The AG30 has the pro quality tone and workmanship that all Ultrasound amps are famous for. Don't let it's compact size fool you, the AG-30 has plenty of power for small venues and with its Line/Direct outs, it can easily be patched into any sound system for larger venues. It's optimized for piezo pickups and features active bass and treble EQ, mid-dip shape control, sweepable notch filter to eliminate acoustic feedback, EFX loop, headphone out, line out, and XLR out for DI.