Audio Horizons TP 2.0 Preamplifier

Sherod,
I've looked forward to reading your update. I'm glad to learn that all goes well. My system, too, has never sounded better. There is only one point in your report about which I may be able to suggest improvement. I see you haven't tried Joseph's speaker cables. They are excellent. I've been using them for months in my system. Break in time is pretty quick (40-50 hrs). I find two characteristics about these cables most striking. First, the tonal balance is wonderful - top to bottom there are no dull or hot frequencies. Second, the noise floor on them is very low. I was a Beta tester for Josph's cables; I heard the improvements in sound quality (via lower noise floor) he made in them. Of course, I also heard the great improvement in sound quality over the other cables I used previously.
So, I recommend that you give them a try.

Thanks, Cedar, for the recommendation on Joseph's speaker cables. I intend to try them, but I currently have three sets of speaker cables that I'm trying to narrow down to only one that I like the best and then I will order a set of Joseph's to do a final comparison. I also have his interconnects on my list to try, but same thing currently having several interconnects to find the best for comparison to Joseph's. I do have both Joseph's power cords and they are both in my main and 2nd systems. I have a lot of projects planned. My 1st is to have Joseph fine-tune my main tuner. I'm glad that you are enjoying Joseph's products. Keep in touch.

I have found that either I have defective Siemens E188CC tubes or they don't work well in tube placement 1 and 3 in the 2.0 preamp. The Siemens Cca and E88CC sound much better there.

Yes, Grant. That's what I have read as well. There are very subtle differences between the Cca and E88CC, but the E188CC sounds way off, a bit down in volume and disjointed soundstage, almost like an out-of-phase sound. I bought these on Ebay. Too bad we've already exchanged positive feedback, and the guy's in Germany. On Ebay, you take your chances and this time I lost. This should be a lesson to buy directly from qualified tube dealers.