Audio Horizons TP 2.0 Preamplifier

hi sherod ~ sorry for the late reply. not sure about
the answer regarding the sovtek since i don't know much
about tubes. i got my ah with eh tubes on #2&3 with the
low noise siemens on #1&3 but later switched to the sovtek
6h30pi after hearing a more favorable difference. i'm still deciding whether to upgrade to the 6h30dr hence my previous inquiry, i'm also considering the nos siemens cca, maybe i should pay joseph a visit soon in order to compare the two different sounding aforementioned tubes, it has been a while since i paid joseph a visit, i hear also that he's a quite ping pong player will see about that :o).

Jojo,
Did you check with Joseph about using the 6h30pi as a replacement? As I recall the 6h30 tube has different filament and power supply requirements than the e88cc tube.

Regarding the 6h30 tube, Jojo, go back to page 6 and 7 of this thread and read where Markwattkiss was going to try this tube as a replacement.

Yes you may want to reconsider using the super tube,I was advised personally by Joseph not to go there.I still owe Sherod a beer in that regard.

sherod ~ joseph is aware of my usage of the 6h30pi, thx for the page reference.