YJ00155 IRS2092 Class D Mono Amplifier Board High Power Audio Amp Module

📌 Product Overview

This YJ00155 IRS2092 Class D mono power amplifier board adopts full original genuine core components, with rigorous and standardized PCB single-point grounding layout, delivering stable, high-power audio output. Equipped with four 4700μF/80V Japanese filter electrolytic capacitors and dual 50A flat rectifier bridges, it provides sustained sufficient power reserve. Supporting AC dual 20V-45V alternating current input (rectified DC ±28V~±60V), the module outputs max 350W@8Ω / 700W@4Ω with distortion lower than 0.1%. It features ±1% precision metal film resistors, 20A high-current shielded inductors and 1.6mm 2oz thick copper double-sided tin-plated PCB, bringing wide soundstage, solid low-frequency, ultra-high SNR and excellent transient response, perfectly matching home HiFi speaker systems, audio DIY modification and professional single-channel audio playback equipment. Operating temperature range reaches industrial grade -40℃ ~ +85℃ for long-term reliable operation.

🧠 Core Hardware Layout

1. Main Driver Chip: Original IRS2092 dedicated D-class audio driver IC
2. Power MOSFET: Genuine IRFB23N20D power tube for stable high-current output
3. Filter Capacitors: 4pcs 4700μF/80V Japanese large-capacity electrolytic filter capacitors; signal circuit uses ELNA & NXB brand electrolytic capacitors
4. Rectifier Circuit: Dual 25*2 50A flat bridge rectifiers for continuous powerful power supply
5. Resistor Assembly: Full-circuit five-ring metal film resistors, main signal loop with ±1% high precision resistors to optimize signal-to-noise ratio
6. Power Inductor: 20A high-current shielded inductor for crisp, powerful sound performance
7. PCB Substrate: 1.6mm double-sided PCB with 2.0oz copper thickness, full tin plating to enhance large-current carrying capacity
8. Heat Dissipation: Large aluminum alloy heat sink pre-installed for efficient heat dissipation under high-load continuous operation
9. Wiring Terminal: High-current copper terminal blocks for power supply and speaker connection, firm wiring without loose contact

⚙ Core Technical Specifications

• Model: YJ00155
• Amplifier Type: Single Channel Class D Digital Power Amplifier
• Core Devices: IRS2092, IRFB23N20D
• Working Voltage: AC Dual 20V~45V (Rectified DC ±28V~±60V)
• Max Output Power: 350W/8Ω, 700W/4Ω (AC Dual 50V input, THD <0.1%)
• Voltage Gain: 36 times in-phase amplification
• Input Sensitivity: 1.6V (RMS)
• Input Impedance: 14KΩ
• Frequency Response: 0-50KHz ±1dB (10W/8Ω load)
• Residual Noise Voltage: 200uV
• Dynamic Range: >100dB
• Total Harmonic Distortion: <0.1%
• PCB Parameter: 1.6mm double-sided board, 2oz copper, full tin plating
• Dimension: 1787649mm
• Net Weight: 401g
• Working Temperature: -40℃ ~ +85℃

📌 Matching Voltage Modification Note

If the input AC voltage is below 35V, replace R6 and R7 resistors with 2K/2W resistors; the factory default configuration is 3.9K resistors for 40-45V AC input power supply.

✨ Outstanding Product Features

✅ Full Original Genuine Components: IRS2092, IRFB23N20D, Japanese filter capacitors, ELNA/NXB signal capacitors ensure stable performance and long service life ✅ Ultra High Output Power: Peak 700W single-channel power, sufficient power reserve for large speakers, thick and powerful low-frequency performance ✅ Dual 50A Rectifier Bridge: Dual flat rectifier design to eliminate power supply bottleneck, stable continuous high-power output ✅ Premium PCB Craft: 2oz thick copper full tin-plated double-sided board, single-point grounding layout, effectively suppress noise and crosstalk ✅ High Precision Audio Circuit: ±1% precision metal film resistors + 20A large current shielded inductors, SNR up to 100dB+, clean background noise ✅ Wide Industrial Temperature Range: -40℃ ~ +85℃ stable operation, suitable for indoor and semi-outdoor audio equipment ✅ Excellent Sound Performance: Wide sound field, strong stereo separation, clear music details, outstanding transient response, compatible with all music genres ✅ Pre-installed Heat Sink: Large aluminum heat sink solves heat dissipation during long-time high-power playback ✅ Simple Wiring: Standard high-current terminal blocks, easy to connect AC power supply and speaker loads

🛒 Application Scenarios

1. Home HiFi Audio System: DIY single-channel power amplifier to match passive subwoofers, large floor-standing speakers
2. Audio Equipment Modification: Upgrade old audio players, active speaker power drive modules
3. Professional Audio Equipment: Single-channel audio playback device, stage auxiliary audio power amplification
4. Custom Subwoofer: High-power single-channel drive for passive bass subwoofer cabinet
5. Embedded Audio Projects: High-power audio drive for industrial audio playback equipment

⚠ Important Usage Notice

1. This board only supports AC dual alternating current power supply, cannot be directly connected to single DC power supply without rectifier circuit
2. When matching power transformer, select dual AC 20V~45V transformer according to required output power, avoid overvoltage burnout
3. Do not short-circuit the speaker output terminal during power-on, short circuit will cause permanent damage to the power tube
4. Long-term operation under maximum power needs to ensure good ventilation and heat dissipation environment for the heat sink

📦 Package List

1 × YJ00155 IRS2092 Class D Mono Power Amplifier Board