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Audix 4B02 compressor/limiter/gate - Gearspace.com
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Audix 4B02 compressor/limiter/gate
Old 30th January 2013
  #1
Here for the gear
 
🎧 15 years
Audix 4B02 compressor/limiter/gate

Hi Guys,

Who knows about this one. A Audix 4B02 compressor/limiter/gate which probably came from a Audix B100 console. I've just bought two of these modules which I like to get going again. They're all discreet with LDR's I think and a Marinair 1448 trany on the input I think. But does anybody know anything about them. If somebody has some schematics or pinouts it would safe me a lot of time otherwise I have to figure it out myself. They will probably need 24V but that is about as much as I know until know.

Thanks in advance guys.

Marnix
Attached Thumbnails
Audix 4B02 compressor/limiter/gate-audix-compressor-noise-gate-type-4b02-2.jpg   Audix 4B02 compressor/limiter/gate-audix-compressor-noise-gate-type-4b02-1.jpg  
Old 18th February 2013
  #2
Lives for gear
 
🎧 15 years
Hi
Yes it wants 24 Volts, negative ground. The transformer is for input. The output would have driven a 1:2 step up transformer so that an overall 24dBu max signal can be maintained. The 24 Volts would give just short of +19 dBu unbalanced without the transformer.
I don't think I have the schematic for this module but the basic amplifier circuit blocks are pretty 'textbook' designs.
Matt S
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