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kef kube 103.3 power supply and board upgrade

vishalk

vishalk

Active Member
Hi All

So i received a pair of lovely 103.3 with the kef kube.

As you can imagine they need some servicing. Unfortunately the PSU has seen better days and would like to upgrade it, perhaps use a torodial or rcore transformer instead. The output voltage is 19.1vac at 230vac. This drops down to around 18.4vac when connected to the kube. How many VA would i need? 30va 19-0-19 or even 20-0-20?

I would like to also upgrade the capacitors and opamps. Any suggestions for opamps?

Thanks

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