80W/8Ω 160W/4Ω TDA7293*3 Parallel Circuits Mono Power Amplifier Board

Line features: Typical circuit line; using 1 main - 2 from 3 in parallel amplification circuit line to increase the amplify capacity; using field tube output of high-power integrated circuits TDA7293; mono power amplify design. 

Design materials: all new components, 3 new TDA729; printed board using 70um thick copper, 2mm thick board; printed board size: 112 * 45; the use of U.S. ALPHA solder wire.

AP test parameters Test conditions: AC27.3V power supply, with 8 ohm 800 watt load test data

Output RMS: 23.66Vrms

Channel Gain: 28.58 26.7x

Signal-to-noise ratio: 117.6dB

Dynamic Range: 117.6dB

THD distortion: 0.005586%

THD+N distortion: 0.0212%

Frequency response bandwidth: ±0.201dB

Input sensitivity: 940mV

Output power: 80W/8 ohms 160W/4 ohms

Quality assurance and after-sales service

In order to ensure the quality, every finished board will undergo a comprehensive AP test to ensure that it meets the design specifications.

Tests include: bandwidth, noise (signal-to-noise ratio), dynamic range, distortion, intermodulation distortion, channel separation, amplification and so on.