The No.1 Website for Pro Audio
Evaluating AD/DA loops by means of Audio Diffmaker
Old 13th November 2014 | Show parent
  #691
Quote:
Originally Posted by syns View Post
here is mine, echo audiofire4. line out 1 2 to line in 3 4 (am i doing this correctly?)

https://dl.dropboxusercontent.com/u/...Audiofire4.wav
Quote:
Originally Posted by didier.brest View Post
It seems that the polarity of the right channel is reversed. I shall check this further on tomorrow.
Indeed it is. I have corrected this and here is the Audio DiffMaker result:

parameters: -8,133msec, 0,379dB (L), 0,398dB (R)..Corr Depth: 26,3 dB (L), 27,6 dB (R) Difference: -45.7 dBFS (L), -46.6 dBFS (R)
Old 13th November 2014 | Show parent
  #692
Test of the Echo AudioFire 4 and the JDS Labs ODAC by syns added to the list of results.

AD-DA loops from this wav file evaluated by means of Audio DiffMaker.

'Difference' indicates RMS level figures measured in Wavelab from the difference file delivered by Audio DiffMaker.
'Difference*' indicates RMS level figures got from a difference file generated in Matlab after refining the time offset and gain figures provided by Audio DiffMaker in order to get the lowest difference level. Hence the 'Difference*' figures are lower than the 'Difference' figures.

AD-DA converters performing from their internal clock

Lynx Hilo (CoolColJ) - 6 last second part disregarded
-0,1 dB (L), -0,1 dB (R) Corr Depth: 41,8 dB (L), 43,7 dB (R), Difference*: -59.1 dBFS (L), -59.2 dBFS (R)

MOTU 2408mk3 (ram75)
0,1 dB (L), 0,1 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56,7 dBFS (L), -58,1 dBFS (R)

MOTU 828mk2
laurend: 6.1 dB (L), 6.2 dB (R) Corr Depth: 36,4 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)
MusicManic: -0.1 dB (L), -0,0 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)

MOTU 24I/O
Zam on Pragmatic Audio: 0,1dB (L), 0,1dB (R)..Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference: -56,0 dB (L), -56,7 dB (R)
ram75: 0,1 dB (L), 0,1 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference: -55,80 dBFS (L), -56,8 dBFS (R)

Mytek 8 x 192 AD/DA (MainTime)
0,4 dB (L), 0,5 dB (R) Corr Depth: 35,3 dB (L), 36,9 dB (R) Difference*: -55.8 dBFS (L) -57.1 dBFS (R)

Lynx Aurora 8 (cylens)
-0,1 dB (L), -0,1 dB (R) Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference*: -54.5 dBFS (L) -55.6 dBFS (R)

Lynx Aurora 16 (Touf on Pragmatic Audio)
-0,1dB (L), -0,1dB (R)..Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference -54,2 dBFS (L) , -55,1 dBFS (R)

Edirol UA-1000 (gollumsluvslave)
0,2 dB (L), 0,2 dB (R) Corr Depth: 34,0 dB (L), 35,6 dB (R) Difference: -53.7 dBFS (L), -54.7 dBFS (R)

TC Electronic Konnekt 48 (DownSideUp)
13,1dB (L), 13,2dB (R)..Corr Depth: 33,2 dB (L), 34,8 dB (R) Difference: -52.9 dBFS (L) -53.8 dBFS (R)

Merging Technologies Hapi with premium DA and AD cards (Touf on Pragmatic Audio)
0.08 dB (L), 0.07 dB (R) Corr Depth: 35,9 dB (L), 37,2 dB (R) Difference*: -53.0 dBFS (L), -52.8 dBFS (R)

ESI [email protected] (Agustin Mongelli)
5,6dB (L), 5,7dB (R) Corr Depth: 33,0 dB (L), 34,6 dB (R) Difference: -52,5 dBFS (L), -53,7 dBFS (R)

ESI [email protected] XTe (DUJS)
-0,4 dB (L), 0,0 dB (R) Corr Depth: 32,7 dB (L), 34,3 dB (R) Difference: -52,3 dBFS (L), -53,5 dBFS (R)

TC Electronics Impact Twin (AndG)

-0,4dB (L), 0,0dB (R) Corr Depth: 32,0 dB (L), 33,6 dB (R) Difference: -51.7 dBFS (L) -52.7 dBFS (R)

RME HDSP 9632 (schtim)
0,5 dB (L), 0,5 dB (R) Corr Depth: 31.4 dB (L), 33.0 dB (R) Difference: -51.2 dBFS (L) -52.1 dBFS (R)

Prism Orpheus (MainTime)
0,1 dB (L), 0,1 dB (R) Corr Depth: 30,8 dB (L), 32,4 dB (R) Difference: -51.1 dBFS (L) -52.4 dBFS (R)

RME Fireface 400 (didier.brest)
0.3 dB (L), 0.3 dB (R) Corr Depth: 30,2 dB (L), 31,8 dB (R) Difference*: -50.7 dBFS (L) -52.0 dBFS (R)

MOTU Track16 (EvgenyStudio)
7,0 dB (L), 6,9 dB Corr Depth: 30,0 dB (L), 31,5 dB (R) Difference: -50,4 dBFS (L), -51,6 dBFS (R)

Apogee Symphony I/O (Ajantis)
0,0 dB (L), 0,0 dB (R) Corr Depth: 43,4 dB (L), 45,6 dB (R) Difference*: -51,2 dBFS (L), -50,1 dBFS dB (R)

MOTU 16A (davidbayles)
728.5 ยตs, 1.518 dB (L) 1.513 dB (R) Corr Depth: 43,4 dB (L), 45,6 dB (R) Difference*: -51.1 dBFS (L), -50.1 dBFS (R)

Apogee Rosetta 800 (davidbayle)
0.2 dB (L), 0.2 dB (R) Corr Depth: 39,7 dB (L), 41,7 dB (R) Difference*: -50.0 dBFS (L), -50.9 dBFS (R)

Prism ADA-8XR (shelterr)
-0,03 dB (L), -0,03 dB (R) Corr Depth: 37,5 dB (L), 39,5 dB (R) Difference*: -50,7 dBFS(L) -50,0 dBFS(R)

Crane Song HEDD-92 (Spartacus)
0.5 dB (L), 0.5 dB (R) Corr Depth: 36,6 dB (L), 38,4 dB (R) Difference*: -50.7 dBFS (L) , -50.0 dBFS (R)

TC Electronic Impact Twin (Coucou)
-0.1 dB (L), -0.0 dB (R) Corr Depth: 29,1 dB (L), 30,4 dB (R) Difference: -48,9 dBFS (L), -49,2 dBFS (R)

TC Electronic Impact Twin (ben)
Corr Depth: 29,1 dB (L), 30,8 dB (R) Difference: -48,7 dBFS (L), -49,7 dBFS (R)

Echo Audiofire 12 (guze)
0,7 dB (L), 0,7 dB (R) Corr Depth: 28,8 dB (L), 30,1 dB (R) Difference: -48.4 dBFS (L) -49.2 dBFS (R)

Motu 828 MK3 hybrid (South Paul)
4.5 dB (L), 4.4 dB (R) Corr Depth: 30,0 dB (L), 31,6 dB (R) Difference*: -48.3 dB (L), 48.4 dB (R)

SPL Madison (living sounds)
0,0 dB (L), 0,0 dB (R) Corr Depth: 27,3 dB (L), 28,9 dB (R) Difference: -46.9 dBFS (L), -48.0 dBFS (R)

DAD AX24 ([email protected])
-0,1 dB (L), -0,1 dB (R) Corr Depth: 27,4 dB (L), 28,9 dB (R) Difference*: -46.8 dBFS (L), -47.3 dBFS (R)

Behringer ADA8200 (didier.brest)
gain @ 10 o'clock : 4,3dB (L), 4,6dB (R)..Corr Depth: 27,6 dB (L), 29,2 dB (R) Diff. -46,6 dBFS (L) , -47,7 dBFS (R)
gain mini : 14,7 dB (L), 14,3 dB (R)..Corr Depth: 27,9 dB (L), 29,5 dB (R) Diff. -46,8 dBFS (L) , -47,9 dBFS (R)

E-MU 1616m, left channel only (ben)
-0,4 dB (L), Corr Depth: 28,9 dB (L) Difference: -45,9 dBFS (L)

Antelope Audio Eclipse 384 (Giuseppe Zaccaria)
-0,1 dB (L), -0,21 B (R) Corr Depth: 26,3 dB (L), 27,8 dB (R) Difference: -45.8 dBFS (L) -46.9 dBFS (R)

