Avalon U5 Mono Instrument and DI Amp with 6 passive tone-EQ curvesThe U5 high voltage DI preamp combines a unique passive tone selector with a variable gain preamp and filter. The high input impedance accepts a wide variety of signal levels and instruments from acoustic guitars to high output active bass guitars and keyboards. The U5 direct box is loaded with sonic character and user features professionals demand. FEATURESPure Class A, 100% discrete designSmooth musical detail and sonic excellenceVariable gain