✅ Universal compatibility with 4+ transistor types
✅ Includes 4x IN5404 protection diodes
✅ Compact and space-saving design
✅ High-quality fiberglass PCB material
✅ Clearly marked solder points for easy assembly
✅ Ideal for 50W-200W amplifier projects
✅ Stable performance under heavy loads
✅ Suitable for audio repairs or custom builds
✅ Cost-effective alternative to OEM boards
✅ Model D104 with proven reliability

• 🚀 Peak Output Power: 800 Watts Total (400W + 400W @ 4Ω Load).

• ⚡ Operating Voltage: Dual Rail ±45V to ±70V DC (Symmetrical).

• 🎸 Transistor Tech: Optimized for NPN/PNP Power Pairs (Class AB).

• 🌈 Audio Fidelity: Ultra-low THD (Total Harmonic Distortion) for “Crystal Clear” highs.

• 🛡️ Rugged Build: FR-4 Glass-Epoxy PCB with Extra-Thick Copper Paths.

• 🎧 Channel Layout: True Stereo (Independent Left/Right inputs and outputs).

• 🌡️ Thermal Design: Includes footprints for 0.47Ω 5W Emitter Resistors for heat stability.

• 🎯 Versatility: Perfect for Subwoofers, Floor-standers, or Pro-Audio monitors.

• 🔊 750W High Power Output – Delivers strong mono channel performance.

• 🔧 Opamp Based Design – Provides clear, crisp, and controlled audio quality.

• 🔁 10 Output Transistors Support – Handles both NPN and PNP types for balanced output.

• 📏 Board Size: 21.4cm x 8.1cm – Optimized for DIY and professional projects.

• 🛠️ Bare PCB Board – Ready for custom assembly with your preferred components.

• 🎯 Ideal for High Power Audio Projects – Car amps, custom speaker systems, and home audio builds.

• Massive 800W Output (400W×2 channels)

• 12-Power Transistor Array (6 NPN + 6 PNP)

• Outdoor-Rated Design with conformal coating-ready

• Oversized 4.5″×17.7″ Dimensions for optimal heat management

• Military-Grade 2oz Copper Traces for high current handling

• Professional-Grade Components:

  • Heavy-duty power supply section

  • Multiple bypass capacitor banks

  • Protected input buffer stage

1. 1500W High Power Output – Perfect for large venues and outdoor events.

2. 20 NPN & PNP Transistors – Ensures stable, high-fidelity amplification.

3. Compact Dimensions (24.5cm x 11.5cm) – Space-saving and easy to install.

4. Outdoor-Ready Design – Built to withstand tough environmental conditions.

5. Low Distortion – Clean audio reproduction even at maximum volume.

6. Efficient Heat Dissipation – Prevents overheating during prolonged use.

7. Fiber-Reinforced Board – Enhances durability and reduces interference.

8. Versatile Applications – Ideal for PA systems, subwoofers, and DJ equipment.

9. DIY-Friendly – Great for custom amplifier builds and upgrades.

10. Cost-Effective – Professional performance at a competitive price.