Echo Audiofire 4
syns 0,4 dB (L), 0,4 dB (R) Corr Depth: 26,3 dB (L), 27,6 dB (R) Difference: -45.7 dBFS (L), -46.6 dBFS (R)
david1103 0,5 dB (L), 0,4 dB Corr Depth: 25,6 dB (L), 27,4 dB (R) Difference: -45,2 dBFS (L), -46,3 dBFS (R)

Universal Audio Apollo Quad (davidbayles)
0.3dB (L), 0.3dB (R). Corr Depth: 26,5 dB (L), 28,0 dB (R). Difference*: -45.7 dBFS (L), -46.4 dBFS (R)

Steinberg UR824 (kegn51)
-0,3 (L), 0,2 dB (R) Corr Depth: 20,5 dB (L), 22,2 dB (R) Difference: -45,0 dBFS (L), -46,1 dBFS (R)

Mackie Onyx Blackjack (kegn51)
2,9 dB (L), 2,9 dB (R) Corr Depth: 30,5 dB (L), 32,3 dB (R) Difference*: -45,1 dB (L), -44,5 dB (R)

Metric Halo ULN-2 (DownSideUp)
Corr Depth: 25,3 dB (L), 26,9 dB (R) Difference: -44,9 dB (L), 46,0 dB (R)

ESI ESP1010 (Agustin Mongelli)
-0,2 dB (L), -0,2 dB (R) Corr Depth: 24,0 dB (L), 25,7 dB (R) Difference*: -44.4 dBFS (L) , -45.9 dBFS (R)

M-Audio FireWire 410 (JonasNorberg)
0,2dB (L) 0,2dB (R)..Corr Depth: 24,5 dB (L), 26,2 dB (R) Difference: -44.1 dBFS (L) -45.3 dBFS (R)

Echo Audiofire 8 non adat CS4272 (guze)
0,8 dB (L), 0,9 dB (R) Corr Depth: 26,4 dB (L), 28,2 dB (R) Difference*: -44.0 dBFS (L) -43.9 dBFS (R)

ECHO INDIGO io (bezen4uk)
0,6 dB (L), 0,6 dB (R) Corr Depth: 26,1 dB (L), 27,8 dB (R) Difference*: -43,8 dB (L), -43,7 dB (R)

RME HDSPe AIO(Touf on Pragmatic Audio)
0,7 dB (L), 0,7 dB (R) Corr Depth: 23,0 dB (L), 24,5 dB (R) Diff. -42,7 dBFS (L) , -43,6 dBFS (R)

RME Multiface II (juki, Audiofanzine)
Unbalanced, -10 dBV: Corr Depth: 22,7 dB (L), 24,4 dB (R) Difference: -42,4 dBFS (L) -43,5 dBFS (R)
Balanced, 4 dBu: Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dBFS (L) -43,0 dBFS (R)

RME Fireface 800 (genelec79)
Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dB (L), -43,0 dB (R)

MOTU Traveler MK1 (sinebox)
Corr Depth: 22,2 dB (L), 23,9 dB (R) Difference: -41,8 dBFS (L), -42,9 dBFS (R)

2011 MacBook Pro (stinkyfingers)
3,5 dB (L), 3,5 dB (R) Corr Depth: 24,5 dB (L), 26,2 dB (R) Difference: -41.8 dBFS (L), -42.4 dBFS (R)

Avid Mbox 3 (Coucou)
5,1 dB (L), 5,1 dB (R) Corr Depth: 21,8 dB (L), 23,6 dB (R) Difference*: -41.3 dBFS (L), -42.0 dBFS (R)

Apogee Duet2 (isma)
1,0 dB (L), 0,9 dB (R) Corr Depth: 19,8 dB (L), 21,4 dB (R) Difference: -40.2 dBFS (L) -41.6 dBFS (R)

Yamaha Steinberg MR816X (didier.brest)
1.1 dB (L), 0.5 dB (R) Corr Depth: 19,1 dB (L), 21,0 dB (R) Difference*: -39.9 dB (L), -41.2 dB (R)

Focusrite Saffire Pro 24 DSP (CoolColJ), first 45s part disregarded
5,2 dB (L), 5,2 dB (R) Corr Depth: 20,2 dB (L), 22,0 dB (R) Difference: -38,9 dBFS (L), -39,9 dBFS (R)

RME Fireface UFX (didier.brest)
XLR outputs 1-2 to TRS inputs 3-4: 0,8 dB (L), 0,7 dB (R) Corr Depth: 18,5 dB (L), 20,1 dB (R) Difference: -38,9 dBFS (L), -40,3 dBFS (R)
TRS outputs 5-6 to TRS inputs 3-4: 0,7 dB (L), 0,7 dB (R) Corr Depth: 18,4 dB (L), 20,1 dB (R) Difference: -38,8 dBFS (L), -40,3 dBFS (R)
outputs 1-2 to XLR preamp inputs 9-10: 0,5 dB (L), 0,4 dB (R) Corr Depth: 14,7 dB (L), 16,2 dB (R) Difference: -35,0 dBFS (L) -36,3 dBFS (R)

Sony Vaio [email protected] (kegn51)
Corr Depth: 20,4 dB (L), 22,0 dB (R) Diff. -38,9 dBFS (L) , -40,0 dBFS (R)

Antelope Audio Orion (davidbayle)
Corr Depth: 19,2 dB (L), 20,7 dB (R) Difference: -38,9 dBFS (L), -39,9 dBFS (R)

Focusrite Forte (Coucou)
9,9 dB (L), 9,9 dB (R) Corr Depth: 18,3 dB (L), 19,8 dB (R) Difference: -38,3 dBFS (L), -39,4 dBFS (R)

Focusrite Liquid Saffire 56, Line output to microphone input + pad (Melodeath)
0,2 dB (L), 0,2 dB (R) Corr Depth: 17,9 dB (L), 19,3 dB (R) Difference: -37,9 dBFS (L) -38,9 dBFS (R)

Echo AudioFire 2 (dheming)
0.6 dB (L), 0.2 dB (R) Corr Depth: 20,8 dB (L), 21,9 dB (R) Difference*: -37.8 dBFS (L), -37.9 dBFS (R)

Lavry Blue (Touf on Pragmatic Audio)
Modes Crystal and Narrow : 0,2 dB (L), 0,2 dB (R)..Corr Depth: 16,8 dB (L), 18,3 dB (R) Difference -36,5 dBFS (L) , -37,5 dBFS (R)
Mode Wide: Corr Depth: 16,8 dB (L), 18,3 dB (R) Difference: -36,4 dBFS (L) , -37,6 dBFS (R)

TASCAM UH-7000 (sm5)
6,8 dB (L), 6,5 dB (R) Corr Depth: 15,5 dB (L), 17,1 dB (R) Difference: -35.2 dBFS (L) -36.2 dBFS (R)

Asus 11.6" laptop (kegn51)
1,3 dB (L), 1,7 dB (R) Corr Depth: 15,5 dB (L), 17,0 dB (R) Difference: -35,2 dBFS (L) , -36,2 dBFS (R)

Edirol FA-66 (didier.brest)
1,0 dB (L), 0,6 dB (R) Corr Depth: 15,6 dB (L), 17,1 dB (R) Difference: -34.4 dBFS (L) -35.4 dBFS (R)

Focusrite Scarlett 2i2 (EvgenyStudio)
15,5 dB (L), 15,5 dB (R)Corr Depth: 19,3 dB (L), 23,6 dB (R) Difference*: -32,4 dBFS (L), -31,7 dBFS (R)

Line 6 POD Studio UX2 (Piux)
-0,5 dB (L), -0,4 dB (R) Corr Depth: 11,0 dB (L), 12,5 dB (R) Difference: -30.6 dBFS (L) -31.6 dBFS (R)

RME Babyface (didier.brest)
0,6 dB (L), 0,7 dB (R) Corr Depth: 9,2 dB (L), 10,8 dB (R) Difference: -28.8 dBFS (L) -29.8 dBFS (R)



External clocking


MOTU 828mkII clocked by Lucid GENx192 (MusicManic)
-0.1 dB (L), -0,0 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)

Lynx Aurora 8 clocked by RME HDSPe RayDAT (cylens)
Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference: -55.3 dBFS (L) -56.5 dBFS (R)

RME ADI-8 DS Mk III clocked through ADAT by RME HDSP 9652 (maartenl945)
0,2 dB (L), 0,2 dB (R) Corr Depth: 32,9 dB (L), 34,4 dB (R) Difference*: -49.9 dBFS (L), -49.9 dBFS (R)

