This Black Series subwoofer amp gives passive subwoofers up to 300 watts of power so you can experience all the crashes, crunches and car chases with spine-tingling exhilaration. Designed for use with higher wattage passive subwoofers such as in-wall subs that require external power, the Black Series 300W mono subwoofer amplifier provides stable power and enhances the low frequency sound effects.
Features:

• Low-level, high-level, and LFE inputs
• Mono Class AB output stage for solid, well defined output
• Manual, auto, or triggered on/off modes for integration into any automated system
• Selectable bass boost; 25Hz to 50Hz up to 12dB Gain at selected point
• Draws less than 1 watt in stand-by mode
• Heavy-duty steel chassis with brushed aluminum faceplate
• Adjustable phase, gain, and crossover
• Pop-out adjustment knobs keep settings from being disturbed easily
• Multi-Voltage, Switchable 120/240V input voltage