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    Sure Electronics AA-AB32178 2x50W 4 Ohm Class D Audio Amplifier Board - TPA3116

    € 33,02€ 39,95 >10 In stock: delivery time 1-4 business days
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    Product description

    The TPA3116 Class D amplifiers provide high-performance, thermally efficient amplifier solutions. This board delivers 100 watts of power in a small package.



    • Mute and standby function eliminates popping noise
    • Convenient 8 to 26 VDC input voltage
    • Thermal and output current protection
    • Small 3.6" x 2.7" foot print for small projects


    Product details

    Sure Electronics AA-AB32178 2x50W 4 Ohm Class D Audio Amplifier Board - TPA3116


    Don't let the size fool you, the TPA3116 amp board delivers 2 x 50W into 4Ω loads. This device operates from 8V to 26V and provides a high PSRR, eliminating the need for a regulated power supply. The TPA3116 has the ability to be used as a small car amplifier, because it offers up to 90% efficiency at 12 VDC.


    Comprehensive click-and-pop reduction circuitry minimizes noise coming into and out of shutdown or mute. Work this amp board into your next small portable speaker project and enjoy the sound without the annoying pop sound when you turn it off.





    Typical Performance Graphs:
    Frequency response:



    Noise Floor:


    Thermal Image:


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


    Article number
    Rated power output
    2 x 50 watts at 4 ohms
    Minimum load
    3.2 ohms
    87 - 92 %
    Signal-to-noise ratio (SNR)
    100 dB

    0.0299 % THD at 1 kHz, 4 ohms, 1 watt
    0.073 % THD at 1 kHz, 4 ohms, 10 watts

    Frequency response
    20 - 20,000 Hz
    25 dB
    Input sensitivity
    0.8 V
    Input impedance
    22k ohms
    Amplifier Classification
    Class D
    Circuit Topology
    Texas Instruments TPA3116
    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 - 24 VDC
    Power inlet connector

    2.5 mm DC jack
    PCB solder connection

    Current limit
    5.3 A
    Under/over voltage protection
    Dimensions (L x W x H)
    91 x 69 x 23 mm
    Mounting hole spacing
    84 x 61 mm
    Mounting hole diameter
    3.5 mm


    4 from 5Based on 2 reviews
    Review this product
    4 of 5
    It is a good compact amplifier module. With an 8 Ohm load and 24 Vdc supply, max. 28 Watts RMS, at 1 kHz sine drive, can be obtained, before the THD rises too much, i.e. > 1%
    By Jean-Claude B. on 3 April 2021
    4 of 5
    Good quality power amp
    By Karol B. on 27 February 2018

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    AA-AB32178 2x50W 4 Ohm Class D Audio Amplifier Board - TPA3116
    € 33,02
    € 39,95
    AA-AB32178 2x50W 4 Ohm Class D Audio Amplifier Board - TPA3116
    >10 In stock: delivery time 1-4 business days
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