Rockville PPA20 Home Audio Preamp Pre-Amplifier w/Crossover+EQ
Rockville PPA20 Professional 1U Rack Mount Pre-Amplifier with EQ and Crossover. How to Set Up Your PPA20 Rockville PPA20 Rack Mount Pre-Amplifier. 3 band EQ (Treble / Mid / Bass). 1/4" microphone input.