Audio Horizons TP 2.0 Preamplifier

Sherod - I tested my cca's as I took my AH unit part for shipping for upgrades this week. On my B&K 606 tester scores from 65 to 120 are Good. When the cca's were inserted in the AH in April of 2007, they averaged a score of 105. Now over three years later they are reading and average of 102.8. So it looks like we still have much life left on the tubes and the AH appears to be exceptionally easy on them.
Joe

Joe,
That's good to know. I've often wondered how easy or hard the preamp was on tubes. I'll rest easier now until I can get my own tubes checked. I just missed out on a tube tester on Ebay, but still enjoying the music. (o:

I wish i would have had better luck with my CCAs. I had them tested and 3 of the 4 were not even close. One of the 4 is acceptable barely. I ve had those in since early 08 and play a lot of music daily. Talking to Heinz he was surprised that my tubes had gone down that low in that amount of time. For now i m using 6H23 cryoed and for new they aint bad. I have about 50hrs now and music is sounding real nice. After day by day of listening i guess our brain gets accustomed to what we are hearing. I knew at the end that something was going because i know my system can sound better that it was. So if you havent checked those tubes lately you may be in for a surprise.

Interesting - thanks for the report. I have my system on for about 6-8 hours a day but playing music maybe two hours of that time

Well,
I finally found a deal on a tube tester on Ebay. It should arrive soon. In the meantime, I changed out my Siemens cca in location 1 and 3 with nos Siemens cca and the sound is so much more present and alive. I'm anxious to see what my old ones read at.