Description
TPA 3251 Chip Dual+Pure Bass Channel Audio Receiver Power Amplifier Module 2X50Watt + 200Watt Audio Power Amp Board with Volume Adjustment
TPA3251 Based Ultra-Clean Output • High Power • Audiophile-Grade Design
Experience next-level audio clarity with this TPA3251-based 2.1-channel amplifier module, delivering 2 × 50W to left/right channels and a powerful 200W dedicated subwoofer output. Engineered for audiophiles and serious DIYers, this high-fidelity Class-D amplifier offers outstanding audio performance, low noise, and high dynamic range — ideal for premium speaker systems, home theaters, and studio-grade builds.
🔊 Key Features:
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TPA3251 Class-D Amplifier IC: Advanced PWM design for ultra-low distortion
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True 2.1 Channel Output:
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2 × 50W (stereo)
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1 × 200W (subwoofer)
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High Supply Voltage Range: 24V–38V DC (recommended 32V–36V for full output)
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Independent Tone Control: Bass, treble, and master volume knobs
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High Fidelity Audio Output: Low THD+N and high SNR
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Built-in Protection: Overheat, short circuit, over-voltage safeguards
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Sturdy PCB Layout: Designed for thermal stability and signal integrity
⚙️ Specifications:
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Amplifier Chip: TPA3251 (Texas Instruments)
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Output Power:
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2 × 50W @ 4Ω
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1 × 200W @ 4Ω (Subwoofer)
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Voltage Input: 24V–38V DC
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Speaker Impedance: 4Ω–8Ω
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Audio Input: 3.5mm AUX jack
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Board Size: ~95mm × 68mm
🎯 Applications:
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High-power DIY 2.1 speaker systems
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Studio-grade subwoofer amplifier
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Home theater audio systems
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Smart TV / projector audio upgrade
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Audiophile hobby and embedded audio builds