Ferrofish A16 MK-II clocked by RME HDSPe RayDAT (ST.)
0,3 dB (L), 0,3 dB (R) Corr Depth: 26,6 dB (L), 28,2 dB (R) Difference: -46.3 dBFS (L) -47.3 dBFS (R)

Apogee Rosetta 800 clocked by Universal Audio Apollo (davidbayle)
Corr Depth: 39,7 dB (L), 41,7 dB (R) Difference: -45,9 dBFS (L), -45,8 dBFS (R)

Apogee Rosetta 800 clocked by Antelope Orion (davidbayle)
Corr Depth: 39,6 dB (L), 41,6 dB (R) Difference: -45,9 dBFS (L), -45,8 dBFS (R)

Echo Audiofire 8 with ADAT clocked by RME HDSP 9632 (schtim)
Corr Depth: 25.9 dB (L), 27.5 dB (R) Difference: -45.5 dBFS (L) -46.5 dBFS (R)

M-Audio Profire2626 clocked by RME HDSPe RayDAT (cylens)
Corr Depth: 24,4 dB (L), 25,9 dB (R) Difference: -44.1 dBFS (L) -45.0 dBFS (R)

M-Audio Profire2626 clocked by Lynx Aurora8 (cylens)
Corr Depth: 24,4 dB (L), 25,9 dB (R) Difference: -44.0 dBFS (L) -44.9 dBFS (R)

Behringer ADA8000 clocked by RME Fireface UFX (Krisprolls on Pragmatic Audio)
minimum gain : 13,4 dB (L), 13,4 dB (R)..Corr Depth: 24,4 dB (L), 25,9 dB (R) Diff. -44,0 dBFS (L) , -45,3 dBFS (R)
gain @ 4 : 1,2 dB (L), 1,4 dB (R)..Corr Depth: 23,9 dB (L), 25,5 dB (R) Diff. -42,3 dBFS (L) , -44,5 dBFS (R)

Universal Audio Apollo clocked by Apogee Rosetta (davidbayle)
Corr Depth: 26,5 dB (L), 28,0 dB (R) Difference: -42,7 dBFS (L), -43,0 dBFS (R)

Universal Audio Apollo clocked by Antelope Orion (davidbayle)
Corr Depth: 26,5 dB (L), 28,0 dB (R) Difference: -42,7 dBFS (L), -43,0 dBFS (R)

RME Fireface 800 clocked by Yamaha 02R (genelec79)
Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dBFS (L), -43,0 dBFS (R)



Sets of different converters


Synchronised mode ('master' indicates which converter delivers the master clock)

Forssell MDAC-4 ----> Focusrite Blue 245 master, (funkakuchi on Pragmatic Audio)
Focusrite sensitivity 0 dBFS = 16 dBu
0.1 dB (L), 0.0 dB (R) Corr. Depth: 64.7 dB (L), 65.6 dB (R) Difference*: -70.2 dBFS (L), -70.2 dBFS (R)
Focusrite sensitivity 0 dBFS = 16 dBu, DC offset removed
0,1 dB (L), 0,0 dB (R) Corr Depth: 64.7 dB (L), 65.7 dB (R) Difference: -77.1 dBFS (L) -78.1 dBFS (R)
Focusrite sensitivity 0 dBFS = 20 dBu
4.0 dB (L), 4.0 dB (R) Corr Depth: 66.9 dB (L), 69.8 dB (R) Difference: -76.6 dBFS (L) -62.4 dBFS (R), Difference after DC offset removal: -80.7 dBFS (L) -79.7 dBFS (R)

SPL Madison ---> Texas Instrument PCM4222 Evaluation Module master (living sounds) . Details of the clocking.
0,2 dB (L), 0,2 dB (R) Corr Depth: 78,7 dB (L), 81,2 dB (R) Difference: -77.5 dBFS (L), -79.3 dBFS (R)

MSB Platinum IV Plus DAC ---> MSB Studio ADC master (DUJS)
4,9 dB (L), 4,9 dB (R) Corr Depth: 62,8 dB (L), 63,4 dB (R) Difference: -77,7 dBFS (L), -77,4 dBFS (R)

ReQuest Audio, The Beast DAC master ---> MSB Platinum Studio ADC (DUJS)
Corr Depth: 62,0 dB (L), 63,4 dB (R) Difference: -76,9 dBFS (L), -76,3 dBFS (R)

Swissonic DA24 MkII ---> Texas Instrument PCM4222 Evaluation Module master + DC offset removal (living sounds)
0,1 dB (L), 0,1 dB (R) Corr Depth: 82,6 dB (L), 85,5 dB (R) Difference*: -73.0 dBFS (L), -73.8 dBFS (R)

[email protected] XTe DAC ---> MSB Studio ADC master (DUJS)
Corr Depth: 46,0 dB (L), 48,0 dB (R) Difference: -65,3 dBFS (L), -66,7 dBFS (R)

Forsell MDAC-4 ---> Studer D19 master (funkakuchi on Pragmatic Audio)
0,1 dB (L), 0,1 dB (R) Corr Depth: 34,3 dB (L), 36,2 dB (R) Difference: -53.9 dBFS (L), -55.3 dBFS (R)

Lynx Aurora 16 ---> Focusrite Blue 245 master (funkakuchi on Pragamatic Audio)
0,04 dB (L), 0,02 dB (R) Corr Depth: 63,4 dB (L), 62,2 dB (R) Difference*: -53.4 dBFS(L) -52.5 dBFS(R)

Forsell MDAC-4 ---> Forsell MADC-2 (first version) master (funkakuchi on Pragmatic Audio)
0,5dB (L), 0,5 dB (R) Corr Depth: 29,6 dB (L), 31,1 dB (R) Difference: -49,2 dB (L), -50,3 dB (R)

Atoll DAC200 --> RME Babyface master (didier.brest)
Corr Depth: 10,1 dB (L), 11,9 dB (R) Difference: -30,0 dBFS (L) -31.3 dBFS (R)

RME Babyface --> RME Fireface 400 (didier.brest)
Corr Depth: 16,6 dB (L), 18,4 dB (R) Difference: -29,4 dBFS (L), -28,8 dBFS (R)

Benchmark DAC1 phone output ---> Echo Audiofire 4 (david1103)
Corr Depth: 10,4 dB (L), 10,2 dB (R) Difference: -22,6 dBFS (L), -23,1 dBFS (R)

Unsynchronized mode. The DA and AD converters run each on its own clock. Measurement performed with sample rate drift correction activated in Audio DiffMaker and limited to the first half of the sample. Because the RMS level of this first half is 1 dB lower than the RMS level of the full-size sample, one must increase the difference RMS level figures by 1 dB for comparison with the synchronized mode.

Benchmark DAC2 HGC ---> Mytek 8x192 AD/DA (dheming)
4,1 dB (L), 4,1 dB (R). rate adj=4,4143 ppm.Corr Depth: 36,1 dB (L), 38,1 dB (R) Difference: -56.9 dBFS (L), -58.2 dBFS (R)

JDS Labs ODAC ---> Echo AudioFire 4 (syns)
10,2 dB (L), 10,2 dB (R). rate adj=8,1413 ppm.Corr Depth: 26,5 dB (L), 28,6 dB (R) Difference: -47.2 dBFS (L), -48.6 dBFS (R)

ATOLL DAC 200 --> RME Fireface UFX (didier.brest)
2,3 dB (L), 2,4 dB (R). rate adj=8,8289 ppm.Corr Depth: 23,2 dB (L), 25,3 dB (R) Difference: -44,0 dBFS (L), -45,4 dBFS (R)

Benchmark DAC2 HGC ---> Marantz PMD661 (dheming)
4,1 dB (L), 4,5 dB (R). rate adj=14,8525 ppm.Corr Depth: 23,0 dB (L), 25,1 dB (R) Difference: -43.8 dBFS (L), -45.2 dBFS (R)

ATOLL DAC 200 --> RME Babyface (didier.brest)
Rate adj=-4,3193 ppm.Corr Depth: 10,8 dB (L), 13,0 dB (R) Difference: -31,5 dBFS (L), -33,1 dBFS

For contributing to this test :
- download the test 2 x 44 kHz x 24 bit wav file (31 Mb),
- cable link the 2 DAC outputs to 2 ADC inputs,
- play back the test file to the DAC outputs and record from the ADC inputs,
- upload to mediafire or any other file sharing site the 2 x 44 kHz x 24 bit wav file from this recording and
- provide the download link here with information about ADC and DAC identities.
Your contribution is welcome even if your converter is already in the above list.
Thank you !
Old 13th November 2014 | Show parent
  #693
Lives for gear
 
funka's Avatar
 

Anyone with a Ross Martin A/D(PCM4222) & D/A would like to do the test?
Old 13th November 2014
  #694
Gear Nut
 
syns's Avatar
 

Ill do x32 and rme 800 next week if anyone interesed
Old 14th November 2014
  #695
Of course we are !
Old 14th November 2014 | Show parent
  #696
Well I played around with the Audiofire 2 a bit more today and it turns out the various problems were all due to a bad Firewire cable.

