OK, so this may be dumb but here goes. I have a focusrite saffier pro 40 and I'm getting the ISA one. I'm wondering if I get an analog mixer will I be able to run output from the Mic pre to an auxiliary send on the mixer, then to the channels I deem fit. From that point run each channel out into the pro 40 interface. I'm asking because I'd like to be able to use the ISA on my drum kit, but a little held back by 1 channel. Its probably a dumb question.... actually, I'm pretty sure its a dumb question. But even if so... is there anyway to utilize the preamp to get it on more than 1 drum?