Universal DIY Audio Amplifier Board | TDA7294/7293 100W Mono Power Amp for Subwoofer/Car Audio

Single-Channel TDA7294 Amplifier Board | 100W Peak Power Subwoofer/Full-Range DIY Module (Official Circuit, 4-8Ω)

Product Advantages

1. High-Power Output: Delivers 85W RMS (100W peak) at 4-8Ω, ideal for driving 100W+ subwoofers or full-range speakers with low distortion.
2. Official Standard Circuit: Factory-designed layout ensures rock-solid stability, minimizing oscillation risks.
3. Robust Power Supply: Supports dual 12-36V AC (recommended 32V) for clean, dynamic audio and headroom during peaks.
4. Premium Filtering: Uses 50V/2200μF electrolytic capacitors to suppress noise and ensure smooth bass response.
5. Compact & DIY-Friendly: 50×50mm PCB with labeled terminals for easy soldering/wiring; TDA7294 default (TDA7293 available via customer service).

Key Features

• Output Power: 85W RMS (100W peak) @ 4-8Ω
• Supply Voltage: Dual 12-36V AC (32V recommended)
• Filtering: 50V/2200μF large electrolytic capacitors
• Thermal Warning: Heatsink REQUIRED to prevent overheating/damage.
• Compatibility: Fits 100W+ speakers, car audio systems, or home theater upgrades.

Applications

1. Subwoofer Amplification: Power a 10-12" subwoofer for deep, punchy bass in cars or home theaters.
2. Full-Range Speaker Driver: Use as a mono channel for mid-range or high-frequency speakers in DIY tri-amp setups.
3. Guitar/Instrument Amps: Modify for clean, high-headroom tone in music production or live performances.
4. Budget Audio Upgrade: Replace weak factory amps in vintage radios or multimedia systems.

Critical Notes

• Heatsink Mandatory: The TDA7294/7293 runs hot; install a ≥100cm² aluminum heatsink to avoid failure.
• Voltage Caution: Exceeding 36V AC may damage the IC; use a regulated power supply for stability.
• Component Swap: Contact seller to switch from TDA7294 (default) to TDA7293 for slightly different sonic characteristics.
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