connieflyer
Headphoneus Supremus
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- Aug 23, 2012
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Rigjt you are CJ, the combo is the best I have used, especially as a pretty amp. System is stable and continues to improve with further burn in
It was not the tubes, my demo model is broken. Let's see if the shop will honor its obligations.Warming up my new Euforia. Maybe a tube is bad, since I have a slight murmle in my left ear. It won't become worse on higher volumes. I like my old Hifiman 400i with Forza Noir Hybride cable a lot, even better than the T1.2. I guess I like the planar sound. I guess I should be saving for the Meze.
Currently the only tune amp i can listen with headphone is my tweaked CTH with single E188CC or 6922..Hi hpamdr...long time no hear. Hope you and your system are in fine health.
Anyhow it was just some advise to detect if tube are 100% perfect or not. I've used those to do some filtering on tube i got in large unsorted/tested lot (after minimal testing in lampmeter)...And these KT tubes don't seem to have been displaying any kind of problem re microphonics thus far...
At this point, one can only surmise therefore that for some strange reason, something unusual is happening in cf's dual adapter/KT88/GU50 setup per se? I shall substitute one of my GEC TT21s for a GL KT88 and see what happens in my own setup...although my environment is different, of course, as well as my own dualing lol!...The plot thickens...
Currently the only tune amp i can listen with headphone is my tweaked CTH with single E188CC or 6922..
Anyhow it was just some advise to detect if tube are 100% perfect or not. I've used those to do some filtering on tube i got in large unsorted/tested lot (after minimal testing in lampmeter)...
Using additional dual adapter to have more space and do a mechanical decoupling can be a quick test..
Another idea would be to also heat externally KT88 by another external power supply. (Using the same 12.6V powersupply in serie should also be an alternative only with same 6.3 tubes heater resistance to have V1=V2= Vext/2 )
2CJ, you could also try to pair EL39 and GU50 to check if it sound as good as TT21 or not ?
Quick Update regarding my KT88 QUAD having problems I recently changed out my DAC and tried the QUAD setup again with NO PROBLEMS that I was previously having. I think I may have had a connection seated incorrectly giving the problem from before. I also switched the KT88's around as well and it sounds awesome as usual. But this time for some reason my Sony Z1R's are sounding the best I ever listened too since I have had them. My Utopia's and Empyrean's are pretty much the same as before very good but I am loving the sound better with the Sony's.
Going to Audition the Chord Dave today for the second time but with the M Scaler this time. I am pretty impressed with the Dave first DAC I have listened too that sounds so effortless on doing it's job.
It was not the tubes, my demo model is broken. Let's see if the shop will honor its obligations.
Hope the amp is still working...Well You may want to reconsider the use of the Chinese dual adapters. In ouramp I was using a pair of GU50 and Katie 77 and a dual adapter and things were working very well sounded fantastic in fact. Decided I should go back and try the KT88 in this duel adapter to see if it was still buzzing I did that and it was still buzzing so I swapped in the KT66 and that buzzed went back to the Kati 77 and no buzz now thought OK let's try the adapter from the KT77 and put that on the KT88 which is the same adapter did that and it still buzzed turn everything off one more time figured OK it's gotta be and in compatibility with the Katy 88 and Katie 66 with the GU50 make sense they're the only ones that buzzed but the KT77 back in turn the system back on was listening to it things sounded good then I heard a snap saw wisp of smoke cut the power fuse did not blow I have opened the ample fire up but cannot find any sign of a melted component so it must be on the reverse side of the circuit board that is out of sight either that or I partially dodged a bullet but either way bear in mind if you use the dual adapters from China you may or may not have a problem. I had used these same adapters in the E least app and just started using it in the ear foria when this problem arose. So please be aware of the risk you may be taking
Well You may want to reconsider the use of the Chinese dual adapters. In ouramp I was using a pair of GU50 and Katie 77 and a dual adapter and things were working very well sounded fantastic in fact. Decided I should go back and try the KT88 in this duel adapter to see if it was still buzzing I did that and it was still buzzing so I swapped in the KT66 and that buzzed went back to the Kati 77 and no buzz now thought OK let's try the adapter from the KT77 and put that on the KT88 which is the same adapter did that and it still buzzed turn everything off one more time figured OK it's gotta be and in compatibility with the Katy 88 and Katie 66 with the GU50 make sense they're the only ones that buzzed but the KT77 back in turn the system back on was listening to it things sounded good then I heard a snap saw wisp of smoke cut the power fuse did not blow I have opened the ample fire up but cannot find any sign of a melted component so it must be on the reverse side of the circuit board that is out of sight either that or I partially dodged a bullet but either way bear in mind if you use the dual adapters from China you may or may not have a problem. I had used these same adapters in the E least app and just started using it in the ear foria when this problem arose. So please be aware of the risk you may be taking
Going to Audition the Chord Dave today for the second time but with the M Scaler this time. I am pretty impressed with the Dave first DAC I have listened too that sounds so effortless on doing it's job.
I've read a lot about Chord DACs and M-Scaler because I am also interested in the topic. Some claim that Qutest with M-Scaler is a totally different beast than standalone. It would be interesting if you could do a Qutest + M-Scaler vs Dave + M-Scaler and see if the huge difference in price makes sense for you or not. Honestly, if you will use an external amplifier I am not sure if it makes sense to pay for an integrated one. I am also thinking about buying an M-Scaler because it is compatible with Qutest / TT2 / Dave and might be future proof.
Hi. cf.Rigjt you are CJ, the combo is the best I have used, especially as a pretty amp. System is stable and continues to improve with further burn in