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Low Power (<30W per channel)

2 x 30 Watt Digital Input Class D Audio Amplifier Board & DAC - TAS5756[706]

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AA-AB32255 is a digital input high performance Class D audio amplifier with integrated audio processor, based on the TAS5756 from Texas Instruments. It provides 30Watts stereo, making it suitable for PC audio, Sound bars, Active speaker, DIY applications such as Raspberry pi. AA-AB32255 supports I2S digital input and supports high resolution playback up to 192kHz/24bit so customers can enjoy music same as originally recorded. Its advanced design offers low noise, high SNR and low THD+N as 0.06%, delivering premium audio quality to listeners.

Besides, this board also provides 3-wire audio digital interface (no MCLK required), supporting Raspberry Pi, offering a swift and convenient audio solution for DIYers.

It can also work as a high performance stereo audio DAC and supports direct analog output without amplification.

Video for introduction: video link

  • StyleBoards
  • Number Of Channel(s)2
  • Output Power30
  • Size3.6 x 2.7 inches (91.44mm x 68.58mm)
  • ChipsetOthers
  • Heat DissipationNo Heat Sink & FAN
  • Supported Parallel Bridge Tied Load ModeNO
  • inputI2S,
  • Power Voltage10V-24V
  • Output Power
  • 30W@ 4Ohm 19V DC THD+N 10%
  • High Performance DAC
  • I2S Input Supported
  • 3-Wire Digital Input
  • (No MCLK Required)
  • 44.1kHz-48kHz Sample Rate
  • 16Bit/24Bit Resolution
  • Net Weight: 58g/ 0.13 lbs (±10%)
  • Size: 3.6 x 2.7 x 0.72 inches
SpecifiSpecifications typical @+25℃, powered by 24V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter(s)ConditionsMin.Typ. Max.Unit (s)
Power SupplyJ2/J4 (Power Adapter/Power Supply)101924VDC
J3 (Battery, powered by WONDOM BCPB Series)14-21VDC
Idle PowerSD Floating0.710.750.81W
Maximum Current 30W @ 4Ohm -3-A
Efficiency30W @ 4Ohm (Only the amplifier)-90-%
Minimum Load Impedance--4-Ω
Switching FrequencySD Floating, 8 x Fs, LRCK = 48kHz-384-kHz
SpecifiSpecifications typical @+25℃, powered by 24V DC, unless otherwise noted. Specifications subject to change without notice.
GainCan be adjusted to -100dB with WONDOM Volume Control Board- 28-dB
Output Power@4Ω THD+N 10%- 30-W
Bandwidth @ ±3dB@4Ω20-20k   Hz
THD@4Ω, 1W, 1kHz-0.05-%
Output Noise LevelA-weighting       - 80-µV
SNRTHD+N <1%, A-weighting-102-dB







12 May 2019

Any info how to wire this to the Raspberry Pi and aux in, and what wires you would need?

Hi, Eric. Please connect the pin for I2S output of RaspBerry Pi with the pin for I2S input of AA-AB32255 correspondingly. The AA-AB32255 is designed for I2S input. If you have any other question, please feel free to contact us.


12 May 2019

Does it work with JAB 1 or 2?

Hi, Eric. The AA-AB32255 cannot be used with JAB1 or JAB2. Please feel free to contact us if you have any other question.

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