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Class D Stereo Amplifier Board T-Amp 2x130W 3 Ohm
The Wondom AA-AB32281 is a stereo amplifier module capable of delivering 2x128w of power at 3Ω. Featuring a Class D architecture based on Sure Electronics' T-Amp technology, it achieves a very high efficiency of 91% and excellent sound quality with very low distortion and noise level. Its SNR is measured at 94dB and its THD+N at 0.004% (@ 3Ω, 1W, 1kHz).
The amplifier is also topped by a fan and radiator to effectively dissipate the heat emitted by the components. It also benefits from a complete protection system, against overheating or overcurrent.
Spécifications | |
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Product type | Amplifier board |
Channels | Stereo (2) |
Output power | 2x 200W @ 3Ω, 36VDC, THD+N 10% 2x 128W @ 3Ω, 36VDC, THD+N 1% |
Input | 1x Stereo RCA |
Sortie | 1x Speaker output on screw terminals |
Protections | Over-currents Over heating |
Measurements | ||||
---|---|---|---|---|
Parameter | Conditions | Min. | Typ. | Max. |
Max current | 400W @ 3Ω | - | 12.6A | - |
Efficiency | 200W @ 3Ω | 86% | - | 91% |
Min. load impedance | - | - | 3Ω | - |
Switching frequency | SD Floating | - | 730kHz | - |
Fan activation temperature | - | - | 50°C | - |
Gain | - | 24dB | 26dB | 28dB |
Input sensitivity | 3Ω, 200W, 1kHz | - | 740mVrms | - |
Input impedance | - | - | 33kΩ | - |
Output power | 3Ω, THD+N 1% | - | 128W | - |
3Ω, THD+N 10% | - | 200W | - | |
Bandwidth @ ±3dB | 3Ω | 20Hz | - | 20kHz |
THD | 3Ω, 1W, 1kHz | - | 0.004% | - |
3Ω, 10W, 1kHz | - | 0.02% | - | |
Output noise level | A-Weighting, input connected to GND | - | 188µV | - |
SNR | 128W, 3Ω, THD+N 1% | - | 94dB | - |
General | |
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Supply voltage | 15-36V |
Dimensions | 121.92 x 91.44mm |
Weight | 518g |
Input | RCA |
Output | Speaker terminal |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | T-Amp |
Power (W) | 130.0 |