Upgrade power supply for Harman Kardon HKTS 220/230 subwoofer: More power and sustainability

Introduction: Perfect sound, sustainably repaired

The Harman Kardon HKTS 220 subwoofer stands for powerful bass and impressive sound. But even the best devices can develop problems - often it affects the power supply. With our upgrade power supply and instructions, you can get your subwoofer up and running again quickly and easily.

Why an upgrade is worth it

  • Better sound: Enjoy clear and powerful bass.
  • Perfect fit: Perfectly matched for the Harman Kardon HKTS 220 SUB.
  • Easy installation: No soldering required, ready to use quickly.
  • Sustainable solution: Reduce electronic waste and extend the life of your device.


Innovative technology for better sound and easy installation.

This is how your spare part arrives

Sustainability is important to us:

  • Each power supply is packaged safely and as environmentally friendly as possible.
  • Our box is hand-printed with a loving design.


Well protected and shipped in an environmentally friendly manner – for an uncomplicated repair.

step-by-step repair instructions

  1. Preparation: Disconnect the subwoofer from the power supply.
  2. Disassembly: Loosen the screws and open the case.
  3. Disconnect connections: Disconnect all cables from the power supply.
  4. Replacing the power supply: Insert new power supply and connect cable.
  5. Test: Reassemble, connect and test the subwoofer.

A notice: We accept no liability for complaints from neighbors if the bass causes a stir again after the repair!

Conclusion: Sustainable repair that pays off

With our upgrade power supply, you not only get your Harman Kardon subwoofer working again, but also improve the sound quality. Benefit from easy installation, sustainable packaging and innovative technology.

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