dual mic-preamp, tubes, giving warm, rich atmo to your digital recording. very good for mastering too. • hand selected premium 12au7 vacuum tubes in path • mic or line/instrument inputs on the preamp. +4/-10 operation • drive control for a wide variety of great tube effects • peakplus® limiting control • 3-band eq with sweepable frequency, wide/narrow q and hardwire bypass • separate 1/4" insert send and return on the preamp • custom designed analog vu meters monitor tube drive, insert level, gain reduction, or output levels