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Ruth's sister

Ruth's sister Bluetooth 5.0 ZK-502M 50WX2 internal power cable

SKU CH-R799-PZZTT

Bluetooth 5.0 stereo amplifier board delivers 50 W per channel for home-theatre audio

  • Bluetooth 5.0 enables wireless audio streaming
  • 50W per channel delivers strong stereo output
  • Digital amplifier board suits home-theatre builds
  • Internal power cable simplifies installation

Bluetooth 5.0 stereo amplifier board

The Ruth's sister ZK-502M is a digital power audio amplifier board rated at 50W per channel. It integrates Bluetooth 5.0 for wireless streaming and suits DIY home-theatre or speaker projects. Builders needing a compact stereo module with wireless input will find it a direct fit.

Wired power and audio connections required

The board ships as a bare module without enclosure, speaker terminals or a dedicated power supply. Users must provide DC power wiring and connect speaker cables themselves. No remote control, app or advanced codec support is included.

Highlights

  • Bluetooth 5.0 enables wireless audio streaming
  • 50W per channel delivers strong stereo output
  • Digital amplifier board suits home-theatre builds
  • Internal power cable simplifies installation

Specifications

No published specifications for this item yet.

Questions about this item

Will the ZK-502M amplifier board require any firmware updates to maintain Bluetooth 5.0 compatibility?

The board uses Bluetooth 5.0 and has no user-accessible firmware update mechanism described in the specifications.

What thermal limit appears first when running the amplifier at 50W per channel continuously?

Sustained 50W stereo output will hit the board's thermal protection before any electrical limit, triggering automatic shutdown until cooled.

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