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Small green circuit board with large silver heatsink, silver knobs and acrylic case parts

Audio Amplifier Board 2.1CH 50W x 2 +100W Subwoofer Power

SKU CH-J5Q9-1YFX5

Bluetooth 5.0 amplifier board delivers 2.1 channel audio with 50W per satellite and 100W subwoofer output plus treble and bass controls

  • Bluetooth 5.0 wireless streaming up to 15 m range
  • 1 channel output delivers 50 W per satellite plus 100 W subwoofer power
  • Independent treble and bass knobs give direct tone control
  • Extra-large heat sink sustains high-power operation without thermal throttling
  • Compact 10 × 10 × 2.2 cm board fits DIY speaker builds

Bluetooth 5.0 Amplifier Board

This 2.1 channel amplifier board delivers 50W per stereo channel plus 100W for a subwoofer. It suits DIY speaker builders who want integrated Bluetooth 5.0 and wired AUX input in a compact module. The board includes treble and bass controls for direct tone adjustment without an external preamp.

Wireless Range and Input Constraints

Bluetooth 5.0 provides a stable connection up to 15 metres or 49 feet from the source device. AUX input requires the Bluetooth link to be disconnected first, so simultaneous wired and wireless playback is not supported. The module accepts 4 to 8 ohm speakers, with 20 to 100W units recommended for best results.

Upgrade from Basic Amplifier Modules

This board replaces simpler amp boards that lack Bluetooth, subwoofer output, or onboard tone controls. The jump is worthwhile when you need wireless streaming, dedicated bass amplification, and physical treble and bass knobs in a single 10 by 10 by 2.2 cm package. It is not for systems requiring multi-room synchronisation or digital optical inputs.

How it compares

Measured against everything we stock in Hi-Fi Components & Accessories, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 62% of the 410 comparable items (median $60.99).

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 50 W stereo channels or the 100 W subwoofer channel for my build?

The board delivers both simultaneously: two 50 W channels for left and right speakers plus a dedicated 100 W subwoofer output, so you get full 2.1‑channel sound from one module.

What does the 50 W x 2 + 100 W rating mean when the amp is driving real speakers?

It means each main channel can supply up to 50 W into a 4–8 Ω load while the subwoofer channel supplies up to 100 W, giving a combined 2.1‑channel output for a complete speaker system.

How does Bluetooth 5.0 limit the wireless range in practice?

Bluetooth 5.0 on this module provides a stable connection up to 15 m (49 ft) from the source device, which is the practical wireless range for streaming audio.

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