Audio Horizons TP 2.0 Preamplifier

Hi Rob,

This was a fairly common problem with all my tube preamps of the past.

You could try cleaning all the tube pins with Caig, if it still persists, you may have a slightly finicky/faulty tube that might need replacing.

I'm sure the ceramic tube sockets are OK, they're high quality and grip like a vice.

Thanks, Rx8man...

One question that I still have: What are positions 1 & 3 used for, and what do positions 2 & 4 do on the TP 2.0?

Rob

Rob,
Perhaps Joseph or Victor can answer your question best. All they told me, back when I was tube-rolling, was that locations 1 & 3 were the most critical for the sound. I would imagine that these are in the signal path. As to what locations 2 & 4 do, I can only take a layman's guess that they are for regulation. It's best to ask the "Master"( J. Chow) himself.

I'm new to AH, now trying out a modded 2.0 before ordering a 2.1. I've talked to Joe quite a bit and to answer about the tubes, 1 and 3 amplify, 2 and 4 are buffers. I love the preamp and after 2 days have already decided to order a new one and this is after living with an $8500 CJ 16LS II for over 3 years. Thanks to Grannyring for the recommendation. The demo doesn't work with my Atma-Sphere amps in balanced mode but even through the RCAs it's obviously a great preamp. I can't wait to hear the 2.1 in balanced mode as I'm sure it will be an improvement. This is the first thread my lazy ass has ever bothered to reply but this product is worth it.

David,
Welcome to the most exclusive pre amp club in town.