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 Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.

This amplifier module from WONDOM is a powerful 3-channel module. It delivers up to 2x300W and 1x500W under 3 Ohm (THD+N = 10%). This module is based on Class D architecture and T-AMP technology, enabling 97% efficiency while maintaining high sound reproduction quality and low levels of noise and distortion. This multi-channel amplification PCB is therefore ideal for any DIY 2.1-channel audio system project.
The module accepts a power supply range from 24V to 50V DC via DC 5.5/2.5mm jack connector.

The ingenious design of this PCB by Wondom enables it to achieve excellent performance levels, with SNR as high as 91dB and THD+N as low as 0.01% (3 Ohm, 10W, 1kHz).


This amplifier module features a low-noise fan and an optimized heatsink for optimum cooling of the module during operation. In addition, the module features a complete protection circuit against overheating and overcurrent.
The module's mounting holes allow rapid installation in a case. The PCB features RCA inputs and screw terminals for plug-and-play operation, with no need for soldering.

Technical characteristics
| Specifications | |
|---|---|
| Product type | Amplifier module | 
| Channel number | 3 | 
| Inputs | 3x RCA input | 
| Outputs | 3x Unbalanced output on screw terminal block | 
| Output power | 2x 300W + 1x 500W | 
| Amplification chip | T-AMP | 
| Amplification type | Class D | 
| Protections | Over/Under-voltage | 
| OPERATING SPECIFICATIONS | |||||
|---|---|---|---|---|---|
| Parameter | Conditions | Min | Typ | Max | Units | 
| Power supply | - | 24 | 50 | - | VCC | 
| Idle power | SD floating, FAN ON | - | 20 | 25 | W | 
| SD floating, FAN OFF | - | 16.5 | 18 | W | |
| Standby power | SD connected to GND, FAN OFF | - | 1 | 3 | W | 
| Maximum current | 600W @ 3Ω | - | 12.6 | - | UN | 
| Efficiency | 500W @ 3Ω | 92 | - | 97 | % | 
| Minimum load impedance | - | - | 2.5 | - | Ω | 
| Switching frequency | SD floating | - | 660 | - | KHz | 
| Fan active @ temperature | - | - | 50 | - | °C | 
| Performances | |||||
|---|---|---|---|---|---|
| Parameter | Conditions | Min | Typ | Max | Units | 
| Gain | - | 28.5 | 30.5 | 32.5 | dB | 
| Input sensitivity (RMS) | @3Ω, 500W,1KHz | - | 0.876/1.44 | - | V | 
| Input impedance | - | - | 33 | - | W | 
| Output power | @3Ω THD+N 1% | - | 312 | - | W | 
| @3Ω THD+N 10% | - | 500 | - | W | |
| Bandwidth @ ±3dB | @3Ω | 20 | - | 20K | Hz | 
| THD | @3Ω, 1W, 1KHz | - | 0.011 | - | % | 
| @3Ω, 10W, 1KHz | - | 0.01 | - | % | |
| Output noise level | A-weighted, Input Connected to GND | - | 224 | - | µV | 
| SNR | 312W @3Ω THD+N 1% | - | 91 | - | dB | 
| General | |
|---|---|
| Supply voltage | 24V - 50V DC | 
| Dimensions | 152.4 x 101.6mm | 
| Package | 1x WONDOM AA-AB33511 amplifier module | 
| Input | RCA | 
| Output | Screw terminals | 
| Channel | 3 | 
| Class | Class D / T | 
| Amplifier chip | T-Amp | 
| Power (W) | 300.0 | 
| Power (W) | 500.0 |