I've had to change my method concerning running in 7581's from 4 in my Euforia to two in each, Euforia and Elise both in the driver position. I just wasn't feeling the vib after 30ish hours burn in 4x 7581 or 3x7581 and EL39 in Euforia. Euforia is now running with 2x 7581 as drivers and 2xEL39 powers and sounding very good. I realise nowhere near 150hrs burn-
in but as I tend to run tubes in whilst listening to music and need to be enjoying what I'm listening to. Hope to eventually end up with 3x7581 and EL39 in Euforia, well run in and at least somewhere near H1 results.
Should say H1 that these are Tung Sol 7581's. If I'd kept the first 4 USSR made tubes I would not have been able to compare results with everybody else.
Hi bt...and yes indeed, early days as yet. If I personally hadn't persevered with 7581As driving the same (and the EL39 for that matter!), I would never have known their eventual true potential lol. I can only hope that time will do the same for yourself - and anyone else for that matter
. In fact, for the first time ever, I postponed going back to listen to them as drivers, I was that disappointed. But now, I could never go back to even my beloved mesh-plate EL11s...
...
However, as per usual - different systems/ears/preferences etc., not to mention adjustment to different sound presentation. I myself have been a
very long time moving away from what many aficionados would regard as a topmost presentation - the clarity and more treble-biased combo of the C3g driving the hallowed GEC/Osram family of 6AS7G power for example. But I now crave a more 'full-bodied' sound, with more emphasis on bass, and mids especially...hence my preference for Euforia over Elise. And fortunately, the current combo in my own setup provides this in spades, without losing either treble presence or clarity. I hope wholeheartedly that other systems can approach this sound, assuming that is in fact one's cup of tea lol!
...there's more than one road to Nirvana...
...
So, good luck with the burn-in mon ami...CJ
ps. I'm sure 2x EL39s as powers will still be hard to beat lol!...