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WONDOM AA-AB32281 Class D Stereo Amplifier Board T-Amp 2x130W 3 Ohm
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Wondom AA-AB32281
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.
Technical characteristics
| Spécifications | |
|---|---|
| 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 | |
|---|---|
| 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 |
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