It has a tri-way configuration with 1/2 channels as an option, variable gain control, MOSFET Pulse Width Modulated Power Supply, built in variable subwoofer crossover, RCA low level inputs, high level low impedance MOLEX input connector, a signal/noise ratio of 90dB, a THD less than 0.04%, a speaker output terminal strip, short circuit protection, power on LED indicator, and a LED diagnostic condition indicator. The Audio PLAM2300 has 9.84 inches in length, 9.76 inches in width, and 2.26 inches in height.