Induction Dynamics A2 External Class AB Subwoofer Amplifier

The A2 subwoofer amplifier is designed to integrate with audio and video pre-amplifiers and receivers that have their own built-in low-frequency crossover circuits, typically containing optional crossover frequency settings such as the ID1 series and SW series subwoofers. If the crossover frequency is selectable, the recommended setting to use is 80 Hz with the subwoofer connected in reverse polarity. Harmonic distortion is < 0.07% (@ 1kHz, 1 Watt) . Output load is 10 K ohm (2.5 min).


This product has a patented non-distorting frequency-selective excursion limiter.

  • Color Black
    Manufacturer’s Suggested Retail
    UPC 644216220007
    Manufacturer Induction Dynamics
    Manufacturer’s Category Amplifiers
    Included Accessories Power Supply
    Damping Factor 95 dBA
    Input Impedance 400 Ω @ 60 Hz
    Output Type Gold Plated Terminals #10 AWG Max, Banana Plug
    Power Requirements 120V AC 6A Slow-Blow Fuse
    Voltage Gain 26 dB, 36 dB, Internally Switchable
    Frequency Response (± 3 dB) 20 Hz – 20 kHz
    Magnetically Boosted No