KEF PSW 2000 2010 2500 Subwoofer NO SOUND n BUZZING NOISE Look before CERTIFIED Yours

• The maintenance kit contains 11 components including high quality audio capacitors (-40 to 110 deg C) and a matched pair of ST transistors.
• Brief instructions provided.
• Suitable for maintenance to prolong life of KEF PSW2000 PSW 2010 PSW2500 prior to notorious premature malfunctioning caused by overheating cap failure, for such as the KEF subwoofer,
• The KEF subwoofer main amplifier board shown in the diagram is for reference only and not included in the kit.

Packing list

turbotenna

Description

This thing sounds so brilliantly when it's healthy.

Perhaps my experience of servicing my KEF subwoofer might benefit others.

The kit contains 11 components including high quality audio capacitors (-40 to 110 deg C) and a matched pair of ST transistors from my MOQ order that now become surplus.

Suitable for maintenance to prolong life of KEF PSW2000 PSW 2010 PSW2500 prior to notorious premature malfunctioning caused by overheating cap failure, for such as the KEF subwoofer and board shown in the listing pictures (not included in this Buy-it-now/ auction).

Not like for like components replacement - bigger isn't always better though. Optimal values are used to bring the best out of these subwoofers.

The kit has also successfully repaired many with no sound and buzzing noise problem.

For lack of base punch and distortion, you might need replacing the two 12000uF power audio capacitors as well.

Please look elsewhere if your subwoofer has repeatedly blown fuse, hum noise (mostly related to other electronic circuitries other than the power supply caps) that's not easy to fix.

For those with soldering experience. Care must be taken to match the polarity of electrolytic capacitor with the original ones. You might want to photo the circuit and components before starting the work, cos wrong polarity could be fatal. Also, do not touch the AC components including the fuse, power transformer, rectifier diode bridge, etc.

Brief instructions provided.

Nice weekend project - a bit challenging but satisfying if you know what you are doing.