Updated for 2009, this compact, powerful combo now includes 48V phantom power, feedback control and phase reverse. It has two channels (one of which accepts a mic input) so you can use two pickups, two instruments, or an instrument and a microphone! Bonus: onboard digital reverMarkacoustic amps and combos are designed for all acoustic instruments including acoustic bass, acoustic guitar, mandolin, violin, cello, banjo, etc. b and chorus.