Aphex Aural Exciter (104) internal trim-pots, What do they do?

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Eliani

Well-known member
Joined
May 27, 2011
Messages
244
Location
Belgium
Hi, this being my first topic here, i'll have a quick introduction...
I'm a 31 years old Belgian audio-engineer for over 12 years, now working in a recording studio, but I still do a lot of live performances.
I've just completed my first real project, a Gyraf SSL-compressor. I've got to say it works great! Used it yesterday for a live gig.

Enough with the socializing!
I've got this Aphex Aural Exciter type C with big bottom(104). Just got it last week, had a pink noise like sound coming from the right output. Traced it back to the side-chain part of the device, replaced the 5532 op-amp, works like a charm now, only cost me 80 cents. Now I've spotted those trim-pots in the big-bottom part of the thing, and the two channels did not match up. So now I'm looking to find what they do, and how to set them. When turning them when the music is on, it seems like a threshold, or timing pot, maybe attack and release? I can't find the original 104 circuit on the net, so I can't check what they do...

Anybody here who thinks he knows the answer?
 

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