Telling if Bryston pre has upgraded power supply..

I believe it was $US 300 for the power supply. If you have a very old BP-25 I think you need to upgrade the electronics to use the new PS. I think that costs $US 1000.

In my situation I had purchased my pre-amp new about 4 years ago so I had the latest electronics on the pre-amp. The only thing lacking on mine, from todays latest and greatest model, was the new power supply. You can email Bryston and ask them if you pre-amp has the latest electronics.

email: jamestanner@bryston.ca

How much did the upgrade cost, is you don't mind me asking.

This new power supply is a fanastic upgrade (I had old pre-PS before). It made my system sound so much more alive and open. I hear more detail in my tunes. My BP-25 used to be the weakest link in my system, but not anymore.