Bogen's Power Vector Series Mixer Amplifier modular amplifier is designed to work with both high- (70/25V) and low- (4/8-ohm) impedance speaker systems. It offers varoius power settings, with five models ranging from 35W to 250W. An 11-segment LED output meter monitors output signal level. Each model includes a motorized master volume control that can be operated via a remote volume control panel (RVCP, sold separately).