Professional acoustic amplifier with premium sound and features 120–watt bi-amp design with custom-designed 8-inch woofer and dome tweeter Dual channels with discrete analog input electronics and three-band EQ Dedicated guitar channel with Acoustic Resonance to restore natural tone to stage guitars with piezo pickups Mic channel with phantom power and ¼-inch/XLR combo input for connecting a vocal/guitar microphone or second instrument source Chorus effect on guitar channel, delay/echo effect on mic channel, and independent reverb on both channels Harmony function automatically creates smooth and accurate vocal harmonies via real-time key/chord analysis of the guitar input Built-in looper for practicing, developing ideas, and enhancing live performances Independent anti-feedback controls on each channel Dual XLR DI jacks assignable to outputting individual channels (direct or post-effects) or both channels mixed together