Boss Acoustic Singer Pro Acoustic Amp (ACSPRO) Hollow & Semi-Hollow Body Expandable audio I/O modules are

Expandable audio I/O modules are being developed to include pre amp

it also reduces susceptibility to noise from external magnetic fields

The amazing Octapad

from a mild boost for driving amps and pedals to full-throttle gain for monster rock riffs

Boss Acoustic Singer Pro Acoustic Amp (ACSPRO) Hollow & Semi-Hollow Body Expandable audio I/O modules areThe Acoustic Singer Pro takes the acoustic stage amp to new levels of sound quality and creative versatility. Incorporating BOSSs latest advancements in amplifier research, this compact powerhouse produces rich, vibrant sound with unmatched punch and clarity. Independent channels are provided for acoustic guitar and vocal, and each is equipped with discrete analog input circuits and three band EQ for studio quality sound. And with additional features