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        AA-AB32174 2x50W TDA7492 Class-D Amplifier Board

        AA-AB32174 2x50W TDA7492 Class-D Amplifier Board


        Sure Electronics AA-AB32174 2x50W TDA7492 Class-D Amplifier Board

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        € 24,75€ 29,95 10+ In stock

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        • At least two years warranty
        • 45-day cooling-off period to return
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        Product description

        The Class D amplifier topology makes this 2 x 50W amplifier board efficient and consume less space than traditional solid state amplifiers.



        • 2 x 50W Class D amplifier
        • Small footprint for space limited applications
        • Built-in cooling fan, pop noise suppression, and over-temp protection circuit
        • 14 to 27 VDC power supply required


        Product details

        Sure Electronics AA-AB32174 2x50W TDA7492 Class-D Amplifier Board

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


        This amplifier board features a state-of-the-art, dual channel Class-D TDA7492 IC, which delivers up to 50 watts per channel. The small 9.14cm wide by 12.2cm long footprint allows this amplifier board to be used in many applications were size constraints limit the use of conventional amplifiers. Just add a 14 to 27 VDC power supply, signal source, and speakers!


        A low noise cooling fan is mounted atop the robust heatsink to maximize heat dissipation. Thermal protection is also included to extend the longevity of the amplifier board. Four fixed gain settings are available to allow for volume control at the source, and stereo RCA line-level inputs are pre-attached. Mounting holes are provided as is a 2.5 mm x 5.5 mm power jack for quick connection. Screw-down phoenix-type terminals are included for quick speaker wire connection.


        • Class D amplifier topology featuring TDA7492 amplifier IC
        • Heatsink with attached fan
        • Pre-drilled mounting holes
        • Over-temperature protection circuit
        • Click and pop noise suppression
        • Phoenix-type speaker terminals
        • Line-level RCA input





        Typical Performance Graphs:
        Frequency response:



        Noise Floor:



        THD+N VS Frequency:



        Thermal Image:


        All parameters were tested with Rohde & Schwarz UPV audio analyzer and AP AUX0025 filter with AES17 filter enabled.

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        Article number
        Rated power output
        2 x 50 watts at 6 ohms
        Minimum load
        4 ohms
        88 - 93 %
        Signal-to-noise ratio (SNR)
        96 dB

        0.041 % THD at 1 kHz, 6 ohms, 1 watt
        0.051 % THD at 1 kHz, 6 ohms, 10 watts

        Frequency response
        20 - 20,000 Hz
        22, 28, 31, 34 dB
        Input sensitivity
        1.7 V
        Input impedance
        22k 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
        10 - 27 VDC
        Power inlet connector

        2.5 mm DC jack
        Screw terminal

        Current limit
        4.63 A
        Under/over voltage protection
        Dimensions (L x W x H)
        122 x 91 x 36 mm
        Mounting hole spacing
        112 x 81 mm
        Mounting hole diameter
        3.5 mm

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        AA-AB32174 2x50W TDA7492 Class-D Amplifier Board
        € 24,75
        € 29,95
        AA-AB32174 2x50W TDA7492 Class-D Amplifier Board
        10+ In stock
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