Fishman PRO-PLT-201 Platinum Pro EQ/DI Analog Preamp w/Bonus RIS Picks (x3) 605609152466 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