I burned out my op amps on my dl1608, yep all 3 are shot. It is about a $250 repair. In my band we only use 2 monitor feeds and they are really simple. The guitar wants his vocal only and the lead singer wants his vocal only. I am thinking of just running their mics through their powered monitors in and through to the board. I have older Mackie 450s. 1) is their enough preamp in the 450s to amplify the mic level? 2) will the pass through degrade the signal to the board? My other alternative off the top of my head is to split the feed with a y and send one to the board and the other to a very small mixer and send the mixer feed to each monitor. Any thoughts?