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Opinions on vintage cj amps and Teflon cap mods

I'm seeking opinions on having a vintage amp modified/updated. While I'm enjoying my conrad johnson Premier V as is, I can hear some significant differences when compared to some of the more modern amps I've heard. In my opinion, the sound I'm getting from my system is too soft, particularly the leading edge of notes and the upper base/lower mids. Decay, air, ambiance and overall musicality are great IMO. conrad johnson is offering modifications to the Premier 4&5 amplifiers which would include a new power supply and Teflon capacitors. What's crucial to me, is that I'm looking to improve the amplifiers performance, not just change it. The cj person I talked with said they've modified a couple of the Premier 4s with "smashing success". Thanks in advance for your experiences and opinions.
phaelon

Showing 1 response by hotsauce

hotsauce
108 posts
 
If CJ is doing the mods themselves they should be able to give you more specific details on the change in sound you can expect.

Power supply caps are often deteriorated in vintage amps. I've refurbished a pair of Fisher 80AZ's, and a pair of Dynaco Mk III both with new power supply caps, and teflon coupling caps.

I've been very pleased wherever I've been able to afford to use teflon caps. The DO take seriuos amounts of break in time to sound right, and may even sound worse initially.

John C.
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