mordy
Headphoneus Supremus
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- Aug 8, 2010
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Which tube are you referring to?
Which tube are you referring to?
That's funny - I also have an updated copy of p.77 next to my computer. Speaking of the 6BE6 TS tubes - did you notice any change in the sound as time goes on?
I'm following in the wake here guys, and very grateful to everyone who's done all this awesome work.
Graduated from the regular pentodes to Tung-Sol 6AH6WA and thought the performance of the amp went up a whole class or two. Then came the first heptode, Telefunken EK90, and it got even better.
But not till after burn-in. For the first few hours, the sound was refined, but thin and the image set well back. I had to turn the volume up 1-2 points on the dial and even then there was energy lacking. However, after only 10-12 hours they sound like different tubes, precise focus, rich sound, if anything a little too immediate. I've not known a tube change so much so quickly. I see mab is keen on these - was this your experience? I'm looking forward to trying them strapped.
Had a similar experience with the RCA 6BY6 heptodes. They sounded good, but suddenly after around 40 hours they "woke up" and the low end become much better. Wonder if others have had such experiences with heptodes?
Seems that many tubes need around 20 hours of burn in, some around 50 hours, and of course the champ here is the Voskhods that need 120 hours!
i'm sure it has been discussed, but can someone explain "strapping"? When and how would I need to do it? I am curious about the EK90 and how it would sound.
i'm sure it has been discussed, but can someone explain "strapping"? When and how would I need to do it? I am curious about the EK90 and how it would sound.
Hi everyone,
Am still loving the Siemens EK90s to death - looking forward to seeing how the TFK EK90s compare. Mab : I am so sorry you have had trouble finding some Siemens - I do hope you manage to get some soon...
Re burn-in time - mine certainly benefited from 40+hours, which I would assume goes for other 6BE6s also...
Re 1-7 strapping - loud, yes; full, yes; exciting, yes; extended/enhanced treble, yes. BUT...on first listening, some of Genesis's 'Duke' tracks (the massively 'full' numbers) - the WOW almost turned to OW! There seemed to me, anyhow, a somewhat definite loss of overall control/integration. I wonder if anyone else has noticed this to any degree with similarly full/complex(especially electronic) music. Perhaps 'reviving' #3 needs some burn-in time also?...Or do I just need to 'recalibrate' my hearing?!!!Shall have to try further similar tracks...
Hi everyone,
Am still loving the Siemens EK90s to death - looking forward to seeing how the TFK EK90s compare. Mab : I am so sorry you have had trouble finding some Siemens - I do hope you manage to get some soon...
Re burn-in time - mine certainly benefited from 40+hours, which I would assume goes for other 6BE6s also...
Re 1-7 strapping - loud, yes; full, yes; exciting, yes; extended/enhanced treble, yes. BUT...on first listening, some of Genesis's 'Duke' tracks (the massively 'full' numbers) - the WOW almost turned to OW! There seemed to me, anyhow, a somewhat definite loss of overall control/integration. I wonder if anyone else has noticed this to any degree with similarly full/complex(especially electronic) music. Perhaps 'reviving' #3 needs some burn-in time also?...Or do I just need to 'recalibrate' my hearing?!!!Shall have to try further similar tracks...
I actually ordered a pair from NOSTUBESTORE, the owner reached out to their depot for some more since we bought them all up.
they are Haltron re-branded but Siemens under the covers.
Thanks to Gibosi for tipping me off!