[Wayne A. Pflughaupt]

Yeah, it'll work, depending on what you're trying to do with it. Naturally if you're taking front of house measurements, you'll have to keep the other mics muted; otherwise they'll all be feeding a signal to REW via the USB. Might want to keep any other channel you have something plugged into muted as well, in case they're adding residual noise. Direct feeds from backline amps can be noisy, as you probably know...

I assume for "EQing monitors" you want to EQ for feedback, which means the stage mics need to be active. Typically the monitor signal is fed from an Aux send, which is isolated from the main output. But muting the mic channels (again for the purposes of letting the ECM 8000 feed REW) would mute them in the monitors as well; an easy work-around would be to simply pull the main sliders all the way out, all but the ECM 8000's channel.

Naturally, if you intend to use REW as an RTA during a performance, you should probably use a separate sound card...

Note any deficiency in the mic preamp won't be included in the soundcard cal routine...

That can't be accomplished by looping the mixer's XLR output to an XLR input?

Regards,
Wayne

 

[Wayne A. Pflughaupt]

Okay, I see what you mean. I think maybe you're thinking of the common REW set up using a mixer like the Behringer Xenyx connected to a soundcard?

In this case, the Peavey mixer is the sound card, since it has a USB output. So the in/out loop is XLR, and by default will include the mic pre amp.

The only potential problem I can see (and I'm just speculating here) is if REW expects to see a line level signal for soundcard calibration. If so that could be a problem because in the calibration loop for a mixer like the Peavey, the signal level is variable, giving the wide range of adjustments available between the input gain knob on the channel strip and main output slider. IOW, if REW expects a certain signal level for the soundcard calibration, matching that level with the Peavey could be a challenge.

Maybe John can check in and let us know something about this.

Regards,
Wayne