Customer Support



    Sure Electronics AA-AB33184 4x100W TDA7498 Class-D Amplifier Board

    € 57,81€ 69,95 3 In stock: delivery time 1-4 business days
    Bulk discount Enjoy these awesome discount deals
    • -5% Order 4 for only €66,45 per piece
    • 24h express shipping available
    • Low international shipping rates
    • Same day shipping*
    • In-house technical support

    Product description

    Two TDA7498 Class-D amplifier ICs are used on this amplifier board to produce up to 100W into four channels.



    • 4 x 100W Class-D amplifier
    • Small footprint for space limited applications
    • Perfect amplifier for bi-amp applications
    • Built-in cooling fan and over-temp protection circuit
    • 14 to 39 VDC power supply required


    Product details

    Sure Electronics AA-AB33184 4x100W TDA7498 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 two state-of-the-art, two-channel Class-D TDA7498 ICs, which deliver up to 100 watts per channel. The small 3.6" wide by 4.8" long footprint allows this amplifier board to be used in many applications were size constraints limit the use of conventional amplifiers. Additionally, separate inputs and outputs make this amplifier board perfect for bi-amplifier use. Just add a 14 to 39 VDC power supply, signal source, and speakers!


    A low noise cooling fan is mounted atop the robust heatsink to maximize heat dissipation. Thermal, over/under voltage, and current protection circuits are 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 dual 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.


    • Two Class-D TDA7498 amplifier ICs
    • Heatsink with attached fan
    • Pre-drilled mounting holes
    • Over-temperature, over/under voltage, and over current protection circuits
    • Phoenix-type speaker terminals
    • Four line-level RCA inputs


    • Power output (w/ 36 VDC power supply): 100W x 4 (6 ohms, THD 10%), 80W x 4 (8 ohms, THD 10%), 78W x 4 (6 ohms, THD 1%) 
    • Frequency response: 22 to 22,000 Hz
    • Minimum impedance: 4 ohms
    • Recommended power supply: 14 to 39 VDC, 12A regulated
    • Fixed gain settings: 25.6 dB, 31.6 dB, 35.1 dB, 37.6 dB
    • Power input jack: 2.5 x 5.5 mm, center-positive
    • Dimensions: 6" L x 4.5" W x 1.4" H


    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.


    Article number
    Rated power output
    4 x 100 watts at 6 ohms
    Minimum load
    4 ohms
    90 %
    Signal-to-noise ratio (SNR)
    Frequency response
    20 - 20,000 Hz
    25.6 - 37.6 dB (switchable)
    Input sensitivity

    1286 mV at 25.6 dB
    723 mV at 31.6 dB
    430 mV at 35.1 dB
    323 mV at 37.6 dB

    Input impedance
    60k ohms
    Amplifier Classification
    Class D
    Circuit Topology
    STMicroelectronics TDA7498
    Speaker output channels
    Input connection type

    PCB solder connection

    Speaker output connection type

    Screw terminals
    PCB solder connection

    DSP function
    EQ Adjustment
    Power Requirements
    14 - 39 VDC
    Power inlet connector

    DC jack (5.5 mm)
    screw terminals

    Current limit
    7 A
    Under/over voltage protection
    Dimensions (L x W x H)
    152.4 x 114.3 mm
    Mounting hole spacing
    142.7 x 104.1 mm
    Mounting hole diameter
    1.55 mm


    5 from 5Based on 2 reviews
    Review this product
    5 of 5
    Powerful, pure and clean sound
    By Joaquim C. on 30 December 2020
    5 of 5
    Sure Electronics 4x100W TDA7498 Class-D Amplifier Board has great audio quality for the price. The built quality is also really good and the materials fell premium. no complaints so far :)
    By Simon on 17 April 2019

    Related products

    Complete your purchase

    AA-AB33184 4x100W TDA7498 Class-D Amplifier Board
    € 57,81
    € 69,95
    AA-AB33184 4x100W TDA7498 Class-D Amplifier Board
    3 In stock: delivery time 1-4 business days
    Add to cart
    Compare 0

    Add another product (max. 5)

    Start comparison

    By using our website, you agree to the usage of cookies to help us make this website better. Hide this messageMore on cookies »