Interesting you should mention Agave. I happen to know quite a bit about it, but super top secret. Mum's the word. My lips are sealed. Lose lips sink ships. Those who don't know are talking; those who know are keeping silent. Etc.
First time for TS5998s in my Euforia.
Absolutely wonderful. I am coming to believe that Euforia is so good that tubes may not be as critical as they are in Elise.
Hey pct...I want to know more about this Agave - spill the beans, man!!!
...
Anyway, as I have managed to grab a few spare moments to let y'all know I am indeed still alive, and bore you with yet another massive missive, your statement - that I've emboldened (yes, that's the correct term, don't you know!) - is in fact very timely. It is both true and false, m'Lud!
In general it would appear to be so - as I myself (and others) have previously stated. AND, as I have already covered ad nauseum, upgrading other elements in the system
can bring much greater improvements overall....
HOWEVER...the addition of my Naim Uniti Core and Balanced AC Mains unit (with Advanced Filter System - the ASF3000) has finally confirmed
to me, and
in my particular system, that the out-of-favour EL tubes - in my case, mesh-plate Valvo EL11 drivers (and one Australian EL3N
G) and EL12 Spezial powers - surpass any other combo I have ever tried, and which include drivers generally regarded 'better' than any 6SN7 lol!
At this point, I want to emphasise that my position goes against that recommended by F-A, and is only undertaken on the understanding that I (and anyone else) do so purely at one's own risk. But speaking of 'risk'... with regard to the EL3N/EL11/EL12, my own feeling (based upon amateur logic) is that as these tubes have the transformer AND casing run barely warm, I personally cannot see how they could cause any problems related to overheating...but I'm open to any and all explanations as to how this could possibly happen!
OK...so what has convinced me of my conclusions?...Well, apart from various top grade 6SN7s used, including different VT231s/NU Black Glass/Sylvania 7N7 ('Chrome Dome'), my last comparison was using the Mullard ECC31s driving GEC CV2523 powers...(the 31s being, of course, basically the same as the famous ECC32, but with common cathode, and as such generally accepted by afficianados as 'better' than 6SN7s per se).
Anyway, at first I was taken aback at the sound that filled my ears - especially the incredible bass and mids, and was even more impressed than before the Naim and BM unit were in place. So I waited a couple of days for the amp (and my ears!) to readjust...and then I had the shock of my life - there were so many aspects of the presentation that simply came nowhere near my 11/12 Spez combo (I shall call #2, the 31/GECs #1)....viz :
1. Although #1's bass was more forceful, #2's had better detail, control and balance. The lower frequencies dominated much more in #1...far too much for my own particular taste.
2. Instrument/voice separation was much better in #2, giving greater clarity, positioning and overall coherence.
3. Soundstage was much more expansive in #2, with wonderful spatial quality, air and 3-dimensionality. No other tube combo has given me this degree of feeling "out there in Space", with no hint of compression whatsoever...or such a sense of natural, effortless flow of sound. "Immersion" is total, but not in any artificial way...it just feels
right...
4. The entire #2 FR was presented in perfect balance - no single section dominating whatsoever. Bass was tight, and still with sufficient force/'slam'; mids gave vocals all the depth and timbre needed for different tonal ranges, along with relevant instruments of course!; and treble extended as far as you'd be able to hear, but again with great control and finesse (and the most delicious shimmer and decay I've ever heard).
5. Immaculate Pace, Rhythm and Timing (#2) kept the delivery precise and the flow unwavering...with wonderful transient handling - highlighted especially by the tremendous guitar playing (and masterly recording) of Maury Muehleisen and Jim Croce in the various numbers they performed together...truly mesmerising!
I could say more, but I think I've already caused enough indigestion to last a lifetime lol!
...
I must repeat, however, that the Naim and ASF3000 have helped immensely in highlighting these qualities, and that my own particular tubes are adapted by myself...with the caveat that the EL11/12 family (apart from the straight-sided EL12N) can be somewhat unreliable, being very old tubes in the main. They are also, of course, not officially endorsed by F-A.
Anyway, this will probably be my last BIG post, so I shall finish for now with a few relevant photos :
Mesh-plate Australian Philips EL3NG + mesh-plate Valvo EL11 drivers; Telefunken EL12 Spezial powers (#2 combo)
Especially for "Blue" lover -
@connieflyer (and you,
@pctazhp?!)....the glow from my Airlink Transformers ASF3000 Balanced AC Mains unit (with Avery Magnetics Advanced Filter System) :
And lastly the usurped ECC31/GEC CV2523 setup :
Time for nightcap and early zzzzzzzzzzz
BFN guys....CHEERS!....and HAPPY LISTENING, whatever your favourite setup!...CJ