Thank you much for your effort !

The result from your Liquid Saffire test is quite close to the the one from the Focusrite Forte. Lists of results updated herebelow.

DA-AD loops from this

wav file evaluated by means of Audio DiffMaker.

**ADDA converters**

Lynx Hilo (CoolColJ)
-0,1 dB (L), -0,1 dB (R) Corr Depth: 41,8 dB (L), 43,7 dB (R), Difference: -56,8 dBFS (L), -57,2 dBFS (R)

MOTU 2408mk3 (ram75)
0,1 dB (L), 0,1 dB (R) Corr Depth: 36,3 dB (L), 37,9 dB (R) Difference: -55,80 dBFS (L), -56,9 dBFS (R)

MOTU 24I/O (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)

MOTU 828mk2 (laurend)
6,1 dB (L), 6,2 dB (R) Corr Depth: 36,4 dB (L), 37,9 dB (R) Difference: -55.7 dBFS (L) -57.0 dBFS (R)

Mytek 8 x 192 (MainTime)
0,4 dB (L), 0,5 dB (R) Corr Depth: 35,3 dB (L), 36,9 dB (R) Difference: -55.2 dBFS (L) -56.0 dBFS (R)

Aurora 8 (cylens)
-0,085dB (L), -0,080dB (R) Corr Depth: 34,6 dB (L), 36,3 dB (R) Difference: -54.2 dBFS (L) -55.1 dBFS (R)

ESI

[email protected] XTe (

DUJS)

Corr Depth: 32,7 dB (L), 34,3 dB (R) Difference: -52,3 dBFS (L), -53,5 dBFS (R)

TC Electronics Impact Twin (AndG)
-0,432dB (L), 0,029dB (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)

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)

RME Fireface 400 (didier.brest)
0,3 dB (L), 0,3 dB (R) Corr Depth: 30,2 dB (L), 31,8 dB (R) Difference: -49.8 dBFS (L) -50.8 dBFS (R)

TC Electronics Impact Twin (Coucou)

Corr Depth: 29,1 dB (L), 30,4 dB (R) Difference: -48,9 dBFS (L), -49,2 dBFS (R)

TC Electronics 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)

E-MU 1616m, left channel only (ben)

-0,4 dB (L), Corr Depth: 28,9 dB (L) Difference: -45,9 dBFS (L)

Apogee Rosetta 800 (davidbayle)

Corr Depth: 39,7 dB (L), 41,7 dB (R) Difference: -45,9 dBFS (L), -45,8 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: -45,9 dBFS (L), -45,5 dBFS dB (R)

Echo Audiofire 4 (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)

Metric Halo ULN-2 (DownSideUp)

Corr Depth: 25,3 dB (L), 26,9 dB (R) Difference: -44,9 dB (L), 46,0 dB (R)

Universal Audio Apollo Quad (davidbayles)

Corr Depth: 26,5 dB (L), 28,0 dB (R) Difference: -42,7 dBFS (L), -43,0 dBFS (R)

RME Multiface II - Unbalanced, -10 dBV (juki, Audiofanzine)

Corr Depth: 22,7 dB (L), 24,4 dB (R) Difference: -42,4 dBFS (L) -43,5 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)

RME Multiface II - Balanced, 4 dBu (juki, Audiofanzine)

Corr Depth: 22,3 dB (L), 23,9 dB (R) Difference: -41,9 dBFS (L) -43,0 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)

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: -40.6 dBFS (L) -40.6 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)

Avid Mbox 3 (Coucou)

Corr Depth: 21,8 dB (L), 23,6 dB (R) Difference: -39,7 dBFS (L), -40,3 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)

RME Fireface UFX, XLR outputs 1-2 to TRS inputs 3-4 (didier.brest)
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)

Antelope Orion (davidbayle)

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

RME Fireface UFX, TRS outputs 5-6 to TRS inputs 3-4 (didier.brest)
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)

Yamaha Steinberg MR816X (didier.brest)
1,1 dB (L), 0,6 dB (R) Corr Depth: 19,1 dB (L), 21,0 dB (R) Difference: -38.6 dBFS (L) -40.0 dBFS (R)

Focusrite Forte (Coucou)

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)

RME Fireface UFX, XLR outputs 1-2 to XLR preamp inputs 9-10 (didier.brest)
0,5 dB (L), 0,4 dB (R) Corr Depth: 14,7 dB (L), 16,2 dB (R) Difference -35,03 dBFS (L) -36,30 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: -31,8 dBFS (L), -31,1 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
Aurora8 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)

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)

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 (DA master unless otherwise specified)**
MSB Platinum IV Plus DAC ---> MSB Studio ADC, master clock (DUJS)

Corr Depth: 62,8 dB (L), 63,4 dB (R) Difference: -77,7 dBFS (L), -77,4 dBFS (R)

ReQuest Audio, The Beast DAC ---> MSB Platinum Studio ADC (DUJS)

Corr Depth: 62,0 dB (L), 63,4 dB (R) Difference: -76,9 dBFS (L), -76,3 dBFS (R)

[email protected] XTe DAC ---> MSB Studio ADC, master clock (DUJS)

Corr Depth: 46,0 dB (L), 48,0 dB (R) Difference: -65,3 dBFS (L), -66,7 dBFS (R)

Atoll DAC200 --> RME Babyface (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.

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)

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!