XH-M139 2.1 Channel Audio Amplifier Board
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৳ 650.00৳ 800.00 (-19%)
This XH-M139 2.1 Channel Digital Power Amplifier Board is a high-efficiency Class D audio module that delivers a total of 200W output via a 2x50W stereo configuration and a 100W dedicated subwoofer channel. Utilizing dual high-performance TPA3116D2 core chips, this module provides rich bass and crisp highs, making it the perfect foundation for custom 2.1 home theater systems and active DIY multimedia speakers.
This XH-M139 2.1 Channel Digital Power Amplifier Board is a highly efficient, high-power Class D audio solution engineered to deliver an immersive, deep-bass multimedia experience. By outputting a dedicated 2x50W for left/right satellite speakers and a massive 100W for a passive subwoofer, this module forms the perfect standalone core for custom home theater systems, DIY arcade cabinets, desktop studio monitors, and boomboxes.
At its center, the board coordinates two independent TPA3116D2 digital amplifier integrated circuits. One chip is dedicated solely to running the left and right stereo channels in bridge configuration, while the second chip handles the high-current demands of the subwoofer channel. This dual-IC design prevents channel crosstalk, reduces thermal stress, and maintains an efficiency rating exceeding 90% for cool, distortion-free performance under heavy loads.
Technical Specifications
- Product Model: XH-M139
- Core Amplifier ICs: 2 x TPA3116D2 (Class D Architecture)
- Supply Voltage Input: DC 12V to 24V (DC 24V with ≥5A recommended for peak performance)
- Output Power Matrix: 50W (Left) + 50W (Right) + 100W (Subwoofer) — Total 200W RMS
- Frequency Response Range: 14Hz to 100kHz
- Signal-to-Noise Ratio (SNR): 100dB
- Supported Impedances: Satellite speakers (4Ω to 8Ω) / Subwoofer unit (2Ω to 8Ω)
- Physical Dimensions: 100mm x 70mm x 28mm (3.94in x 2.75in x 1.1in)
Key Product Features
- Dedicated Bass Management: Features a specialized low-pass filter circuit built right into the board, ensuring only clean, heavy low frequencies reach the subwoofer while isolating mid-high vocals for the satellite channels.
- Triple Front-Panel Equalization: Equipped with three high-precision, smooth-turn metal potentiometers allowing for instant physical adjustment over Total Master Volume, Dedicated Subwoofer Volume, and Stereo Satellite Channel Balance/Gain.
- Dual Audio Input Routing: Provides extreme connectivity flexibility by hosting both an onboard standard 3.5mm stereo auxiliary line jack and a 3-pin white terminal layout header to easily wire internal Bluetooth receivers or preamps.
- Premium Power Delivery & Filtering: Outfitted with two oversized high-voltage storage capacitors and six heavy-duty toroidal copper inductors, ensuring clean, continuous current delivery to survive sudden deep-bass transients without clipping or power sags.
- Robust Circuit Safeguards: Designed with short-circuit output protection, thermal overload shutdown, overvoltage clamping, and anti-pop power sequencing circuitry to protect connected speaker voice coils.
Wiring Terminal Configurations
- DC Input (5.5mm Barrel / Screw Terminals): Flexible power input accepts standard wall adapters or bare power supply leads.
- Left/Right Terminals (Green Blocks): High-grip screw clamps for bare speaker cables feeding your mid-high passive satellite enclosures.
- Subwoofer Terminal (Green Block): Isolated dual-terminal block to send high-wattage power to your passive subwoofer driver.
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