With it working properly again I did the final two tests just now. Benchmark DAC2 HGC feeding the Echo Audiofire 2:

DAC2_Audiofire2



As well as the Echo Audiofire 2 feeding the Mytek Stereo192 ADC:

Audiofire2_Mytek



As before, both of these were done in unsynchronized mode.
Old 14th November 2014 | Show parent
  #697
Quote:
Originally Posted by funka View Post
Anyone with a Ross Martin A/D(PCM4222) & D/A would like to do the test?
I'd like to see these too actually.
Old 14th November 2014
  #698
Gear Nut
I know this isn't a listening test, but I spent the last hour listening to most of the converters listed and now I have Prism envy. I normally don't hear much difference between products when I listen to various converter shootouts, but this one I can hear a definite difference through my Hafler trans-nova studio monitors. I thought the Prism ADA-8XR stood by itself. I literally felt like I was sitting in front of a live orchestra. Amazing clarity, depth, and 3D like separation. The horns popped right out, where in some of them I didn't even notice them. Some of these converters would break my ears if I had to listen to them all day. I liked my Cranesong HEDD 192, and thought it was in the upper end of the list along with the Mytek. The HEDD 192 was one of my favorites when listening through my Sony MDR-7506 headphones. There was definitely a difference between the monitors and my headphones.

Thanks for posting all of these files. Great stuff!
Old 14th November 2014 | Show parent
  #699
Quote:
Originally Posted by dheming View Post
Well I played around with the Audiofire 2 a bit more today and it turns out the various problems were all due to a bad Firewire cable.

With it working properly again I did the final two tests just now. Benchmark DAC2 HGC feeding the Echo Audiofire 2:

DAC2_Audiofire2



As well as the Echo Audiofire 2 feeding the Mytek Stereo192 ADC:

Audiofire2_Mytek



As before, both of these were done in unsynchronized mode.
I am sorry: the sample rate adjustment values provided by Audio DiffMaker, 1.2553 ppm and 0.0000 ppm, are obviously wrong. By selecting 2 marks in the original and the corresponding ones in the copy, then determining the numbers of samples between both marks for the original and the copy, which can be done easily in Wavelab, I have determined the relative difference of the sample rates being equal to 54 and 47 ppm. This might be out of the measurement range of Audio DiffMaker. In both tests, the difference file provided by Audio DiffMaker has a level close to the one of the original.
Old 15th November 2014 | Show parent
  #700
Quote:
Originally Posted by didier.brest View Post
I am sorry: the sample rate adjustment values provided by Audio DiffMaker, 1.2553 ppm and 0.0000 ppm, are obviously wrong. By selecting 2 marks in the original and the corresponding ones in the copy, then determining the numbers of samples between both marks for the original and the copy, which can be done easily in Wavelab, I have determined the relative difference of the sample rates being equal to 54 and 47 ppm. This might be out of the measurement range of Audio DiffMaker. In both tests, the difference file provided by Audio DiffMaker has a level close to the one of the original.
So what does this mean? What do I need to do differently?
Old 15th November 2014 | Show parent
  #701
Quote:
Originally Posted by dheming View Post
So what does this mean? What do I need to do differently?
You did nothing wrong. It is just that the sampling frequency of the AudioFire2 is too much different (50 ppm at 44 100 Hz is about 2 Hz) from the sampling frequency of the Benchmark and the Mytek for this discrepancy being measured and compensated by Audio DiffMaker.
Could you do synchronised test by using the SPDIF in and out of the AudioFire 2 through the breakout cable that links these ports to the MIDI port ?
Old 15th November 2014 | Show parent
  #702
Here for the gear
 

Can someone answer a few questions for a non-audio professional? A while back my MOTU 828 MKii Firewire interface had some problems and wouldn't work. I investigated new interfaces and had narrowed it down to SPL Crimson, Audient id22 or Aphex USB 500 rack. Then while reading these forums, I realized I could call MOTU for a replacement. For about $100, they sent me another 828 MKii, so I never bought any of the others although I am still interested in them but after reading this I don't quite know why. These tests show that I already have one of the best interfaces in terms of AD/DA quality. Does this mean that my 828 MKii should sound just as good or better than those I listed when not using the preamps? I only track by myself. I only use preamps for recording acoustic guitars (nylon and steel string). I use SPDIF, or analog ins on the MOTU for recording electric guitar directly from my Kemper KPA. All drums, bass and other instruments are recorded using plug-ins (Spectrasonics Trilian, Logic EXS-24, Drumcore, EZ Keys/Drums etc.). Maybe I should be looking at adding Mic-pres, mic-pre plug-ins or other items to my set-up instead? By the way, I also have a Sonorus AudI/O AD/24 converter that has 8 inputs and ADAT output (but I haven't used it since selling my Mackie 8-channel mixer - the AD in the MOTU may be better; I'd be willing to test that Sonorus AD for the forum if you can explain how to do it.). Thanks in advance for your advice and opinions.
Old 15th November 2014
  #703
Gear Nut
 
syns's Avatar
 

ODAC (RCA out) > Audiofire4 (line 3 4 in)

https://dl.dropboxusercontent.com/u/2658737/ODAC.wav
Old 15th November 2014 | Show parent
  #704
Quote:
Originally Posted by syns View Post
ODAC (RCA out) > Audiofire4 (line 3 4 in)

https://dl.dropboxusercontent.com/u/2658737/ODAC.wav

Result from AudioDiffMaker :
Parameters: 23,22msec, 0,000dB (L), 0,000dB (R)..Corr Depth: 120,8 dB (L), 123,0 dB (R)

I checked in Wavelab that, except at its both ends where a part of duration 30 ms shall be disregarded, this loopback file is close to an exact copy of the original with a time offset exactly equal to 1024 samples. By compensating this shift, reversing the polarity of one file and summing both files, I have got the difference level -105.1 dBFS (L) and -106.1 dBFS (R),which is 25 dB lower than the best performance achieved up to now. I was not expecting that from a 100 $ converter. and an audio interface that has achieve a mid-range performance in this same DA-AD test : -45.7 dBFS (L), -46.6 dBFS (R).
Could you give more details of how you did this test ? Both converters linked to the same computer ? How the synchronisation was done ?
Old 15th November 2014 | Show parent
  #705
Gear Nut
 
syns's Avatar
 

Quote:
Originally Posted by didier.brest View Post
Result from AudioDiffMaker :
Parameters: 23,22msec, 0,000dB (L), 0,000dB (R)..Corr Depth: 120,8 dB (L), 123,0 dB (R)

I checked in Wavelab that, except at its both ends where a part of duration 30 ms shall be disregarded, this loopback file is close to an exact copy of the original with a time offset exactly equal to 1024 samples. By compensating this shift, reversing the polarity of one file and summing both files, I have got the difference level -105.1 dBFS (L) and -106.1 dBFS (R),which is 25 dB lower than the best performance achieved up to now. I was not expecting that from a 100 $ converter. and an audio interface that has achieve a mid-range performance in this same DA-AD test : -45.7 dBFS (L), -46.6 dBFS (R).
Could you give more details of how you did this test ? Both converters linked to the same computer ? How the synchronisation was done ?
audiofire4 > firewire > pc. odac > usb > pc. same pc.
to able to record them, and play with odac, i use software called voicemeeter. the software can route 2-3 soundcard to 1 output. and use asio4all for the odac.
Old 15th November 2014 | Show parent
  #706
Lives for gear
 

Quote:
Originally Posted by didier.brest View Post
Result from AudioDiffMaker :
Parameters: 23,22msec, 0,000dB (L), 0,000dB (R)..Corr Depth: 120,8 dB (L), 123,0 dB (R)

I checked in Wavelab that, except at its both ends where a part of duration 30 ms shall be disregarded, this loopback file is close to an exact copy of the original with a time offset exactly equal to 1024 samples. By compensating this shift, reversing the polarity of one file and summing both files, I have got the difference level -105.1 dBFS (L) and -106.1 dBFS (R),which is 25 dB lower than the best performance achieved up to now. I was not expecting that from a 100 $ converter. and an audio interface that has achieve a mid-range performance in this same DA-AD test : -45.7 dBFS (L), -46.6 dBFS (R).
Could you give more details of how you did this test ? Both converters linked to the same computer ? How the synchronisation was done ?
It's pretty clear that this is not a valid loopback test... ;-)
Old 15th November 2014
  #707
Gear Nut
 
syns's Avatar
 

maybe i did it wrong, ill do it again without the voicemeeter

edit: here is the new one, without the voicemeeter, i think i did it wrong before this.

