I've had the Full Music 12ax7's in my Jolida JD100 CDP for a few days now and have to say I'm very impressed. I had thought the tubes I had in there were sounding a bit bright, but I wasn't sure if it was the tubes (Svetlana) or the Coincident CST interconnects I started using. The review I read on the Coincident CST's stated they were a bright sounding cable. Once I put the Full Music 12ax7's in place, I knew it was the tubes that were at fault.
I have had Telefunkens and Sylvania triple mica black plate 5751's in use before these and found I didn't care for the Telefunkens a bit. The Sylvanias sounded wonderful, but added too much bottom end to my system, so I went with the Svetlanas. The Svetlanas lack in the bottom end. With the Full Music tubes, the music is balanced from top to bottom. The drums on Chris Isaak's "Heart Shaped World" are incredible! Bass is pronounced, never muddied, but has impact, slam, chest pounding at higher volume. Always focused, sharp. The mids and highs shine through just as well as the bass. The guitar and percussion on Lee Ritenours' "Smoke and Mirrors" sounds wonderful. Rich. Silky smooth. Balanced and focused keep coming to mind. This is that "tube sound" I've been searching for.
Imaging is better, soundstage is better, sonics are wonderful, I am happier.
Yeah, these are keepers, and beat out the others in my system, like the previous posts. They will stay, and are a bargain for the sixty-nine dollars I paid for them. Could it be I'll start listening to vinyl less? Only time will tell. They are that good!