








Couldn't load pickup availability
Description:
The DX-2.1-3 Audio Amplifier Board is a compact yet powerful 2.1-channel audio solution, ideal for home theater systems, speaker builds, and DIY audio projects. It features six disassembled amplifier tubes—four dedicated to the left and right stereo channels and two connected to a BTL (Bridge-Tied Load) circuit for subwoofer output.
Designed with simplicity and performance in mind, this board offers high power output, smooth low frequencies, and excellent heat dissipation through its air-cooled system.
Key Features:
🎛 High Power Output: 3 × 80W configuration (L/R/Subwoofer)
🎧 Superior Audio Quality: Rich, deep bass and clear treble response
💡 BTL Circuit for Subwoofer: Enhanced bass performance
🧊 Air-Cooled System: Heat sink and cooling fan for stable operation
🔒 Multi-Protection Design: Boot delay, short circuit, and overload protection
🎶 High-Quality Components: Includes NICHICON 15000uF 40V capacitor for clear, pleasant sound
🔌 Simple Wiring: Easy setup, perfect for DIY users
Specifications:
Model: DX-2.1-3
Working Voltage: AC 18V–24V
Output Power: 3 × 80W
Mega Bass Output: 120W
Left & Right Channel Output: 100W + 100W
Frequency Response: 20Hz – 30KHz
Distortion Factor: 1%
Board Size: 160 × 150 × 60 mm / 6.3 × 5.9 × 2.4 in
Package Size: 160 × 155 × 65 mm / 6.3 × 6.1 × 2.6 in
Item Weight: 297g / 10.5 oz
Package Weight: 347g / 12.2 oz
Note:
Manual measurement may vary by 1–3 mm.
Colors may vary slightly due to monitor differences.
Package Includes:
1 × Power Audio Amplifier Board