Passive EQ with no make-up gain? suggestions?

Doktorfuture · 8th November 2007, 05:31 AM

I have some old passive EQ's with no make-up gain. Mostly lab instruments. I find them useful, and I like that I can add any pre-amp after to make up gain.

Are there any really nice 'high-end' totally passive (no power) EQ's people would recommend?

(or offer to sell me?)

vernier · 8th November 2007, 05:52 AM

Just the good 'ole stuff that was either built-in or external and accompanied old mixers, Langevin, UA, Cinema-Engineering.

abit · 8th November 2007, 06:20 AM

I got a couple of things recently and have to unload some.
Amek BCIII on the way, and it's not crucial for me to have as much EQ as I have.
So, 2 things on the way out:
Focusrite RED2 - not passive.
Siemmens W295b - passive, sweet .. and I'm gonna miss it..

livingstone · 8th November 2007, 09:02 AM

NEUMANN PEV .....mid 60's some of the sweetes mids and highs i've heard

PettyCash · 8th November 2007, 10:46 AM

Tube-Tech PE 1C

dubrichie · 8th November 2007, 11:39 AM

Thermionic Culture Pullet.

i haven't used it, but it's out there and it's passive.

okailla · 8th November 2007, 11:59 AM

The Siemens and Neumann are not really passive.
They are based around LC filter (like Pultecs) and buffered internally with a transistor amp. That´s why they need 24V DC.

Eckmiller W86a is fully passive with a loss of 34dB. One of the V72 purposes was to make up the gain after the Eq.

Gearslutz member Reptil once had a pair for sale, btw

abit · 8th November 2007, 05:44 PM

It feels like a passive..

But agreed.
No gain loss.

How about Pultec filter HLP-5C?

NathanEldred · 8th November 2007, 06:48 PM

Quote:

Originally Posted by dubrichie

Thermionic Culture Pullet.

i haven't used it, but it's out there and it's passive.

This looks promising (haven't heard it but I know they make nice gear).

Doktorfuture · 8th November 2007, 09:39 PM

Thank you all. I'll check out the Pullet (looks cool), and Eckmiller W86a. Any others?

Cheers and thanks,

Paul

Quote:

Originally Posted by okailla

The Siemens and Neumann are not really passive.
They are based around LC filter (like Pultecs) and buffered internally with a transistor amp. That´s why they need 24V DC.

Eckmiller W86a is fully passive with a loss of 34dB. One of the V72 purposes was to make up the gain after the Eq.

Gearslutz member Reptil once had a pair for sale, btw

djimbe · 9th November 2007, 12:10 PM

Quote:

Originally Posted by okailla

Eckmiller W86a is fully passive with a loss of 34dB.

Gearslutz member Reptil once had a pair for sale, btw

I bought them. Reptil was a great guy to do business with and the EQ's are very nice. They're highpass/lowpass based around 100Hz and 10kHz. The build quality is stunning on those things.

Another that hasn't been mentioned is the Spectra Sonics 500. I have a pair of those too. You can select from 4 different frequencies or OFF for both sides of those modules.

The Eckmillers are not as colored (or maybe less obtrusive) as the Sprectra Sonics...

Silvertone · 9th November 2007, 01:01 PM

Quote:

Originally Posted by Doktorfuture

Thank you all. I'll check out the Pullet (looks cool), and Eckmiller W86a. Any others?

Cheers and thanks,

Paul

Electrodyne 251A, Langevin 250 or 251 & Cinema Engineering 4031B. Altec also come to mind but I can't remember the numbers. Also early Universal Audio EQ's and Quad Eights (in fact a rack of 5 high and low passive EQ's from Wally Heiders old Q8 console just went off on ebay with no bids so watch for them to come up again).

Good luck, I love inductor based, passive EQ's myself and own about 35 to 40 channels of them, but most are attached to mic pre's and have the op-amp for make-up gain in place already.

Reptil · 9th November 2007, 01:01 PM

Quote:

Originally Posted by okailla

The Siemens and Neumann are not really passive.
They are based around LC filter (like Pultecs) and buffered internally with a transistor amp. That´s why they need 24V DC.

Eckmiller W86a is fully passive with a loss of 34dB. One of the V72 purposes was to make up the gain after the Eq.

Gearslutz member Reptil once had a pair for sale, btw

yep, sold it. It found a happy new home - nice to see you like them Djimbe!

I'm keeping the other pair I have. (W86 with sliders) they sound amazing. gold alloy (not gold plated) switches etc. Clearly cost was not an issue when these were made. they're getting scarce now. I'm lusting for a DW Fearn or simular, for makeup gain. someday....... what do you use for make up gain Djimbe?

FYI the Gyraf stereo eq is also passive, with a tube gain up amp stage.

psycho_monkey · 9th November 2007, 03:28 PM

Quote:

Originally Posted by PettyCash

Tube-Tech PE 1C

not passive - at least, it has makeup gain and powersupply built in, so it doesn't need to be followed by a mic amp.

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8th November 2007, 05:31 AM	#1
Doktorfuture Gear maniac Join Date: Sep 2006 Location: Canada Posts: 209	Passive EQ with no make-up gain? suggestions? I have some old passive EQ's with no make-up gain. Mostly lab instruments. I find them useful, and I like that I can add any pre-amp after to make up gain. Are there any really nice 'high-end' totally passive (no power) EQ's people would recommend? (or offer to sell me?)

8th November 2007, 05:52 AM	#2
vernier Lives for gear Join Date: Mar 2006 Posts: 3,587	Just the good 'ole stuff that was either built-in or external and accompanied old mixers, Langevin, UA, Cinema-Engineering. __________________ http://www.myspace.com/learstevens

8th November 2007, 09:02 AM	#4
livingstone Gear addict Join Date: Dec 2005 Location: Belgium // Brussels Posts: 330	NEUMANN PEV .....mid 60's some of the sweetes mids and highs i've heard __________________ no time________________no sound Frederic Alstadt Ångström mastering :::::::: mastering for the alternative

8th November 2007, 11:39 AM	#6
dubrichie Lives for gear Join Date: Nov 2005 Location: Dublin, Ireland Posts: 1,015	Thermionic Culture Pullet. i haven't used it, but it's out there and it's passive. __________________ regards, richie. "a paradigm of restraint and good taste at a time of frequent excess"

8th November 2007, 06:20 AM	#3
abit Lives for gear Join Date: Apr 2005 Location: NY Posts: 799	I got a couple of things recently and have to unload some. Amek BCIII on the way, and it's not crucial for me to have as much EQ as I have. So, 2 things on the way out: Focusrite RED2 - not passive. Siemmens W295b - passive, sweet .. and I'm gonna miss it..

8th November 2007, 10:46 AM	#5
PettyCash Lives for gear Join Date: May 2007 Posts: 1,539	Tube-Tech PE 1C

8th November 2007, 11:59 AM	#7
okailla Gear maniac Join Date: Oct 2004 Location: Waterkant Posts: 152	The Siemens and Neumann are not really passive. They are based around LC filter (like Pultecs) and buffered internally with a transistor amp. That´s why they need 24V DC. Eckmiller W86a is fully passive with a loss of 34dB. One of the V72 purposes was to make up the gain after the Eq. Gearslutz member Reptil once had a pair for sale, btw

8th November 2007, 05:44 PM	#8
abit Lives for gear Join Date: Apr 2005 Location: NY Posts: 799	It feels like a passive.. But agreed. No gain loss. How about Pultec filter HLP-5C?

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