BOSS AD-10 Acoustic Preamp & Multi Effects PedalProfessional preamp DI for performing and recording with acoustic electric guitar Acoustic Resonance restores the warm and rich resonance lost with most pickup systems Four band EQ and variable low cut filter tuned to deliver optimized tone shaping for acoustic guitar Multi band compressor with MDP technology provides transparent dynamics control Newly developed anti feedback functions control feedback while maintaining balanced tone Two channels with