https://dl.dropboxusercontent.com/u/2658737/ODAC3.wav
Old 15th November 2014 | Show parent
  #708
Quote:
Originally Posted by syns View Post
maybe i did it wrong, ill do it again without the voicemeeter

edit: here is the new one, without the voicemeeter, i think i did it wrong before this.

https://dl.dropboxusercontent.com/u/2658737/ODAC3.wav
There is a left-right flip that I have corrected.
Audi DiffMaker result:
parameters: -1,988msec, 10,228dB (L), 10,219dB (R). rate adj=8,1413 ppm.Corr Depth: 26,5 dB (L), 28,6 dB (R) Difference: -47.2 dBFS (L), -48.6 dBFS (R)

Added to the above list of results in the asynchronous tests.
Old 15th November 2014 | Show parent
  #709
Quote:
Originally Posted by didier.brest View Post
Could you do synchronised test by using the SPDIF in and out of the AudioFire 2 through the breakout cable that links these ports to the MIDI port ?
I could use the Mytek to clock the Audiofire2, but the Benchmark does not have a SPDIF out.
Old 16th November 2014 | Show parent
  #710
Got the Digi 003R and Tascam DA3000 loopbacks done tonight. For the 003 Rack I used outputs 1 & 2 feeding inputs 5 & 6 via TRS cables. On this interface channels 1-4 have mic pres that are bypassable, whereas inputs 5-8 are dedicated line level TRS inputs. I chose inputs 5 & 6 since there is less circuitry in the signal path.

003R_Loopback



The loopback for the Tascam was done in ADDA Direct mode via the main XLR I/O. The 003R communicated with the DA3000 via SPDIF.

DA3000_Loopback
Old 16th November 2014
  #711
Gear Nut
 
syns's Avatar
 

RME Fireface 800 (Line out to Line in)
I have to lower the output to -10db and input to lo gain to prevent distortion. The level of audio pretty low.
https://dl.dropboxusercontent.com/u/2658737/RME.wav


ODAC (Phone out) > RME Fireface 800 (Line In)
https://dl.dropboxusercontent.com/u/...7/ODAC-RME.wav


btw how did you calculate the difference?
Old 16th November 2014 | Show parent
  #712
Lives for gear
 
stinkyfingers's Avatar
 

Quote:
Originally Posted by djazz View Post
These tests show that I already have one of the best interfaces in terms of AD/DA quality. Does this mean that my 828 MKii should sound just as good or better than those I listed when not using the preamps?
be careful when drawing conclusions from the test results.
this test only shows the Motu 828mk2 can do very well on a da/ad loopback null test.
but why ?
how does this relate to ad/da 'quality' ?
my macbook pro scored better than the Duet usb, which i had for a while. do you think the macbook pro is a better quality ad/da than the Duet usb was ?
i didn't either...

edit: also, there was a similar thread a while back that had the original duet firewire performing better than the newer duet usb...would apogee really downgrade their converters ? i had both, imo duet usb was better.
Old 16th November 2014 | Show parent
  #713
Quote:
Originally Posted by dheming View Post
The loopback for the Tascam was done in ADDA Direct mode via the main XLR I/O. The 003R communicated with the DA3000 via SPDIF.

DA3000_Loopback
There is a left-right flip that I have corrected. Here's the result:
parameters: -1,384msec, 0,509dB (L), 0,441dB (R)..Corr Depth: 22,5 dB (L), 24,0 dB (R) Difference: -40.5 dBFS (L), -40.7 dBFS (R)

I will issue a new list of results, including this one, later on.
Old 16th November 2014 | Show parent
  #714
Quote:
Originally Posted by stinkyfingers View Post
be careful when drawing conclusions from the test results.
this test only shows the Motu 828mk2 can do very well on a da/ad loopback null test.
but why ?
how does this relate to ad/da 'quality' ?
my macbook pro scored better than the Duet usb, which i had for a while. do you think the macbook pro is a better quality ad/da than the Duet usb was ?
i didn't either...
true.
And If the Loopback test ignores the clock performance, we could say it doesn't reveal one of the most important aspect of what makes a lesser converter.

There might be some units with crappy clocks up the list and some excellent overall converters thrown down the list by a low pass or high pass filter ?
Old 16th November 2014 | Show parent
  #715
Quote:
Originally Posted by dheming View Post
For the 003 Rack I used outputs 1 & 2 feeding inputs 5 & 6 via TRS cables. On this interface channels 1-4 have mic pres that are bypassable, whereas inputs 5-8 are dedicated line level TRS inputs. I chose inputs 5 & 6 since there is less circuitry in the signal path.

003R_Loopback
Here's the result:
parameters: 25,07usec, 0,407dB (L), 0,480dB (R)..Corr Depth: 18,6 dB (L), 20,0 dB (R) Difference: -38.3 dBFS (L), -39.1 dBFS (R).
Old 16th November 2014 | Show parent
  #716
Quote:
Originally Posted by syns View Post
RME Fireface 800 (Line out to Line in)
I have to lower the output to -10db and input to lo gain to prevent distortion. The level of audio pretty low.
https://dl.dropboxusercontent.com/u/2658737/RME.wav
Here's the result:
parameters: -623,5msec, 15,547dB (L), 15,601dB (R)..Corr Depth: 14,5 dB (L), 15,9 dB (R) Difference: -31.9 dBFS (L), -31.6 dBFS (R)

This test performs 10 dB less than the one already available in the list of results. I think that using low level output and low sensitivity may have had a negative impact with respect to the better alternative of using +4 dBu inputs and outputs and adjusting the gain of the software playback in TotalMix just to minus a few dBs for avoiding clipping.

I will issue a new list of results, including this one, later on.
Old 16th November 2014 | Show parent
  #717
Quote:
Originally Posted by syns View Post
ODAC (Phone out) > (Line In)
https://dl.dropboxusercontent.com/u/...7/ODAC-RME.wav


btw how did you calculate the difference?
Here's the result:
parameters: -801,9msec, 5,331dB (L), 5,339dB (R). rate adj=-1,5467 ppm.Corr Depth: 23,2 dB (L), 25,5 dB (R) Difference: -43.8 dBFS (L), -45.3 dBFS (R)
Will be included in the next issue of the list of results.

For the 'Difference' figures, I am using the RMS level measurement facility of Wavelab on the difference file provided by Audio DiffMaker.
Old 16th November 2014 | Show parent
  #718
Lives for gear
 

It's very easy to get awfull test results just by introducing lot's of phase shift. But I've also got to say, that better test results clearly correlate with what I hear as better sound, even for the DAC by itself.

There are many parameters relevant to audio, and this test tends to show the weakest one, which might not automatically matter much in a studio situation. But I've also got to say that my console, which I tuned by ear, measures better through my best DA AD chain than most converters tested here.

With the Lynx Aurora DAC and EVM4222 combination I get much better results with the Aurora running at 88,2khz internally while being fed a 44,1khz signal going into the EVM at 44,1khz also on its own clock (using sample drift compensation), than running the Aurora at 44,1khz clocked to the EVM. The first method produces Aliasing, but in the test it comes out better than the second version, due to the difference generated by the Auroras low pass filter at the lower sample rate.
Old 16th November 2014 | Show parent
  #719
Tests of the Tascam DA-3000 and the Digidesign 003 Rack by dhemin and the Fireface 800 and the JDLS Labs ODAC by syns added to the list of results.

AD-DA loops from this wav file evaluated by means of Audio DiffMaker.

'Difference' indicates RMS level figures measured in Wavelab from the difference file delivered by Audio DiffMaker.
'Difference*' indicates RMS level figures got from a difference file generated in Matlab after refining the time offset and gain figures provided by Audio DiffMaker in order to get the lowest difference level. Hence the 'Difference*' figures are lower than the 'Difference' figures.

