Sophia Electric New EL34 tubes

Hello bradf - 
Got a heads up about this thread from you via PM.  Thought it might be something you'd intended for someone else.  Thanks for the thought if otherwise.  I no longer have any gear using EL34 tubes.  Best regards, GH.

@wig, some of us have been trying to get some feedback on the new 
sophia blues.  Thanks for providing a brief encouragement.  This is a recent thread where @winoguy17 was looking specifically for feed back on the 6SN7.  I think we would love to hear more regarding your experience with the sophias vs. various NOS tubes.  I'm also interested in the 274B.  Some say that is a pretty good tube in ModWright power supplies, and I had thought to give it a try.  Any additional thoughts from you would be most helpful.

@ brownsfan

The Aqua 274B was a transformation in my Modwright Marantz SA 8005 SACD Player with a 9.0 PS; it was like a DAC upgrade in comparison to Mullards, Create, Gold Lion, Tungsol and Philips which was my 2nd best sounding tube.

The Sophia 6SN7 Blue tubes were utilized in both my tube amp and tube pre-amp and sounded better than my Sylvania VT 231, Sylvania W, Sylvania WGTA, Slyvania Bad Boys, Chrome Domes, Ken Rads, RCA 5692, CV-181 and Raytheon VT-231 Gray Glass; better imaging, detail, deeper and wider sound stage with lower floor noise but it’s the musicality that draws you in...

Also, the Sophia Blue KT88 beats all of my back-ups with a much more refined presentation and pin-point placement of images with-in the soundstage with more vivid colors and life-like sound quality, it just sounds real; compared to Ruby, Golden Voice, KT88Z and Gold Lions.

These Sophia tubes just have everything to include dimensionality, clarity, richness and warmth without sounding slow, bloated or congested and at some point will fill the remaining 6SN7s positions in both amp and pre :)

Wig

@wig , thanks, this is very helpful.  I will probably pick up a 274B to try in my PS 9.0.  So far, the Canadian Westinghouse  V-71 is the best rectifier I've come across by a substantial margin, including the GZ34 Mullard and the Philips tube that Dan Wright prefers.  Brent Jesse put me on to the Westinghouse, but as far as I can tell, these are now unavailable.  I've had two of these tubes go bad in the last 12 years or so, and I still have 2 spares, but I'd love to find a current production alternative. 
I need 8 6SN7s in my AtmaSphere amps.  I won't be spending $1600 to retube my M-60s.  Also, there is not space for more than 2 of the Sophias per channel.   I may pick up one pair to rotate through the 4 positions just to see what gives.  You've given me some good advise in the past so I trust your ears.  But those 6SN7s are mighty pricey.