I got mine secondhand on Ebay and didn't know what to expect. Each channel has its perks. Channel one goes from clean to crunch and the second channel goes from clean to heavy distortion. The EQ on each channel works well as does the spring reverb. Does everything I need it for. Only minor complaint is that Channel 2 is much louder than Channel 1.
Controls: Channel 1 - Master, Crunch, Bass, Treble; Channel 2 - Master, Gain, Bass, Middle, Treble; Reverb, Aux in, Headphone Out
Other: 4 ohm min. speaker out, spring reverb unit, effects send and return