Prices last checked October 20, 2026 · Amazon prices can move — the price at checkout is the real one

Shop ▸Accessories ▸Fosi Audio BT20A Bluetooth Stereo Amplifier

Fosi Audio · Amplifier

Fosi Audio BT20A Bluetooth Stereo Amplifier

A hide-inside-the-cabinet amp that makes passive speakers sound like an arcade, not a laptop.

  • Class D amp (TPA3116): 100W × 2, 2.0 channel
  • Bluetooth 5.0 plus wired input; bass and treble controls
  • Power supply included; compact in-cabinet chassis
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Best forBuilders wiring real passive speakers into a cabinet.

Sold and shipped by Amazon — tap through for the current price.

The BT20A is a compact Class D amp that drives a pair of passive cabinet speakers properly — 100W per channel on paper, Bluetooth 5.0 plus wired input, and bass and treble knobs on the front. The power supply is included and the chassis disappears inside a cabinet.

Monitor speakers are the weakest part of most builds; this fixes that for good.

✓ Why we like it

  • Far louder and cleaner than monitor speakers
  • Front-panel bass and treble controls
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Sinden · Light Gun

Sinden Lightgun with Recoil

The best modern light gun: works on any screen with no sensors. Sold direct by Sinden.

  • Camera-based tracking — LCD, OLED, projector and CRT
  • USB (5 m cable), 10 inputs, offscreen reload, recoil on this version
  • Windows, Linux, Raspberry Pi and MiSTer FPGA support
$169.99at Sinden
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Govee · LED Strip

Govee RGBIC LED Strip Lights (16.4 ft)

App-controlled color glow for marquees and cabinet interiors — the best-value finishing touch here.

  • 16.4 ft RGBIC strip — multiple colors simultaneously
  • Bluetooth app control, 64+ scene effects, music sync
  • Adhesive-backed; not designed to be cut
$9.00at Amazon
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MAYFLASH · Sensor Bar

MAYFLASH W010 DolphinBar Wireless Sensor Bar

The Dolphin emulator's favorite sensor bar — and the budget route to cabinet light-gun games.

  • USB sensor bar + Bluetooth adapter in one
  • Supports up to 4 Wii Remotes, Nunchuk and Classic Controller
  • Four modes including game light-gun mode; Dolphin compatible
$35.00at Amazon
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