I recently bought a pair of the TJ Full Music 12ax7's for my McIntosh C220 preamp. A significant improvement over the stock tubes. I have about 50 hours on them and they are not coming out of my preamp any time soon. I had tried a pair of Telefunkens and I prefer the TJ Full Music tubes. Very smooth, full-bodied and balanced across the audio spectrum. I have no affiliation with the company and I don't know how they will sound on other equipment but on my McIntosh they sound great.
12AX7 tube alternatives for Jolida JD-100
After using Mullard, Telefunken and Amperex 12AX7s, I've substituted 5751 command series blackplate, 12AU7WA, GE5814 and 6414 Raytheon blackplate, a 12AT7 variant.
I thought the 5751 was nice with lower gain and warmth, but still had grain that smears sound.
The AU7 and its variant was too sterile.
I'm impressed with the 6414. Focused sound, holographic, good bottom to top presentation without being too edgy.
Anyone else tried something like this?
I thought the 5751 was nice with lower gain and warmth, but still had grain that smears sound.
The AU7 and its variant was too sterile.
I'm impressed with the 6414. Focused sound, holographic, good bottom to top presentation without being too edgy.
Anyone else tried something like this?