Hi, one thing that quickly resolves it as well is just changing to other EL34 tubes. I was using Shuguang 6ca7z, and it seems to be the only tubes that had this issue using low and UL setting. Switching back to stock EL34 and there's no problem.
I have some noise from my PC by USB port it's silent when I use notebook as a source so I'm looking for streamer that work with HA-6A without noise. Can anyone recommend please?
I had a similar issue to this on my HA 6A. Had a similar high pitched tone on my verite closed headphones. It was slightly better on single ended and using a preamp before the HA 6A. I figured it was an impedance matching issue. I ended up getting an impedance adapter made by a friend and no longer have this issue.
But the problem only occur with 300ohm ZMF headphones at low impedance setting, and you won't encounter similar problem with low impedance headphones at the same impedance setting, maybe it is an impedance mismatch problem.
I have some noise from my PC by USB port it's silent when I use notebook as a source so I'm looking for streamer that work with HA-6A without noise. Can anyone recommend please?
Have you tried adding an isolator between the PC and DAC? Something like iFi iGalvanic3.0 USB might solve your problem.
Alternatively, look for streamer or digital transport with coaxial or AES/EBU output. This will get rid of USB Audio in your music chain completely, and in many cases, offer a very silent background in your system.
I'm looking at the Ha-6A to drive my susvaras. I'm currently using a denafrips hyperion power amp but am unsure if the HA-6A can drive my cans. Anyone have any experiences with HA-6A + susvara? Would really appreciate some feedback. Thanks!
I'm looking at the Ha-6A to drive my susvaras. I'm currently using a denafrips hyperion power amp but am unsure if the HA-6A can drive my cans. Anyone have any experiences with HA-6A + susvara? Would really appreciate some feedback. Thanks!
Anyone knows a good site to buy replacement 22DE4 tubes? I was also wondering if they need to be matched for the rectifier. I am hearing hum and hiss on mine and I want to try to replace them to see if it fixes the problem.
Anyone knows a good site to buy replacement 22DE4 tubes? I was also wondering if they need to be matched for the rectifier. I am hearing hum and hiss on mine and I want to try to replace them to see if it fixes the problem.
Bass impact is definitely a little more on solid state power amp however not by much. The ha 6a drives the really well and the trade offs are well worth it. The kt88 generally give more bass impact while the el34 sound more natural over all. I use winged c svetlana el34 and the telefunken new kt88. Then I switch between Sylvania 22de4 and ge both nos. The pre amp tubes (12au7) I have a pair of super rare pinched waist ones.
No, they don't. One of the main purpose of the rectifying circuit is to isolate the power supply circuitry into independent sections and minimise interference from each other, so they rectifier tubes are supposed to be independent from each other, hence they don't need to be matched.
Anyone knows a good site to buy replacement 22DE4 tubes? I was also wondering if they need to be matched for the rectifier. I am hearing hum and hiss on mine and I want to try to replace them to see if it fixes the problem.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.