Discrete, high-headroom 17V Class A analog preamp for acoustic instruments, 5-band tone control with sweep-mid and crossover frequency, EQ mode that tailors the EQ for bass or other instruments, phase control, and precision notch filter reduces feedback, adjustable one-knob compressor smooths playing dynamics, onboard fully chromatic digital tuner, volume boost footswitch with level control (+12 dB), balanced XLR DI with pre/post EQ adjustment and ground lift, powered by 9V battery (not included) or Fishman 910R power adapter (optional), battery life: 30 hours, dimensions: 158 x 143 x 54 mm, weight: 0.64 kg.