Audio Horizons TP 2.0 Preamplifier

Rhyno,
Rolling tubes in 2 and 4 also made a difference to my ears. Joseph told me from day one that 1 and 3 were more critical to the sound, but 2 and 4 also play a role in the overall sonics, IMHO. (o:

Recently I aquired a AH TP2.0. This particular one has no output transformers. Were these transformers offered as an upgrade at the time of its conception?

Phd,
I think you are referring to the output transformers that would be used for balanced output. Yes, the output transformers were an upgrade from the base model. I think you could have your unit modified by Joseph. As Gammajo suggested, talk with Victor.

Cedar, thankyou for answering my question. I called Joseph Chow on the phone and he suggested I send an email with questions. I did several days ago but I haven't received a reply. Probably just a busy time of the year.