TOA Electronics BG-220 CU 3 Channel Amplifier and Mixer; 20W; 50Hz-20kHz Frequency Response; 2x Line Inputs with RCA Inputs; Recessed Bass and Treble Control; Black The TOA BG-220 Amplifier provides 20 watts of power to 4 ohm, 25 and 70V speakers in installed sound applications, the amplifier features a line / mic switchable input, and 2 line inputs with individual volume control and recessed treble and bass controls. Amplify background music in restaurants, commercial retail spaces, bars and more; the TOA BG-220 features removable terminal block connectors and is ideal for amplifying audio in a specific zone, or as the main amplifier in any commercial sound / paging audio system Key Features -All inputs and outputs on removable Euro-block connections for easier installation -3x Inputs: Mic/Line 1 w/ Balanced phoenix input and Manual Mute Trigger; Line 2 w/ phoenix & RCA summing connector; Line 3 w/ phoenix & RCA summing connector -Input 1 selectable between Mic/Line input level -MOH/Zone2 balanced line output assignable via rear-panel dip switches -Mute receive assignable for channels 2 and 3 on rear-panel dip switches Specifications: -Power Source: 120 V AC, 60 Hz -Rated Output: 20W -Power Consumption: 60 W (rated output), 36 W (based on cULus standards) -Frequency Response: 50 Hz - 20kHz -Total Harmonic Distortion: 0.5% or less, at 1 kHz, rated output -Output Regulation: 2 dB or less, no load to full load (1k Hz) -Tone control: Bass: +/-10 dB at 100 Hz, Treble: +/- 10 dB at 10k Hz -Indicators: Power LED, Signal level LED, Peak LED -Operating Temperature: 0 deg. C to 40 deg. C (32 deg. F to 104 deg. F) -Finish Panel: Panel: ABS resin, black/Case: Steel plate, black, paint -Dimensions: 8.27 x 3.71 x 10.43" / 21 x 9.42 x 26.49cm -Weight: 3.5 kg (7.72 lbs)