Soeren_DK

Eckmiller W86a EQ
« on: November 15, 2008, 05:55:06 PM »
Someone here knows something about this Eq modul?
Maybe some pinout diagrams? Or help to understand the diagram in the diagram? Should it be powered
I have bought 3 of those but haven't tried them out yet so I don't know if they will work as a master EQ low and high.

Diagram can be found here:
http://mentol.dk/diy/upload/eckmiller_w86a.pdf
http://mentol.dk/diy/upload/eckmiller_w86a.jpg
...I do not speek german very well. :-\

Cheers friends ;D
Soeren Sailor
« Last Edit: November 15, 2008, 06:00:43 PM by Soeren_DK »
Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub


Re: Eckmiller W86a EQ
« Reply #1 on: November 16, 2008, 04:57:19 AM »
Balanced input and balanced output. It is passive, so no power required. But you need 34 dB (if I remember right) amplification after the eq. You can test it by using a mic amplifier. It has balanced input and provides the needed gain.

[silent:arts]

Re: Eckmiller W86a EQ
« Reply #2 on: November 16, 2008, 05:02:58 AM »
passive with 34dB insertion loss is right. originally you put a V72 after the Eckmiller, but a VX72 will work fine too.

Soeren_DK

Re: Eckmiller W86a EQ
« Reply #3 on: November 16, 2008, 06:05:40 AM »
passive with 34dB insertion loss is right. originally you put a V72 after the Eckmiller, but a VX72 will work fine too.
Thanks ;D
What is a V72? Something DIY I can build?
I have a plan putting them in a rack case and mayby it would be posible to build a preamp in the case as well.
How is the sound in them?
Is it worth spending a rackcase, frontpanel and maybe a preamp on?

Cheers mates
Soeren Sailer
Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub

Re: Eckmiller W86a EQ
« Reply #4 on: November 16, 2008, 09:36:27 AM »
I think V72 (antique German broadcast amp) is quite expensive alternative...

Using these as mastering equalisers is problematic because of their high insertion loss. It means that the output noise level is also high (after the amplification).

If you want lowest possible noise, the best modern alternative is to connect a mic preamp after the eq (set gain to 34 dB). You can find examples of two-transistor-one-opamp mic preamps on this forum.

Connecting the eq:
pins 1 and 2 = balanced input
pins 7 and 8 = to mic pre input
pin 5 = signal ground

Soeren_DK

Re: Eckmiller W86a EQ
« Reply #5 on: November 16, 2008, 10:24:51 AM »
Damn it.  ???
Why am I never lucky. I thought this old equipment always was a good deal. dooh.
I have an Great River MP-2NV I will put it through and listen to it tomorrow..

Thanks for the help.
Cheers
Soeren Sailor
Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub

synthi

Re: Eckmiller W86a EQ
« Reply #6 on: November 17, 2008, 05:07:02 AM »
No... You are VERY lucky, those eqs sounds awesome.

Also try the amplification before the eq, not just after the eq! for a different character (inductor saturation)

 ;)

Synthi

Re: Eckmiller W86a EQ
« Reply #7 on: November 17, 2008, 05:18:17 AM »
Synthi is right. They are good for mastering (accurate and repeatable curves, very high build quality etc.) if you can live with the relatively high noise. In some cases there is too much noise, in some other not. It depends on your application (type of music).

Joechris

Re: Eckmiller W86a EQ
« Reply #8 on: November 17, 2008, 05:32:04 AM »
Besides the V72, what kind of makeup amp do you folks use? This will for shure affect the final flavor.
musicians vary +/-9dB depending on mood, drugs, and line-voltage. (PRR)

synthi

Re: Eckmiller W86a EQ
« Reply #9 on: November 17, 2008, 06:48:28 AM »
yes, the amp will have a imprint on the sound, and thats something desirable 8at least for me). I used almost every preamp I have (try it!), but usually when I go for thick and clean I put a neumann V476 after the w86, and for fat coloured a Telefunken V672, before or after the eq, to taste. I also tried using V74s and sound is great!

Synthi


Soeren_DK

Re: Eckmiller W86a EQ
« Reply #10 on: November 17, 2008, 07:57:02 AM »
Normally I make New York sounding hiphop so noise is not so harmful at all ;)

But I tried them yesterday with the Great River preamp after the eq AND Woav. They sounded very well. A warm and harmonising sound...  :D ;)
There was some noise but not enough to provoke me.
When I turn the knobs I can hear some crackle. Mayby some Cleaning spray could help. In danish we call it Switch cleaner(Direct translated).
Should the cleaning spray be with oil og not?

Best regards
Soeren

Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub

Soeren_DK

Re: Eckmiller W86a EQ
« Reply #11 on: November 20, 2008, 03:46:38 AM »
Anybody got a Front Panel File with 2 EQ in a 1U?

Cheers
Soeren
Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub

Michael Tibes

Re: Eckmiller W86a EQ
« Reply #12 on: November 20, 2008, 06:35:26 AM »
When I turn the knobs I can hear some crackle. Mayby some Cleaning spray could help. In danish we call it Switch cleaner(Direct translated).
Should the cleaning spray be with oil og not?

I'd be very careful with cleaning sprays. Some can be very agressive and might do more harm than benefit. If there are no contact-problems when you aren't switching I'd leave it alone or clean the contacts with a cotton stick if necessary. Some switching noise might actually be normal.

Michael

Soeren_DK

Re: Eckmiller W86a EQ
« Reply #13 on: November 22, 2008, 09:39:35 AM »
When I turn the knobs I can hear some crackle. Mayby some Cleaning spray could help. In danish we call it Switch cleaner(Direct translated).
Should the cleaning spray be with oil og not?

I'd be very careful with cleaning sprays. Some can be very agressive and might do more harm than benefit. If there are no contact-problems when you aren't switching I'd leave it alone or clean the contacts with a cotton stick if necessary. Some switching noise might actually be normal.

Michael

Thanks for the info Michael..

Anybody got a .fpd flie for theese moduls

Best regards
Soeren
Quote from: idylldon
...it works like a champ and is as quiet as a mouse pissing on a cotton ball.

http://www.soundcloud.com/doctorsclub


 

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