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Induction Dynamics A3 Internal Class AB Subwoofer Amplifier, 640W at 2.5 Ohms

Induction Dynamics A3 Internal Class AB Subwoofer Amplifier, 640W at 2.5 Ohms

SKU: INA3AMP
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Induction Dynamics A3 Specifications

  • Color

    Black

  • Damping Factor

    95 dBA

  • Input Impedance

    300 Ohm @ 60 Hz

  • Output Type

    Euroblock

  • Power Requirements

    120/240V AC 50/60 6A Slow-Blow Fuse

  • Voltage Gain

    28 dB, 38 dB, 48 dB, Externally Switchable

  • Frequency Response ( +/- 3 dB)

    20 Hz - 20 kHz

  • Magnetically Boosted

    No

  • Driver Control

    Patented non-distorting
    frequency-selective excursion limiter

  • Crossover

    24 dB/octave low pass adjustable from 40 Hz to 100 Hz in 3 Hz steps (may be switched "out" for full-range sound)

  • Harmonic Distortion

    <= 0.05% (@ 1 kHz, 1 W)

  • Output Load

    2.5 Ohms minimum

  • Power Output (Continuous)

    640 W / 500 W / 360 W (2.5 Ohms / 4 Ohms / 8 Ohms)

  • Inputs

    L&R RCA Low and high levels

  • Level Controls

    +/- 19 dB w/fixed 1/2 dB steps

  • Auto On/Off

    Auto power down if no signal for 20 minutes (turn-on sensitivity 2mv)

About Induction Dynamics A3

The A3 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 < 0.05% (@ 1kHz 1 Watt). Output load is 10 K ohm (2.5 min). Level Controls: +/- 19dB w/fixed 1/2 dB steps.

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

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What's in the box:

  • A3 Internal Class AB Subwoofer Amplifier
  • Power Supply
  • Induction Dynamics 10 Year Limited Warranty