Powered by a 24V supply, this analog 2.1-channel motherboard uses pairs of power transistors (such as 2SC5200/2SA1943 or similar three-pin power tubes) and BTL circuitry to drive high-wattage stereo output and a dedicated subwoofer, featuring onboard relay protection, large cooling heatsinks, and analog potentiometers for rich, low-distortion Hi-Fi audio.
KSh 1,850
2.1-channel amplifier green motherboard taking a 24V DC input is a compact audio board designed to power a full 2.1 speaker setup—typically delivering 50W each to left and right satellite speakers plus 100W to a dedicated subwoofer (often powered by dual TPA3116D2 chips). Built on a classic green fiberglass PCB with aluminum heatsinks for cooling, it features onboard potentiometers for adjusting master volume, treble, and subwoofer bass, making it an efficient, all-in-one solution for DIY speaker builds and custom audio setups.
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