2. amps-preamps
  3. 1251159450

cj Premier 11 capacitor upgrade

Looking at conrad johnson's website, I see that they're offering their C1 capacitor upgrade to several vintage amps/preamps including the Premier 11. These are their proprietary Teflon capacitors. I always thought that the Premier 11 was a very musical little amp and would welcome anyone who has either had or heard this upgrade to comment.
phaelon
phaelon OP
1,053 posts
 
Hi Ddrave44,
Just to be clear, you had the Teflon cap upgrade offered by conrad johnson? They are supposed to require a lengthy break-in and sound terrible until they do.
downunder
1,329 posts
 
Hi Phaelon

No the teflon caps do not sound terrible on the amplifiers - they will get better but will sound pretty good off the bat. You get more body, flow and slightly better dynamics as the caps break in.

OTOH, the pre amp with teflon caps changes quite a bit over the break in.
downunder
1,329 posts
 
Hi Ddrave

In my experience you will not get much if any additional bass with the teflon caps, even after break in. The bass will breath better. - so the LP140's will have the advantage in ultimate bass impact.

But as you said, all other aspects of the sound change for the better.

Cap upgrade, expensive yes, but well worth it and much cheaper than LP140's or LP275's.
ddrave44
148 posts
 
Hi Downunder- Thanks for letting me know what to expect. I appreciate it.
And Hi Phaelon- Yes, CJ did the work.
Like Phaelon said, these sounded much improved as soon as they came back. CJ told me that they ran the amps for a while once the work was done. I'm not sure, but I wouldn't think that they ran them for more than a day or two. If they get even better on further break in that would be good too!
I've heard the Premier 11 and its a nice amp. I'll be interested to see what you find if you get the upgrade done. Good Luck.
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