Soeren_DK

API preamp ft. Eckmiller w86a
« on: October 20, 2009, 04:57:15 PM »
API preamp ft. Eckmiller w86a
I want to share this project with you. I did this for a while ago but it's still a funny Master EQ with an API preamp


Soundsample
Without the preamp and EQ
http://www.mentol.dk/diy/eckmiller/without_eckmiller.wav

With the preamp and EQ (3db shelf lift at 10kHz)
http://www.mentol.dk/diy/eckmiller/with_eckmiller.wav


Schematic
http://mentol.dk/diy/upload/api-clon.gif
Layout
http://mentol.dk/diy/upload/api.gif








Cheers
Soren
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


clintrubber

Re: API preamp ft. Eckmiller w86a
« Reply #1 on: October 20, 2009, 05:05:04 PM »
Nice composition that alu-panel vs the golden knobs with black in between !  :)

Where did you got that alu from ?

helterbelter

Re: API preamp ft. Eckmiller w86a
« Reply #2 on: October 20, 2009, 05:15:21 PM »
Am I having a deja-vu ?!?!?  ???

If not, it's beautifully built, yeah !.

But I'm damn sure I've seen this one before. As a matter of fact, this eq inspired me to build a Pultec with an ASV 18tr (dannerstyle transistor summing amp). Mine's not finished yet (no frontpanel ordered yet).
But this very API/Eckmiller was the origin !!!

Soeren_DK

Re: API preamp ft. Eckmiller w86a
« Reply #3 on: October 20, 2009, 05:21:04 PM »
Nice composition that alu-panel vs the golden knobs with black in between !  :)

Where did you got that alu from ?
The Alu is from Schaffer.

Quote
Am I having a deja-vu ?!?!? 
:) :) :)
Maybe from the Danish diy forum. I can't remember I have post it here before.

Cheers
Soren
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: API preamp ft. Eckmiller w86a
« Reply #4 on: October 20, 2009, 05:23:19 PM »
Hehe. Sorry.. I have post it here before... GREAT job Soren... Thats what I call memory problems...
Very embarrassing... :-[ :-[ :-[ :-[ :-[ :-X
Sorry again...

Cheers
Soren
« Last Edit: October 20, 2009, 05:27:50 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

helterbelter

Re: API preamp ft. Eckmiller w86a
« Reply #5 on: October 20, 2009, 05:33:55 PM »
Haha !

You can never show this enough though !

And the sound is wickedly smooooooth. Nice !

Re: API preamp ft. Eckmiller w86a
« Reply #6 on: December 28, 2009, 01:42:08 PM »
Very nice design!

Correct me if I'm wrong but did you connect the W86 output directly to the API input?
Is it connected so that there's an Eckmiller output trafo and an API input trafo in-between the two modules?
If I'm correct that makes a total of four signal trafos per channel.

I was wondering if it's possible and maybe a better option to short cut the Eckmiller output before de trafo with the API input after de input trafo.
I don't know if impedances match at that point.

Nut I'm very curious what you people think of my brainwave :)


best regards,



Matthew


 

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