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KLee-327
1
Dec 28, 2020
I have been using the CTH with my Shure 846. There is a definite hiss on the left channel. No problem when I use the 846 with other sources or the CTH with my Senn 6XX. From prior posts, there are mixed opinions on whether this is due to a poor match between the CTH and IEMs, a problem with the tubes, or something else. Has anyone found a fix?
Fayne
2586
Jan 5, 2021
KLee-327Pretty much any ultra-sensitive earphone or IEM will have similar problems. Lots of background noise and hum. Or at least has this has been what I've seen with my CTH. For example the Meze 99 is very unhappy on my CTH, and the only IEM I've been able to use on it without major noise is the Pinnacle PX. I've rolled my 6922 tubes numerous times and found the same. Current production EH, JJ, Genalex, all the same levels of noise. Even NOS JAN Sylvania and JAN GE had the same problems. Also the same problems with JAN GE 5670W (with adapter to 6922). It is not the tubes. You might be able to use one of the iFi iEMatch types of things as they're designed to allow sensitive cans and IEM work on devices that are noisy. I don't personally have one as I've got enough cans and amps to allow me to work around this problem, so YMMV.
(Edited)
KLee-327
1
Jan 5, 2021
FayneHi Fayne, thanks very much for the advice and suggestions. I had thought it might have been my cable or a loose connection but I think those are not the issues. I guess I will just stay with the Senn with the amp. Thanks again for your help.
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