Audio Horizons TP 2.0 Preamplifier

Anyone famaliar with the manufacturer,and in particular
this pre amp.The credentials and testimonials seem
impressive.The advertised 10 day audition is appealing.
My room is 20' x 20' x 9'. Two adjacent walls have large openings, so the effective volume is larger than the measurements indicate.
I use a digital source.
The loudspeakers are specified at 92 dB with a minimum impedance of 10 ohms.
I listen to music at a volume that doesn't exceed 85dB, which is typical of what I hear when I attend the opera, seated within 15 rows of the orchestra pit.
Did you ever talk with Joseph or Victor about lowering the gain on the preamp? I noticed that on their web site specs, the 2.1 comes standard with 20db gain, but 10db gain with "B" upgrade.
No I didn't,I will be raising that issue with Joseph when I send the unit to AH for a full upgrade,Clarity caps,power supply,Vishay resistors,transformers,etc.Talk soon.
I look forward to hearing your impressions after the upgrade. I am particularly interested at this time in the Vishay resistors. How many, what locations, and cost. I wish Joseph would upgrade his web site for current upgrades.