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CJ preamp upgrade suggestions

I'm currently considering upgrading my PR16LS2 to one of the following: ET5, ACT2S2 or GAT (the GAT would be a stretch). My system consists of an Esoteric K-03, CJ PR16LS2, CJ LP140M monoblocks, Focal Electra 1008 BE monitors, JL Audio F110 sub, Siltech IC and SC, Running Springs Haley power conditioner and Acoustic Zen Gargantua and Krakatoa PC. Our listening room is 20x22 feet with 9 foot ceilings. We listen mostly to jazz and love vocals and acoustic instruments. Periodically we listen to classic rock and larger scale classical music. I'm at an age where I intend this to be my final set of system upgrades. Your thoughts are appreciated.
Thanks.
mfoley3
jafant's avatar
jafant
19,677 posts
 
All-

any tube-rolling suggestions for a CJ ET-5 & ET-3SE ?
Thank You and Happy Listeing!
mfoley3 OP
47 posts
 
Hi Guys, I'm pleased with the Telefunkens. The bass is tighter and seems more extended, the midrange is more open, dynamics are improved and the soundstage is more believable. Vocals and acoustic instruments sound wonderful. The only downside is that poorer recordings seem to have a bit of "tizziness" that I don't recall with the stock tubes. Upscale recommended their Telefunken Platinum version for use in the higher end CJ preamps such as the ET5. The cost is $10 per tube I believe. Overall, a highly recommended tweak.
tomcy6's avatar
tomcy6
2,590 posts
 
Hi Mfoley,

I'm glad the Telefunkens sound good to you. Telefunkens are known in audiophile circles for their clarity, neutrality and long life. While generalizations don't tell us what a given tube will sound like in a given component or system, it sounds like that description could be what's causing the tizziness on poor recordings. Maybe you're just hearing some distortion that is on the recording.

I would first recommend that you give the tubes and GAT a little time to settle in or break in, which I'm sure you were going to do anyway. Then, if you decide you want something a little warmer or more forgiving, there are plenty of tubes that fit that description.

Enjoy your music!

Tom
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