"Hi Ron, the tubes arrived on Friday and I swapped out the Telefunkens I was using in my Blue Circle preamp and have to admit these tubes are terrific as mentioned in your add. I noticed better more focused bass and better dynamics, I would add to this a wider and higher soundstage, better resolution and more natual balanced timbre. I am very happy with my purchase, these are an outstanding value far superior to the stock eh tubes that come standard in my pre amp. Best Regards, -Tim Schultz"
"Hello Ron, I have received the second set of Cryo EH KT88s, just set the tubes in my amp, and wow man, great sound better than every other tube I have ever had. The stage is great and details is big. I expected that this will more growing after break-in time but I am very glad about this! Best Regards, Hank"
"Hi Ron, The tubes are definetely better sounding than the original GT-EL34Rs that were in my Crate VX5212 guitar amp. They are louder, more detailed and full body sounding! Thanx, - Michael"