Heatsink is not included. For illustration purposes only


The TDA7293PSU is an ALL-IN-ONE module for professionals that want an easy and quick solution.

On board is a complete power supply. All that's needed to get it up and running is a power transformer. Simply solder in the secondaries and that's it. A 8A Bridge rectifier with two 3,300uF 50V filter capacitors supply the power to the TDA7293 as well as the Op Amp. To ensure the Op Amp has clean supplies, two voltage regulators (7815 and 7915) are deployed.

To cater for professional use, the input is fully Balanced. For domestic use, the input can be converted to Single Ended.

The TDA7293PSU is compact enough to be enclosed in a 2-way speaker for active speakers. The pcb footprint is only 4-3/8" X 2-3/4".

Performance is outstanding. The TDA7293PSU recorded a Rise Time of 2.8us with a 20kHz Square Wave into an 8 load. More than that, she sounds very "musical" during audition.

1kHz Full Power into 8Ω
20kHz Square Wave into 8Ω

TDA7293PSU Specifications

Power Output = 36W into 8Ω | 60W into 4Ω
Input Sensitivity = 1.0V RMS (Unbal) | 0.5V RMS (Bal)
Input Impedance = 20K
Rise Time = 2.80us at 20kHz Sq into 8Ω
Voltage Gain = 30dB

Power Supply Specs
Power transformer = 20-0-20Vac
Supply Rails = +/- 28Vdc

PCB = 4-3/8" X 2-3/4" (110mm x 70mm)
Double Sided | FR4

The TDA7293PSU is one channel and is supplied Unassembled. Two kits are required for stereo.

To complete the amplifier, the following are needed
1) a power transformer
2) a heatsink for the TDA7293 chip amp
3) a metal case and the necessary connectors

US$ 57.50

US$ 24.50

$40 Minimum Order on Check Out
Shipping info

60 Downes Street | Calais | ME 04619 | USA