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Green printed circuit board with black components and terminal blocks

Ruth's sister

Ruth's sister XY-AP50H internal power cable

SKU CH-XW70-TSM28 MPN XY-AP50H

Class D stereo amplifier board with Bluetooth, AUX, USB-C disk and USB-C sound card inputs delivering 20 W per channel at 12 V into 4 Ω

  • Bluetooth and wired inputs give flexible playback
  • 20 W per channel into 4 Ω at 12 V
  • Built-in protections prevent damage from faults
  • App control switches modes and sound effects
  • Supports 10–200 W passive or active speakers

What this board does

This Ruth's sister XY-AP50H board is a Class D stereo amplifier built around a single XY-AP15H chip. It delivers up to 20 watts per channel into a 4-ohm load at 12 volts and accepts DC input from 5 to 27 volts. The unit ships as a bare board that requires the user to fit the protection circuitry and heat sink.

Who it suits and who it does not

Makers building compact audio projects who can provide their own enclosure, cooling and protection board will find the flexible 5-27 V supply range and four input modes practical. Buyers needing a finished, ready-to-play amplifier with integrated heat-sinking and certified safety compliance should look at complete modules instead.

The spec that decides fit

Maximum output is 20 watts per channel at 12 volts into 4 ohms; at 8 ohms the same supply yields 10 watts per channel. If your speakers demand more continuous power or a different impedance match, this board will not meet the requirement.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 80% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What input voltage range can the XY-AP50H board accept for continuous operation?

The board runs on a DC supply between 5 V and 27 V rated at 2 A or more.

Does the amplifier include a heatsink or must I fit one myself?

The heatsink and protection board are not fitted; the note states you need to install them yourself.

What speaker impedances and power ratings are supported by the stereo outputs?

Left and right channels drive 4 Ω or 8 Ω speakers rated from 10 W up to 200 W.

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