User Experiences on Sophia Electric Blue Glass 6SL7 Tubes

Sophia Electric 6SL7 tubes just arrived.

Sounds amazing—quite a musical tube. I noticed an apparent improvement in punch and trailing extensions, with tightness that is very well defined—quite 'fast' for tube performance! Additionally, there's greater depth in imaging compared to my previous Sylvania tube, which was slightly more upfront, and a noticeable increase in soundstage. These were the highlights during the first hour of listening. There's still a slight graininess, but I think it will smooth out over time. Great tube mate.

Johan, Malaysia

Hi Sue,

I received the 6SN7 and 6SL7 tubes yesterday, and they arrived very well packed and safely. I must say, these are some of the most beautiful tubes I’ve ever seen—so well made and absolutely stunning.

When I installed them in my Audio Space Galaxy, I immediately noticed a significant drop in the noise floor—it's quieter than ever before! The music is presented with much higher resolution, more spaciousness, and far more detail. At the same time, there’s an incredible clarity. I’m absolutely astounded by the huge improvement, far beyond what I had expected.

Best regards,

Greg, Australia

Susan just wanted to thank you again for your quick service for my 6SL7 tube order. As I mentioned before, in my 35+ years involved with tube audio, your tubes are the most transparent to the source I have experienced -- Beautiful tone, and a huge soundstage with ton’s of air. I have used a great deal of tubes both new and NOS tubes but to this day yours are the finest sounding that I have heard.

Again thanks very much for your prompt attention.

Regards Jeff

I just wanted to let you know that I am truly enjoying these tubes in my pre-amp! The overall balance is just stunning to say the least. I still feel they are settling in as they seemed a bit aggressive initially but I really noticed today how the high frequencies are becoming smoother and airier with a greater sense of effortlessness which is a good sign indeed and a very difficult aspect to achieve. My system has evolved over many years with essentially the same components but a lot of tweaking so it is very finely tuned and highly resolving. Image depth, soundstage width, dynamics and the overall ability to hear what is on the recording and connect to the performance is better realized with these tubes in a not so subtle way. In addition I want to thank you for the close match on the triodes of each tube, this along with the greater mutual conductance I measured compared to some of the other 6sn7 varieties I have on hand must be contributing a lot to what I am hearing. I had a friend over today who is quite familiar with my set-up and he was absolutely floored with the improvement.

William from Florida

Hi Richard,

I've only had my tubes (Sophia Electric 6SN7s and 6SL7s) for only four days!! Dam!! What can I say? Let's see? Sweetness, dynamics, large open and the airy soundstage!! Instruments float and hang forever in a midrange of musical bliss.

Vocals??!! Let's say this: Janice Borla has a CD “Agents of Change”. Her voice is a serious instrument. The listening session was so intense the other night that I could smell her breath. No doubt they are costly, but they are the best. My NOS Sylvanias aren't being missed even once. Here is my take on these products! Buy them!! Awesome!! Thank you, Sue and Richard.

Charles
Brooklyn, New York