Audio Horizons TP 2.0 Preamplifier

I would be curious to hear Victor's or Joseph's view on popping the top as well. Obviously, removing the top would be to eliminate vibrations, so why wasn't this issue looked at by Joseph in his initial design? Wouldn't taping some anti-vibration( dampening) material on key locations of the inside of the top be accomplishing the same result as removing the top? I haven't yet taken the time to try mine with the top off.

I have been listening to the AH pre with Amperex Bugle Boy tubes instead of the tubes sent with the unit - Siemens Gold Pin. After a couple of hours I like the Amperex's very much indeed. The highs are a tad sweeter and the mids a little more full. The bass is not as deep and powerful.

Stage size and fullness of sound seems much improved with the Amperex's. May have lost the last bit of clean/transparency however.

I will need to listen more. The Amperex Bugle Boy tubes can be had on Ebay for about 1/3 the cost of the Siemens and to my ears sound very musical.

I will listen more.

I also placed an order for the Herbie Audio Halo tube dampers and Myrtle wood blocks.

Bill

Amperex Bugle Boys are a classic. I'm not surprised you might prefer them to Siemens if you like a slightly colored sound.

Grannyring, if your Amperex are NOS, then they might need at least 24-48 hours to break-in. I'm anxious to hear your impressions as well.

Ok another 3 hours of listening tonight with the Amperex's. I like them better in my system then the Siemens. No doubt. Goodness the music was so special tonight. My Proceed PMDT died and my sense is it would sound better with the Siemens as it had a full, deep sound.

My new transport is a tad more transparent and forward and it seems to like the Amperex's. I know it is based on ones total system matching a likes. I am in sonic heavewn today with these Amperex's however. They are staying in!