Audio Horizons TP 2.0 Preamplifier

You're welcome, Ozzy. Once you get back home for some serious listening evaluations, I look forward to your impressions.

I brought Ozzy's perception that there "does seem to be a shift in center stage to the right of center" to Joseph's attention, since we are always attentive to ways to improve the preamp.

Here is Joseph's response, edited just a little: "The gain deviation between channels is 0.2 dB; the tracking error from the volume pot is -1 dB or better when the volume pot is set at -60dB position. This could be an issue for the n version since it has higher gain than nB if the system has highly sensitive loudspeakers. It will be hard to find tighter tolerance available from the supplier of the motorized pot; it will be much easier to get regular pot in tighter tolerance."

I take this to mean that while the the output deviation is small, at some points on the pot at certain gains, with certain highly sensitive speakers, a 1 dB deviation between channels could occur. Sometimes other factors unrelated to the preamp can also contribute a small amount to the perceived deviation.

I take it, without his needing to comment, that Joseph will look for a tighter tolerance pot.

Thank you for bringing this to our attention.

Victor

Victor,
Gammajo took the words right out of my mouth.

I have the remote version with all of the upgrades and here is what I have found. So many variables impact channel balance that moving my head an inch or two to the right or left is all that is needed to get to that SWEET SPOT of perfect channel balance.

My furniture placement, the recording, room treatments, room shape, other gear and the ear wax level in a particular ear! all impact channel balance. No issue at all with my AH preamp's ability to throw a perfect center image. In fact, this pre is the champ at throwing a wall of sound with a wonderful center image. I find using the XLR's outs also improves the size and focus of the stage.

My only issue is wondering if I should spend the $300 on the new upgrades? How much better is it etc..............

Bill