rrrabuyvsvsveytfazersurdwarubawvev0% Interest for 36 Months! Learn more »
(800) 222-4700
  • Español: (800) 222-4701
July 4 Financing

Sweetwater Forums [Archived]

After 15 years of great discussions, the Sweetwater Forums are now closed and preserved as a "read-only" resource. For discussions about current gear, check us out on Facebook, YouTube, inSync, and our Knowledge Base.

Need hookup help with new compressor!


Hey all,
I have a Soundcraft EPM8 board for DJ and small duo gigs: http://www.sweetwater.com/store/detail/EPM8/
I have recently added a dbx 160a compressor: http://www.sweetwater.com/store/detail/160A
I want to use the compressor to level out singers and drunk best men at the weddings I DJ at, but need to do so on up to 3 mics at a time. Is there any way to do this on this board?
I don't want to compress the entire mix (guitars or DJ music), just the vocals. I've heard of people plugging in effects to an unused channel and using aux sends or something like that, but I'm not sure how to do that, or if it can be done on this board.
Thanks for your help!
February 17, 2012 @11:59pm

Pan all the instruments to the left, and vocals to the right.
Connect one channel of the compressor to the right main out's insert jack.
Sum the left and right outputs via a balanced summing box such as is described here: http://www.rane.com/note109.html
Send the output of the summing box to the PA.
February 20, 2012 @07:37am

Or without buying anything extra, you could just do what you had heard. For the vocals that you want compressed, leave their faders all the way down but turn up their Aux1 knobs. Connect the Aux1 send to the compressor's input, and connect the compressor's output to some other channel's input. On the channel that you used for the compressor's output, be super careful not to turn up its Aux1 knob or you'll get nasty feedback... only use its fader. Also, you'll need to set Aux1 to "pre" mode -- the button closest to the headphone volume knob.
EDIT: I noticed that this thread has gotten a ton of views, so presumably a lot of people are taking this advice. Actually, I don't know that I've ever done what's described above. I -- and most others -- would use insert jacks for serial processing, but the issue here is that the EPM8 doesn't have channel or group inserts. Parallel processing (aux sends) is more useful when you do want the original signal mixed in (faders up, not down as described above) as with time domain effects like reverb.
February 23, 2012 @06:13am