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    BSTK Black SAM300300W Subwoofer Amplifier Mono-Channel Class A/B, Auto Sensing, 4 -8 Ohm Stable

    Open Box
    Purchase Open Box - Black Series 300W Subwoofer Amplifier Mono-Channel Class A/B, Auto Sensing, 4-8 Ohm
    • Outdoor Speaker Depot SKU: BSTK-BKSAM300
    • Less then 5 - Order Now!


      Compare at: $499.99
      You Save: $200

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    Uncover unbeatable value with our Open Box item—rigorously inspected, quality-assured, and performance-tested for an exceptional audio experience. Take advantage of this excellent deal, where a minor packaging imperfection translates into a significant discount on your premium Outdoor Speaker Depot product.

    Bring your audio to life with the OSD Audio Black Series 300W mono subwoofer amplifier. This powerful amplifier provides up to 300 watts of power to passive subwoofers, allowing you to experience the full impact of all your favorite movies, music, and games. Designed for use with high-wattage passive subwoofers, such as in-wall subs, the Black Series amplifier provides stable power and enhances the low-frequency sound effects.

    This amplifier features low-level, high-level, and LFE inputs, as well as a mono Class AB output stage for a solid, well-defined output. With manual, auto, or triggered on/off modes, it can be easily integrated into any automated system. The selectable bass boost and adjustable phase, gain, and crossover settings allow you to customize your audio experience. The heavy-duty steel chassis with brushed aluminum faceplate and pop-out adjustment knobs ensure long-lasting durability and performance.

    With a multi-voltage, switchable 120/240V input voltage and low stand-by power usage, the Black Series 300W mono subwoofer amplifier is the perfect choice for your audio setup. Get ready for spine-tingling sound with the OSD Audio Black Series 300W mono subwoofer amplifier.

    • 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
    Warning: California's Proposition 65


    This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to

    • Amplifier Type: Subwoofer
    • Amplifier Class: Class A/B
    • Channels: 1
    • Power Handling: 156W(RMS)/ 310W(MAX) Per Channel @ 8 Ohm
    • Power Handling: 230W(RMS)/ 460W(MAX) Per Channel @ 4 Ohm
    • Frequency Response: 25Hz-180Hz +/-1 dB THD: 1%
    • Variable Crossover: 35Hz-160Hz
    • Bass Boost: 25Hz-50Hz
    • Low Pass Adjustment: 40Hz-180Hz
    • Variable Phase Switch: 0 to 180 Degrees
    • Impedance: 8 Ohm and 4 Ohm Stable
    • Signal to Noise Ratio: 85 dB A-weighted
    • 12V Trigger Mode
    • Inputs: Speaker (High) Level / Signal (Low), LFE Level, RCA
    • Dimensions (L x H x D): 17.25" x 3.75" x 13.88"
    • Weight: 16 lbs
    • Warranty: 2 Years

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