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    Sure Electronics AA-AB32165 2x25W 6 Ohm TDA7492 Class-D Audio Amplifier Board

    € 26,41€ 31,95 >10 In stock: delivery time 1-4 business days
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    Product description

    Choose this 2 x 25 watt amplifier board to power your next speaker project. A Texas Instrument's Class D TDA7492 amplifier chip is employed to produce high fidelity sound efficiently.



    • Pre-assembled, pre-tested
    • Superb sound quality
    • Perfect Class D architecture
    • Two channels—each up to 25W
    • Up to 90% efficiency
    • Does not require a heat sink for most applications
    • Line level analog audio input


    Product details

    Sure Electronics AA-AB32165 2x25W 6 Ohm TDA7492 Class-D Audio Amplifier Board

    Tip:  Take a look at the table in this blogpost to see which power supply to choose for this product.


    This Class D dual channel amplifier board employs a Tripath-style Texas Instruments TDA7492 chip. Each channel is rated at 25W, delivered with state-of-the-art sound quality. The TDA7492's efficiency eliminates the need for an external heat sink when playing music under average listening conditions. Integration of high-quality capacitors ensures hi-fi amplification output. Requires a DC power supply ranging from 14 to 19 VDC (available separately) and can be used to drive any 4 ohm or 8 ohm passive speakers. Gain control is accomplished by setting two DIP switches, and there are four gain modes available: 24.6 to 26.6 dB, 30.6 to 32.6 dB, 34.1 to 36.1 dB, and 36.6 to 38.6 dB.


    Article number
    Rated power output

    2 x 20 watts at 8 ohms
    2 x 25 watts at 6 ohms

    Minimum load
    4 ohms
    87 - 93 %
    Signal-to-noise ratio (SNR)
    91 dB
    0.05 % THD at 1 kHz, 6 ohms, 1 watt
    Frequency response
    20 - 20,000 Hz

    20.6 - 22.6 dB
    26.6 - 28.6 dB
    30.1 - 32.1 dB
    32.6 - 34.6 dB

    Input sensitivity

    1.5 V at 22 dB
    0.7 V at 28 dB
    0.5 V at 31 dB
    0.4 V at 34 dB

    Input impedance
    60k ohms
    Amplifier Classification
    Class D
    Circuit Topology
    STMicroelectronics TDA7492
    Speaker output channels
    Input connection type

    PCB solder connection

    Speaker output connection type

    Screw terminal
    PCB solder connection

    DSP function
    EQ Adjustment
    Power Requirements
    14 - 19 VDC
    Power inlet connector

    Screw terminal
    PCB solder connection

    Current limit
    3.5 A
    Under/over voltage protection
    Dimensions (L x W x H)
    122 x 91 x 24 mm
    Mounting hole spacing
    112 x 81 mm
    Mounting hole diameter
    3.8 mm


    5 from 5Based on 3 reviews
    Review this product
    5 of 5
    This a robust and good performing amp. Sound Imports had the best price! Also I’m based in the UK the items arrived quickly.
    By David G. on 9 February 2021
    5 of 5
    Nice amp and compact. No overheating. No terminal for the power cable, only using the dc connector. So the image is not correct. I had to get a dc plug, to be able to use the amp.
    By Rikard E. on 2 May 2020
    Show more

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    Complete your purchase

    AA-AB32165 2x25W 6 Ohm TDA7492 Class-D Audio Amplifier Board
    € 26,41
    € 31,95
    AA-AB32165 2x25W 6 Ohm TDA7492 Class-D Audio Amplifier Board
    >10 In stock: delivery time 1-4 business days
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