2.1 Channel Audio Amplifier Board 134W – TDA2050 + D1047 Subwoofer Amplifier Circuit
₨ 1,495
- 🟢 2.1 Channel Amplifier – Dedicated left, right, and subwoofer channels for complete sound systems.
🔵 TDA2050 Audio Chip – High-quality amplifier IC used for clear and detailed stereo sound.
🟡 Powerful Bass Section – D1047 transistor drives the subwoofer for deep and punchy bass.
🟣 NJM4558 Low Pass Filter – Enhances low frequency response and improves bass performance.
🟠 Dual Transformer Support – Works with 15-0-15V AC or 24-0-24V AC transformer supply.
🔷 High Efficiency Design – Provides over 90% power efficiency with stable performance.
⚙ Perfect for DIY Audio Projects – Ideal for home theater, subwoofer systems, and amplifier builds.
Upgrade your sound system with this 2.1 Channel High Power Audio Amplifier Board designed for powerful and clear audio output. This amplifier board uses the TDA2050 audio chip for left and right channels to deliver high-quality stereo sound, while the D1047 transistor powers the subwoofer section for deep and strong bass performance.
The circuit also features the JRC4558 (NJM4558) operational amplifier, which works as a low-pass filter to enhance low-frequency response and provide rich bass output for the subwoofer. It is an ideal choice for DIY audio enthusiasts, home theater projects, speaker upgrades, and audio system repairs.
This amplifier operates with 15-0-15V AC or 24-0-24V AC transformer supply (minimum 5A) and supports 2.1 channel output for left, right, and subwoofer speakers. With high efficiency and stable performance, this board is perfect for building powerful sound systems with excellent audio clarity.
⚙️ Specifications:
• Amplifier Type: Class AB
• Chip Model: TDA2050 + JRC4558 (NJM4558) + D1047
• Output Channel: 2.1 Channel
• Output Power: 32W + 32W + 70W
• Supply Voltage: 15-0-15V AC or 24-0-24V AC Transformer (Minimum 5A)
• Speaker Impedance: 4Ω – 8Ω
• Frequency Response: 20Hz – 2000Hz
• Woofer Frequency Response: 20Hz – 200Hz
• Power Efficiency: >90%
• Board Size: 17.2 cm × 9.2 cm × 4.3 cm
🔊 Recommended Speakers:
• Subwoofer: 6–10 inch, 4-8Ω, around 60W
• Left & Right Speakers: 4–6 inch, 4-8Ω, 20–40W full range speakers
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