Multi-purpose, multi-function mixer/power amplifiers specifically designed for maximum versatility and cost-effective high-performance are ideal units for any PA requirement in locations such as shops and offices and other small to intermediate sized environments. A choice of different power outputs are offered as well as as paging override of BGM. The mixer power amplifier shall operate on AC mains or 24 V DC power, and shall control and mix 3 balanced (1 5-P DIN type and 2 phone jack inputs) MIC and 2 unbalanced (RCA pin jack) AUX inputs. Speaker outputs shall be balanced (floating) high impedance and low-impedance, and there shall be a low impedance REC out. The amplifier shall meet the following performance criteria: Power output shall be 30 W at less than 1% THD (at 1 kHz, 1/3 rated power). Frequency response shall be 50 Hz to 20 kHz (+/-3 dB), with an S/N ratio of over 60 dB. Phantom power (DC +21 V) and muting (of other input signals by 0 – 30 dB attenuation) shall be available for MIC 1. Bass Tone Control shall be +/-10 dB at 100 Hz, and Treble Tone Control shall be +/-10 dB at 10 kHz. Power, signal and peak indicators shall be provided. The panel shall be ABS black resin, and the case black steel plate. Dimensions shall be 420 (W) x 100.9 (H) x 280.3 (D) mm and weight is 5 kg.