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Ha...I dug through the archives and found this (see below). I did as Kim suggested (more input, less output) and now I'm getting much better performance. It makes sense to me now. Learn something new everyday... Thanks to everyone for your input. Tom http://www.loopersdelight.com/LDarchive/200406/msg00558.html From Kim Flint to Jesse Lucas..... At 02:48 PM 6/25/2004, Jesse Ray Lucas wrote: >Tell me that my gain staging is wrong, but it doesn't matter if I go >direct >in, or through a preamp. I've can have a healthy green light on the input >signal indicator and the output cranked up, but the loops always seem to >have mad hiss to them. probably your gains are set wrong. Turn the input up higher, and the output lower to compensate. If it isn't clipping or the limiter isn't obviously kicking in, you have more headroom to use. Make sure you are using the loop path for setting gains, as it has less dynamic range than the direct. If you don't use the full dynamic range, the noise floor ends up sounding relatively louder. That is probably what you are experiencing. >Not the direct signal, just the loop playback. The digital path (of anything usually) has less dynamic range than the analog path, and so will have a higher relative noise floor when compared to the analog path. kim Jesse Lucas wrote: > Tom Combs wrote: > >> Well, with nothing plugged into the input, and the input level set to >> minimum, where is the possibility of improper gain staging on my >> part? The output of my EDP goes directly into a Mackie 1202-VLZ >> Pro. If there were a gain problem associated with the output stage >> of the EDP, then I'd expect to hear the hiss when a loop is not >> playing.. > > > I'm just passing on the answers which were handed to me before. Not > saying I believe them or anything. > > You learn to live with it, or you move on and find something else that > works for you. > > I have a preference for dirty sound, so incorporating the EDP's hiss > wasn't that big a deal for me. Still, sometimes it would be nice if > it was clean. > > -J >