AD-DA converters performing from their internal clock

Lynx Hilo (CoolColJ) - 6 last second part disregarded
-0,1 dB (L), -0,1 dB (R) Corr Depth: 41,8 dB (L), 43,7 dB (R), Difference*: -59.1 dBFS (L), -59.2 dBFS (R)

MOTU 2408mk3 (ram75)
0,1 dB (L), 0,1 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56,7 dBFS (L), -58,1 dBFS (R)

MOTU 828mk2
laurend: 6.1 dB (L), 6.2 dB (R) Corr Depth: 36,4 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)
MusicManic: -0.1 dB (L), -0,0 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)

MOTU 24I/O
Zam on Pragmatic Audio: 0,1dB (L), 0,1dB (R)..Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference: -56,0 dB (L), -56,7 dB (R)
ram75: 0,1 dB (L), 0,1 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference: -55,80 dBFS (L), -56,8 dBFS (R)

Mytek 8 x 192 AD/DA (MainTime)
0,4 dB (L), 0,5 dB (R) Corr Depth: 35,3 dB (L), 36,9 dB (R) Difference*: -55.8 dBFS (L) -57.1 dBFS (R)

Lynx Aurora 8 (cylens)
-0,1 dB (L), -0,1 dB (R) Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference*: -54.5 dBFS (L) -55.6 dBFS (R)

Lynx Aurora 16 (Touf on Pragmatic Audio)
-0,1dB (L), -0,1dB (R)..Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference -54,2 dBFS (L) , -55,1 dBFS (R)

Edirol UA-1000 (gollumsluvslave)
0,2 dB (L), 0,2 dB (R) Corr Depth: 34,0 dB (L), 35,6 dB (R) Difference: -53.7 dBFS (L), -54.7 dBFS (R)

TC Electronic Konnekt 48 (DownSideUp)
13,1dB (L), 13,2dB (R)..Corr Depth: 33,2 dB (L), 34,8 dB (R) Difference: -52.9 dBFS (L) -53.8 dBFS (R)

Merging Technologies Hapi with premium DA and AD cards (Touf on Pragmatic Audio)
0.08 dB (L), 0.07 dB (R) Corr Depth: 35,9 dB (L), 37,2 dB (R) Difference*: -53.0 dBFS (L), -52.8 dBFS (R)

ESI [email protected] (Agustin Mongelli)
5,6dB (L), 5,7dB (R) Corr Depth: 33,0 dB (L), 34,6 dB (R) Difference: -52,5 dBFS (L), -53,7 dBFS (R)

ESI [email protected] XTe (DUJS)
-0,4 dB (L), 0,0 dB (R) Corr Depth: 32,7 dB (L), 34,3 dB (R) Difference: -52,3 dBFS (L), -53,5 dBFS (R)

TC Electronics Impact Twin (AndG)

-0,4dB (L), 0,0dB (R) Corr Depth: 32,0 dB (L), 33,6 dB (R) Difference: -51.7 dBFS (L) -52.7 dBFS (R)

RME HDSP 9632 (schtim)
0,5 dB (L), 0,5 dB (R) Corr Depth: 31.4 dB (L), 33.0 dB (R) Difference: -51.2 dBFS (L) -52.1 dBFS (R)

Prism Orpheus (MainTime)
0,1 dB (L), 0,1 dB (R) Corr Depth: 30,8 dB (L), 32,4 dB (R) Difference: -51.1 dBFS (L) -52.4 dBFS (R)

RME Fireface 400 (didier.brest)
0.3 dB (L), 0.3 dB (R) Corr Depth: 30,2 dB (L), 31,8 dB (R) Difference*: -50.7 dBFS (L) -52.0 dBFS (R)

MOTU Track16 (EvgenyStudio)
7,0 dB (L), 6,9 dB Corr Depth: 30,0 dB (L), 31,5 dB (R) Difference: -50,4 dBFS (L), -51,6 dBFS (R)

Apogee Symphony I/O (Ajantis)
0,0 dB (L), 0,0 dB (R) Corr Depth: 43,4 dB (L), 45,6 dB (R) Difference*: -51,2 dBFS (L), -50,1 dBFS dB (R)

MOTU 16A (davidbayles)
728.5 ยตs, 1.518 dB (L) 1.513 dB (R) Corr Depth: 43,4 dB (L), 45,6 dB (R) Difference*: -51.1 dBFS (L), -50.1 dBFS (R)

Apogee Rosetta 800 (davidbayle)
0.2 dB (L), 0.2 dB (R) Corr Depth: 39,7 dB (L), 41,7 dB (R) Difference*: -50.0 dBFS (L), -50.9 dBFS (R)

Prism ADA-8XR (shelterr)
-0,03 dB (L), -0,03 dB (R) Corr Depth: 37,5 dB (L), 39,5 dB (R) Difference*: -50,7 dBFS(L) -50,0 dBFS(R)

Crane Song HEDD-92 (Spartacus)
0.5 dB (L), 0.5 dB (R) Corr Depth: 36,6 dB (L), 38,4 dB (R) Difference*: -50.7 dBFS (L) , -50.0 dBFS (R)

TC Electronic Impact Twin (Coucou)
-0.1 dB (L), -0.0 dB (R) Corr Depth: 29,1 dB (L), 30,4 dB (R) Difference: -48,9 dBFS (L), -49,2 dBFS (R)

TC Electronic Impact Twin (ben)
Corr Depth: 29,1 dB (L), 30,8 dB (R) Difference: -48,7 dBFS (L), -49,7 dBFS (R)

Echo Audiofire 12 (guze)
0,7 dB (L), 0,7 dB (R) Corr Depth: 28,8 dB (L), 30,1 dB (R) Difference: -48.4 dBFS (L) -49.2 dBFS (R)

Motu 828 MK3 hybrid (South Paul)
4.5 dB (L), 4.4 dB (R) Corr Depth: 30,0 dB (L), 31,6 dB (R) Difference*: -48.3 dB (L), 48.4 dB (R)

SPL Madison (living sounds)
0,0 dB (L), 0,0 dB (R) Corr Depth: 27,3 dB (L), 28,9 dB (R) Difference: -46.9 dBFS (L), -48.0 dBFS (R)

DAD AX24 ([email protected])
-0,1 dB (L), -0,1 dB (R) Corr Depth: 27,4 dB (L), 28,9 dB (R) Difference*: -46.8 dBFS (L), -47.3 dBFS (R)

Behringer ADA8200 (didier.brest)
gain @ 10 o'clock : 4,3dB (L), 4,6dB (R)..Corr Depth: 27,6 dB (L), 29,2 dB (R) Diff. -46,6 dBFS (L) , -47,7 dBFS (R)
gain mini : 14,7 dB (L), 14,3 dB (R)..Corr Depth: 27,9 dB (L), 29,5 dB (R) Diff. -46,8 dBFS (L) , -47,9 dBFS (R)

E-MU 1616m, left channel only (ben)
-0,4 dB (L), Corr Depth: 28,9 dB (L) Difference: -45,9 dBFS (L)

Antelope Audio Eclipse 384 (Giuseppe Zaccaria)
-0,1 dB (L), -0,21 B (R) Corr Depth: 26,3 dB (L), 27,8 dB (R) Difference: -45.8 dBFS (L) -46.9 dBFS (R)

Echo Audiofire 4
syns 0,4 dB (L), 0,4 dB (R) Corr Depth: 26,3 dB (L), 27,6 dB (R) Difference: -45.7 dBFS (L), -46.6 dBFS (R)
david1103 0,5 dB (L), 0,4 dB Corr Depth: 25,6 dB (L), 27,4 dB (R) Difference: -45,2 dBFS (L), -46,3 dBFS (R)

Universal Audio Apollo Quad (davidbayles)
0.3dB (L), 0.3dB (R). Corr Depth: 26,5 dB (L), 28,0 dB (R). Difference*: -45.7 dBFS (L), -46.4 dBFS (R)

Steinberg UR824 (kegn51)
-0,3 (L), 0,2 dB (R) Corr Depth: 20,5 dB (L), 22,2 dB (R) Difference: -45,0 dBFS (L), -46,1 dBFS (R)

Mackie Onyx Blackjack (kegn51)
2,9 dB (L), 2,9 dB (R) Corr Depth: 30,5 dB (L), 32,3 dB (R) Difference*: -45,1 dB (L), -44,5 dB (R)

Metric Halo ULN-2 (DownSideUp)
Corr Depth: 25,3 dB (L), 26,9 dB (R) Difference: -44,9 dB (L), 46,0 dB (R)

ESI ESP1010 (Agustin Mongelli)
-0,2 dB (L), -0,2 dB (R) Corr Depth: 24,0 dB (L), 25,7 dB (R) Difference*: -44.4 dBFS (L) , -45.9 dBFS (R)

M-Audio FireWire 410 (JonasNorberg)
0,2dB (L) 0,2dB (R)..Corr Depth: 24,5 dB (L), 26,2 dB (R) Difference: -44.1 dBFS (L) -45.3 dBFS (R)

Echo Audiofire 8 non adat CS4272 (guze)
0,8 dB (L), 0,9 dB (R) Corr Depth: 26,4 dB (L), 28,2 dB (R) Difference*: -44.0 dBFS (L) -43.9 dBFS (R)

