Special Features:

Keyboard amplifier; special two-way coax speaker system; 12 inch woofer with a 1 inch compression tweeter; dome tweeter; sealed enclosure; 50 watts rms; ddt circuitry; metal output devices; hum and noise rating greater than 90db below rated power; power amp input and preamp output jacks; two channels with high and low gain inputs 1/4 inch jacks; gain switch allowing 12db input; four band global equalization; front panel knob panel with direct and angled views; effects insert; internal reverb for older keyboards or acoustic instruments; three position ground lift switch; headphone jack

Properties:

An electronic device whose audio frequency input signals control power from a source independant of the input signal and delivers audio frequency output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It operates at frequencies of 20 kilohertzs and below. It may or may not have signal switching capabilities.