SubA500 The subwoofer amplifier is the result of many years of research and development dedicated to producing powerful, accurate bass in home audio systems. This manual contains operating procedures and specifications. We recommend you thoroughly read through the material contained in this manual before connecting your amplifier. This will ensure you have an understanding of how to setup and operate your amplifier for optimum performance. The SUBA500 subwoofer amplifier is a high performance, class D subwoofer amplifier capable of delivering a minimum of 250W/500W of clean power at 4 ohms. It uses sound processing technology which allows you to tailor the performance of the subwoofer to better match the environment in which it is installed. Both amplifiers feature a large LCD display as well as a turn-and-push controller for DSP configuration. On the front panel there are indicators for power and standby, clipping and signal presence. Your subwoofer amplifier is the result of many years of research and development dedicated to producing powerful, accurate bass in home audio systems. This manual contains operating procedures and specifications. We recommend you thoroughly read through the material contained in this manual before connecting your amplifier. This will ensure you have an understanding of how to setup and operate your amplifier for optimum performance. Technical Specifications:- Type of amplifier High efficient class D; Type of power supply High dynamic toroidal transformer Maximum output power 500w (RMS @ 4Ω) Total harmonic distortion (THD) < 1% Customized presets of mode up to 4 modes Equalization 10 bands / adjustable (-6 to +6 dB) Adjustable crossover 40 to 160 Hz; increment of 1 Hz Slope of crossover 12 to 36 dB / Octave Line-in sensitivity 190 mV Phase control 0 to 315° / 45° per increment Audio-trigger sensitivity 3 mV at 50 Hz Auto-off delay time 5 to 30 minutes (adjustable) External trigger DC 12V Thermal protection function yes Night mode (auto-level-compress) yes Remote control IR; handset provided Firmware upgrade USB / type B Weight 16 Lb / 7.3 Kg Rack-mount hole Horizontal line : 18.3” / 465mm Vertical line : 1.18” / 30mm Dimension (w/o rack-mount) Width: 17.12” / 435mm Height: 1.75” / 45mm Depth: 10.38” / 264mm Dimension (with rack-mount) Width: 19.00” / 483mm Height: 1.75” / 45mm Depth: 10.38” / 264mm Fuse AC 120V: 5A AC 240V: 2.5A