User Feedback for Sophia Electric Blue Glass 6SN7 Tubes
I received the order and have used the tubes.
I was replacing a set of Sophia clear glass 6SN7 tubes which I felt one was loosing its value and was 2db quieter that the other.
I elected on getting the 10% matched pair (Grade A) of the new style Blue tubes.
After careful warming of the tubes I started using them in a Modwright modified OPPO BDP-105 CD player. I was not expecting much difference in what I had before. I was so very wrong. I am absolutely gobsmacked at the difference.
I could hardly believe what I was hearing. Everything was different.
All of the tones, harmonics, decays from the music was now there to hear. Everything from top to bottom was given more life air and rightness. I tried all types of music from acoustic guitar, folk, new-age, live rock to classical. All of the music was vastly improved, everything more of a whole. And some of these are just run of the mill Redbook CDs. This is just stunning to me that these tubes have taken this somewhat modest setup and made it world class maybe even reference class. Amazing.
You have really created something special here. I am so glad I tried these tubes and can now stop trying to convince myself to purchase a $10,000.00+ CD player. I now feel I have it for the cost of a tube upgrade.
Michael from Washington
|From Audiogon Furum: "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 :)
We have seen great strides in development of state-of-the art capacitors, resistors, transformers from Mundorf, V-Caps, Vishay and others. These latest electronic parts are lowering the noise floor, expanding the frequencies in the high treble and low bass, and adding extraordinary imaging clarity and spatial transparency to the music. Unless we have similar advancements in new generation of tubes, it won’t matter. We will be dependent on the NOS tubes designs from the 1950s or 60s to provide musical truths.
I love the blue glass 6SN7 tubes. They are a definite improvement over the regular Sophia 6SN7 that I had peviously in my amps. The new 6SN7s work beautifully with the blue glass 300b and 274B tubes I have in the amps. Music has a natural flow and instruments and voices sound so real. I have tried many 6sn7s and I have to say your blue glass version is the best I have yet to hear in my 300b amps. Congratulations.
WOWIE ZOWIE! This thing sounds sooooo perfect in my Bob Latino ST-120 amp.
I've tried CBS Hytron 5692, Sylvania Chrome Dome, Ratheon and Russian 6H8C. Until now, the Sylvania's were my favorite. Decently clean and clear with a good amount of tube lushness and sparkle. I'd read online about Sophia Electric 6SN7 tubes and thought I'd give them a shot. I first tried the old, clear-glass 6SN7 tube. Pretty good. Cleaner, clearer with better speed and depth than any NOS tubes I had tried. Impressive. It was just lacking a bit of that 6SN7 lushness. Then a put in the blue glass 6SN7... this was EXACTLY what I had been looking for. Like the old style, it was clean and clear with a very black background and no hint of grain, but it sounded like a TUBE. Guitars and percussions got their weight back. Bass was bold and pronounced, but still tight and well defined. I remember listening to Weezer's Say It Ain't So on vinyl. The weight and crunch of the guitars was so real, I could almost SEE the amps. It was unreal.
All that to say, I could not be happier with this tube. Thank you guys so much for making such an amazing product!
David from California