Audio Horizons TP 2.0 Preamplifier

For those who have rolled NOS tubes in the TP2.0 or TP2.1, would you please describe the sonic differences you observed compared to the stock EH69222 tubes?

Thanks.
Tvad (Threads | Answers)

No need to re-post unless you choose to do so. I went back through the thread and read some observations, so my question is essentially answered.

I found NOS tubes really improved the overall sound of this preamp. I highly reccommend the Siemens tubes that Joseph places in the unit as an upgrade. I tried some nice Mullards and Amperex Bugle Boy (white lbl), but over time I found the Siemens to be the perfect balance of neutrality and warmth. The Mullards were wonderful, but a little to "tubey" for my ears. Lost some of the transparency and softened up the dynamics a little to much. At first I loved them, but over time I found the above to be true.

To my ears the stock tubes lacked body and warmth and in the end were just less musical.

These comments are relative of coarse as the unit sounded very good with stock tubes. NOS's did improve the sound as noted above.

Bill

Bill, if you knew Tvad like I think I know him, I'll be willing to bet that he's already cherry-picked a NOS pair of Siemens CCa to try in locations one and three. By the way, I'm currently beta-testing( so to speak) a new, unknown power cord line and this new cord has raised my system to a new level of sonic bliss for me. I've only tried one version on my VAC monoblocs, but later this week I am going to put another version on my TP 2.0n preamp. I feel like a kid on Christmas Eve. What a thrill!

Hey Sherod,be a good sport and share the name of the power cord with us.That will be 2 drinks I owe.

09-17-07: Sherod
Bill, if you knew Tvad like I think I know him, I'll be willing to bet that he's already cherry-picked a NOS pair of Siemens CCa to try in locations one and three.

I don't own any at present, but I have a local buddy who will lend me a pair. I helped him find a very nice set of CCa earlier this year.

I just ordered a quad of Mullard 6922 from Tubemonger.