FEATURES: . 17 Volt, high-headroom, discrete Class-A preamp . 5-band tone control with sweep-mid & low frequency filter . EQ mode tailors EQ for bass or most other instruments . Phase control and precision notch filter reduces feedback . One-knob adjustable compressor smooths playing dynamics . I ntegrated fully-chromatic digital tuner . Volume boost foot switch with level control (+12dB) . Balanced XLR D.I. with pre/post EQ setting and ground lift SPECS: . TONE SHAPING: 5-band EQ with Sweepable Mid, Adjustable Low-cut Filter . FEEDBACK CONTROL: Sweepable Notch Filter and Phase Invert switch . DIMENSIONS: 6.2" x 5.6" x 2.2" (158mm x 143mm x 54mm) . POWER: 9 Volt battery (not incl.), Fishman: 910-R AC adapter (opt.) AUDIO IO: . 1/4" instrument input . 1/4" Amp output . XLR Balanced D.I. output with Ground Lift switch