Okay, this may be one of those "try it and see" questions like the ZOOM one, but I don't know too much about what preamps are and what they do, and just want some clarity as to exactly what I'm doing. I bought 2 ART tube MPs, having known that the point of having them is to improve the quality of my recordings, and that when used, "it's like pulling cotton out of your ears." Having only two ART tube MPs, I need to record my drums, which I'm using four mics for. I have a mixer/four track, and what I do is record all four mics on their own track, then mix down to my computer (cakewalk). I was wondering, instead of using the preamp on only two mics, can I use it during mixdown? what I would do is plug the left and right into the two inputs of the two ART pres and then the left and right outs into my soundcard. (to preserve stereo!) Question is, what will this do to what I've recorded? And if this won't achieve improving the sound quality (which is why I bought the ARTs), I will have to use them on only two mics. I have an AKG C1000S and SM57 for overhead, an SM57 for snare, and an AT-25 for kick. Which ones should I pick?