ECHO INDIGO io (bezen4uk)
0,6 dB (L), 0,6 dB (R) Corr Depth: 26,1 dB (L), 27,8 dB (R) Difference*: -43,8 dB (L), -43,7 dB (R)

RME HDSPe AIO(Touf on Pragmatic Audio)
0,7 dB (L), 0,7 dB (R) Corr Depth: 23,0 dB (L), 24,5 dB (R) Diff. -42,7 dBFS (L) , -43,6 dBFS (R)

RME Multiface II (juki, Audiofanzine)
Unbalanced, -10 dBV: Corr Depth: 22,7 dB (L), 24,4 dB (R) Difference: -42,4 dBFS (L) -43,5 dBFS (R)
Balanced, 4 dBu: Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dBFS (L) -43,0 dBFS (R)

RME Fireface 800
genelec79: Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dB (L), -43,0 dB (R)
-10 dBV outputs to low gain inputs (syns): 15,547dB (L), 15,601dB (R)..Corr Depth: 14,5 dB (L), 15,9 dB (R) Difference: -31.9 dBFS (L), -31.6 dBFS (R)

MOTU Traveler MK1 (sinebox)
Corr Depth: 22,2 dB (L), 23,9 dB (R) Difference: -41,8 dBFS (L), -42,9 dBFS (R)

2011 MacBook Pro (stinkyfingers)
3,5 dB (L), 3,5 dB (R) Corr Depth: 24,5 dB (L), 26,2 dB (R) Difference: -41.8 dBFS (L), -42.4 dBFS (R)

Avid Mbox 3 (Coucou)
5,1 dB (L), 5,1 dB (R) Corr Depth: 21,8 dB (L), 23,6 dB (R) Difference*: -41.3 dBFS (L), -42.0 dBFS (R)

Tascam DA-3000 clocked by Digidesign 003 Rack (dheming)
0,5 dB (L), 0,4 dB (R)..Corr Depth: 22,5 dB (L), 24,0 dB (R) Difference: -40.5 dBFS (L), -40.7 dBFS (R)

Apogee Duet2 (isma)
1,0 dB (L), 0,9 dB (R) Corr Depth: 19,8 dB (L), 21,4 dB (R) Difference: -40.2 dBFS (L) -41.6 dBFS (R)

Yamaha Steinberg MR816X (didier.brest)
1.1 dB (L), 0.5 dB (R) Corr Depth: 19,1 dB (L), 21,0 dB (R) Difference*: -39.9 dB (L), -41.2 dB (R)

RME Fireface UFX (didier.brest)
XLR outputs 1-2 to TRS inputs 3-4: 0,8 dB (L), 0,7 dB (R) Corr Depth: 18,5 dB (L), 20,1 dB (R) Difference: -38,9 dBFS (L), -40,3 dBFS (R)
TRS outputs 5-6 to TRS inputs 3-4: 0,7 dB (L), 0,7 dB (R) Corr Depth: 18,4 dB (L), 20,1 dB (R) Difference: -38,8 dBFS (L), -40,3 dBFS (R)
outputs 1-2 to XLR preamp inputs 9-10: 0,5 dB (L), 0,4 dB (R) Corr Depth: 14,7 dB (L), 16,2 dB (R) Difference: -35,0 dBFS (L) -36,3 dBFS (R)

Sony Vaio [email protected] (kegn51)
Corr Depth: 20,4 dB (L), 22,0 dB (R) Diff. -38,9 dBFS (L) , -40,0 dBFS (R)

Antelope Audio Orion (davidbayle)
Corr Depth: 19,2 dB (L), 20,7 dB (R) Difference: -38,9 dBFS (L), -39,9 dBFS (R)

Focusrite Saffire Pro 24 DSP (CoolColJ), first 45s part disregarded
5,2 dB (L), 5,2 dB (R) Corr Depth: 20,2 dB (L), 22,0 dB (R) Difference: -38,9 dBFS (L), -39,9 dBFS (R)

Focusrite Forte (Coucou)
9,9 dB (L), 9,9 dB (R) Corr Depth: 18,3 dB (L), 19,8 dB (R) Difference: -38,3 dBFS (L), -39,4 dBFS (R)

Focusrite Liquid Saffire 56, Line output to microphone input + pad (Melodeath)
0,2 dB (L), 0,2 dB (R) Corr Depth: 17,9 dB (L), 19,3 dB (R) Difference: -37,9 dBFS (L) -38,9 dBFS (R)

Digidesign 003 Rack (dheming)

0,4 dB (L), 0,5 dB (R) Corr Depth: 18,6 dB (L), 20,0 dB (R) Difference: -38.3 dBFS (L), -39.1 dBFS (R).

Echo AudioFire 2 (dheming)
0.6 dB (L), 0.2 dB (R) Corr Depth: 20,8 dB (L), 21,9 dB (R) Difference*: -37.8 dBFS (L), -37.9 dBFS (R)

Lavry Blue (Touf on Pragmatic Audio)
Modes Crystal and Narrow : 0,2 dB (L), 0,2 dB (R)..Corr Depth: 16,8 dB (L), 18,3 dB (R) Difference -36,5 dBFS (L) , -37,5 dBFS (R)
Mode Wide: Corr Depth: 16,8 dB (L), 18,3 dB (R) Difference: -36,4 dBFS (L) , -37,6 dBFS (R)

TASCAM UH-7000 (sm5)
6,8 dB (L), 6,5 dB (R) Corr Depth: 15,5 dB (L), 17,1 dB (R) Difference: -35.2 dBFS (L) -36.2 dBFS (R)

Asus 11.6" laptop (kegn51)
1,3 dB (L), 1,7 dB (R) Corr Depth: 15,5 dB (L), 17,0 dB (R) Difference: -35,2 dBFS (L) , -36,2 dBFS (R)

Edirol FA-66 (didier.brest)
1,0 dB (L), 0,6 dB (R) Corr Depth: 15,6 dB (L), 17,1 dB (R) Difference: -34.4 dBFS (L) -35.4 dBFS (R)

Focusrite Scarlett 2i2 (EvgenyStudio)
15,5 dB (L), 15,5 dB (R)Corr Depth: 19,3 dB (L), 23,6 dB (R) Difference*: -32,4 dBFS (L), -31,7 dBFS (R)

Line 6 POD Studio UX2 (Piux)
-0,5 dB (L), -0,4 dB (R) Corr Depth: 11,0 dB (L), 12,5 dB (R) Difference: -30.6 dBFS (L) -31.6 dBFS (R)

RME Babyface (didier.brest)
0,6 dB (L), 0,7 dB (R) Corr Depth: 9,2 dB (L), 10,8 dB (R) Difference: -28.8 dBFS (L) -29.8 dBFS (R)



External clocking


MOTU 828mkII clocked by Lucid GENx192 (MusicManic)
-0.1 dB (L), -0,0 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference*: -56.7 dBFS (L) -58.0 dBFS (R)

Lynx Aurora 8 clocked by RME HDSPe RayDAT (cylens)
Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference: -55.3 dBFS (L) -56.5 dBFS (R)

RME ADI-8 DS Mk III clocked through ADAT by RME HDSP 9652 (maartenl945)
0,2 dB (L), 0,2 dB (R) Corr Depth: 32,9 dB (L), 34,4 dB (R) Difference*: -49.9 dBFS (L), -49.9 dBFS (R)

Ferrofish A16 MK-II clocked by RME HDSPe RayDAT (ST.)
0,3 dB (L), 0,3 dB (R) Corr Depth: 26,6 dB (L), 28,2 dB (R) Difference: -46.3 dBFS (L) -47.3 dBFS (R)

Apogee Rosetta 800 clocked by Universal Audio Apollo (davidbayle)
Corr Depth: 39,7 dB (L), 41,7 dB (R) Difference: -45,9 dBFS (L), -45,8 dBFS (R)

Apogee Rosetta 800 clocked by Antelope Orion (davidbayle)
Corr Depth: 39,6 dB (L), 41,6 dB (R) Difference: -45,9 dBFS (L), -45,8 dBFS (R)

Echo Audiofire 8 with ADAT clocked by RME HDSP 9632 (schtim)
Corr Depth: 25.9 dB (L), 27.5 dB (R) Difference: -45.5 dBFS (L) -46.5 dBFS (R)

M-Audio Profire2626 clocked by RME HDSPe RayDAT (cylens)
Corr Depth: 24,4 dB (L), 25,9 dB (R) Difference: -44.1 dBFS (L) -45.0 dBFS (R)

M-Audio Profire2626 clocked by Lynx Aurora8 (cylens)
Corr Depth: 24,4 dB (L), 25,9 dB (R) Difference: -44.0 dBFS (L) -44.9 dBFS (R)

