Wayne A. Pflughaupt· Super Moderator
The mixer can (and should be) calibrated with the soundcard if it’s connected to it.This got me thinking about my REW setup. You know that we calibrate the sound card within REW. We also use calibration files for our microphones. But what about the preamp mixer?? how does that influence the test results? Unless I missed something, there is no way of knowing the influence of this device.
It shouldn’t be a problem, as all that would be compensated for with the calibration file. But it certainly wouldn’t hurt to streamline the signal chain. Personally I’d prefer a mixer where the aux send has a pre/post fader option. The former setting would bypass all tone controls and filters.I use the Behringer XENYX 802 Mic Preamp. It has all kinds of adjustments for the manipulation of highs mids and lows. They're on reostats and we know how those can break down.
Another option is a USB soundcard with a built-in mic pre-amp and phantom power. The Galaxy is a good option, as long as you keep in mind that for full range measurements, its larger mic element will be more directional than a mic like the ECM8000.I've been thinking about getting the Galaxy CM-140 microphone primarily to help eliminate the clutter. Now I'm thinking it might would have the added benefit of having a calibration file that take into consideration the preamp function.