Hi Hypnos1,
Are these tubes them?
Cost: $399.00
Hi mordy.
$399? Are you kidding?!! Mind you, it's nice to know my used ones at a fraction of the cost are in such hallowed company. NO tube is worth that kind of money in my book...
But yes, they're the ones - except not enough of the writing is left to discern the date...shame. So the moral to everyone is...wait until some decent used ones come along. All I can say is the wait should be well worth it.
As an update to my previous post, with further settling in (even though they are used, they really improved after several hours - perhaps the cleaned pins (not that they were badly corroded) needed the extra time) they have trounced the Voskhods. After the emotional response - which perhaps is the best judge? - my analytical side is kicking in (it needs to make sense of that emotion - leopard/spots?!)..
Anyway here goes :
Bass - As mentioned before, DETAILED. But add MORE extended than the Voskhods even. Tight? - Ouch! And never drowns other frequencies. Have never before felt it in my bones to this degree...
Mids - All there. Wonderfully detailed, clear/clean, without the tendency to be over-'lush' as can happen with so many of the Philips group variants. Even the lower mids/upper bass of acoustic guitar (via Clannad's PastPresent) had my bones tingling...
Treble - 'Scintillating' would be the first word that comes to mind (being emotional again!). OK, back to analytical : Extended; clear; massive detail/variety throughout the entire high frequency range, with a delicious decay to cymbals etc. Again, as with the bass, without imposition and no undue sibilance.
Soundstage - Wide and deep; instrument separation clearly defined yet nicely integrated; vocals positioned so as to sound 'intimate' without being TOO forward - all in all wonderfully 3D, with the (for me) vital sense of 'airiness' and space.
Transients - This is an area that until now I didn't really grasp or appreciate. I think I have suddenly been enlightened - if I'm right, they impart a magical ingredient to music enjoyment, viz : sudden, fleeting sounds that hit your senses and have you wondering "where on Earth did THEY come from?". I suppose it's an extension to overall detail, that otherwise would just get lost in the 'jungle' of sound. Whatever, tracks that I thought I knew well are in some cases sounding vastly different - depending, presumably, on the recording engineer's prowess...
And all these elements mesh together - in a beautifully silent/clear backdrop - to a degree that seems faultless, and in a way (with my setup anyway) that far exceeds anything I have ever encountered in these past months of trying countless tubes (but not as many as others, I have to admit).
Hopefully I have given a true and fair view of these particular tubes, and trust that anyone else lucky enough to find some at a reasonable cost will have a similar
eureka experience - mine appears to be similar to AFB and Gibosi with their early '60s Amperexes...This (seemingly) long journey has been WELL worthwhile - thank goodness!!
Edit - As an added bonus, these tubes are now making my HD650s sound just as good as (the memory of) the MUCH more expensive 700s...