Behringer ADA8000 clocked by RME Fireface UFX (Krisprolls on Pragmatic Audio)
minimum gain : 13,4 dB (L), 13,4 dB (R)..Corr Depth: 24,4 dB (L), 25,9 dB (R) Diff. -44,0 dBFS (L) , -45,3 dBFS (R)
gain @ 4 : 1,2 dB (L), 1,4 dB (R)..Corr Depth: 23,9 dB (L), 25,5 dB (R) Diff. -42,3 dBFS (L) , -44,5 dBFS (R)

Universal Audio Apollo clocked by Apogee Rosetta (davidbayle)
Corr Depth: 26,5 dB (L), 28,0 dB (R) Difference: -42,7 dBFS (L), -43,0 dBFS (R)

Universal Audio Apollo clocked by Antelope Orion (davidbayle)
Corr Depth: 26,5 dB (L), 28,0 dB (R) Difference: -42,7 dBFS (L), -43,0 dBFS (R)

RME Fireface 800 clocked by Yamaha 02R (genelec79)
Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dBFS (L), -43,0 dBFS (R)



Sets of different converters


Synchronised mode ('master' indicates which converter delivers the master clock)

Forssell MDAC-4 ----> Focusrite Blue 245 master, (funkakuchi on Pragmatic Audio)
Focusrite sensitivity 0 dBFS = 16 dBu
0.1 dB (L), 0.0 dB (R) Corr. Depth: 64.7 dB (L), 65.6 dB (R) Difference*: -70.2 dBFS (L), -70.2 dBFS (R)
Focusrite sensitivity 0 dBFS = 16 dBu, DC offset removed
0,1 dB (L), 0,0 dB (R) Corr Depth: 64.7 dB (L), 65.7 dB (R) Difference: -77.1 dBFS (L) -78.1 dBFS (R)
Focusrite sensitivity 0 dBFS = 20 dBu
4.0 dB (L), 4.0 dB (R) Corr Depth: 66.9 dB (L), 69.8 dB (R) Difference: -76.6 dBFS (L) -62.4 dBFS (R), Difference after DC offset removal: -80.7 dBFS (L) -79.7 dBFS (R)

SPL Madison ---> Texas Instrument PCM4222 Evaluation Module master (living sounds) . Details of the clocking.
0,2 dB (L), 0,2 dB (R) Corr Depth: 78,7 dB (L), 81,2 dB (R) Difference: -77.5 dBFS (L), -79.3 dBFS (R)

MSB Platinum IV Plus DAC ---> MSB Studio ADC master (DUJS)
4,9 dB (L), 4,9 dB (R) Corr Depth: 62,8 dB (L), 63,4 dB (R) Difference: -77,7 dBFS (L), -77,4 dBFS (R)

ReQuest Audio, The Beast DAC master ---> MSB Platinum Studio ADC (DUJS)
Corr Depth: 62,0 dB (L), 63,4 dB (R) Difference: -76,9 dBFS (L), -76,3 dBFS (R)

Swissonic DA24 MkII ---> Texas Instrument PCM4222 Evaluation Module master + DC offset removal (living sounds)
0,1 dB (L), 0,1 dB (R) Corr Depth: 82,6 dB (L), 85,5 dB (R) Difference*: -73.0 dBFS (L), -73.8 dBFS (R)

ESI [email protected] XTe DAC ---> MSB Studio ADC master (DUJS)
Corr Depth: 46,0 dB (L), 48,0 dB (R) Difference: -65,3 dBFS (L), -66,7 dBFS (R)

Forsell MDAC-4 ---> Studer D19 master (funkakuchi on Pragmatic Audio)
0,1 dB (L), 0,1 dB (R) Corr Depth: 34,3 dB (L), 36,2 dB (R) Difference: -53.9 dBFS (L), -55.3 dBFS (R)

Lynx Aurora 16 ---> Focusrite Blue 245 master (funkakuchi on Pragamatic Audio)
0,04 dB (L), 0,02 dB (R) Corr Depth: 63,4 dB (L), 62,2 dB (R) Difference*: -53.4 dBFS(L) -52.5 dBFS(R)

Forsell MDAC-4 ---> Forsell MADC-2 (first version) master (funkakuchi on Pragmatic Audio)
0,5dB (L), 0,5 dB (R) Corr Depth: 29,6 dB (L), 31,1 dB (R) Difference: -49,2 dB (L), -50,3 dB (R)

Atoll DAC200 --> RME Babyface master (didier.brest)
Corr Depth: 10,1 dB (L), 11,9 dB (R) Difference: -30,0 dBFS (L) -31.3 dBFS (R)

RME Babyface --> RME Fireface 400 (didier.brest)
Corr Depth: 16,6 dB (L), 18,4 dB (R) Difference: -29,4 dBFS (L), -28,8 dBFS (R)

Benchmark DAC1 phone output ---> Echo Audiofire 4 (david1103)
Corr Depth: 10,4 dB (L), 10,2 dB (R) Difference: -22,6 dBFS (L), -23,1 dBFS (R)

Unsynchronized mode. The DA and AD converters run each on its own clock. Measurement performed with sample rate drift correction activated in Audio DiffMaker and limited to the first half of the sample. Because the RMS level of this first half is 1 dB lower than the RMS level of the full-size sample, one must increase the difference RMS level figures by 1 dB for comparison with the synchronized mode.

Benchmark DAC2 HGC ---> Mytek Stereo 192 (dheming)
4,1 dB (L), 4,1 dB (R). rate adj=4,4143 ppm.Corr Depth: 36,1 dB (L), 38,1 dB (R) Difference: -56.9 dBFS (L), -58.2 dBFS (R)

JDS Labs ODAC ---> Echo AudioFire 4 (syns)
10,2 dB (L), 10,2 dB (R). rate adj=8,1413 ppm.Corr Depth: 26,5 dB (L), 28,6 dB (R) Difference: -47.2 dBFS (L), -48.6 dBFS (R)

ATOLL DAC 200 --> RME Fireface UFX (didier.brest)
2,3 dB (L), 2,4 dB (R). rate adj=8,8289 ppm.Corr Depth: 23,2 dB (L), 25,3 dB (R) Difference: -44,0 dBFS (L), -45,4 dBFS (R)

JDS Labs ODAC ---> RME Fireface 800 (syns)
5,3 dB (L), 5,3 dB (R). rate adj=-1,5467 ppm.Corr Depth: 23,2 dB (L), 25,5 dB (R) Difference: -43.8 dBFS (L), -45.3 dBFS (R)

Benchmark DAC2 HGC ---> Marantz PMD661 (dheming)
4,1 dB (L), 4,5 dB (R). rate adj=14,8525 ppm.Corr Depth: 23,0 dB (L), 25,1 dB (R) Difference: -43.8 dBFS (L), -45.2 dBFS (R)

ATOLL DAC 200 --> RME Babyface (didier.brest)
Rate adj=-4,3193 ppm.Corr Depth: 10,8 dB (L), 13,0 dB (R) Difference: -31,5 dBFS (L), -33,1 dBFS

For contributing to this test :
- download the test 2 x 44 kHz x 24 bit wav file (31 Mb),
- cable link the 2 DAC outputs to 2 ADC inputs,
- play back the test file to the DAC outputs and record from the ADC inputs,
- upload to mediafire or any other file sharing site the 2 x 44 kHz x 24 bit wav file from this recording and
- provide the download link here with information about ADC and DAC identities.
Your contribution is welcome even if your converter is already in the above list.
Thank you !
Old 16th November 2014 | Show parent
  #720
Lives for gear
 
funka's Avatar
 

Quote:
With the Lynx Aurora DAC and EVM4222 combination
Would you post a loop with aurora DAC and EVM4222 please, with the best clocking method (did you tried to disable synchro lock on the aurora while locking externally?...) ?
I would be interested to see the results...Thanks.
๐Ÿ“ Reply

Similar Threads

Thread / Thread Starter Replies / Views Last Post
replies: 183 views: 26007
Avatar for baikonour
baikonour 10th October 2006
replies: 362 views: 94534
Avatar for didier.brest
didier.brest 2nd December 2020
replies: 4702 views: 1236228
Avatar for dickiefunk
dickiefunk 20 hours ago
replies: 61 views: 10207
Avatar for Transistor
Transistor 21st February 2015
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and Reverb.com listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.


 
 
Slide to join now Processing…
๐Ÿ–จ๏ธ Show Printable Version
โœ‰๏ธ Email this Page
๐Ÿ” Search thread
๐ŸŽ™๏ธ View mentioned gear
Forum Jump
Forum Jump