Audio Horizons TP 2.0 Preamplifier

Thanks, Scifi. I'll pop the top on my preamp and look at the cap values. Joseph has always been nervous when people get into their preamp and make changes. No point stirring the pot. ;o)

Sherod

Caps you need to look at are behind the compliment of tubes on the right side in the rear of the unit. The V caps are very good. I have the TfTf's installed although if I had it to do over again I would opt for the copper V caps. Unfortunately the 2.0 copper V caps are very very pricey. Thus Joseph has opted to use the .22uF values of the copper V caps but in doing so it requires some sort to modding by Joseph in order to accommodate that value.

I'd like to know what Joseph charges for this mod to accommodate such a low output cap. The original TP 2.0 has a 4.7uf cap. Too low a value can raise the bass roll-off too much. I experimented with lower value caps in my TP 2.0 preamp and they just didn't sound right. I understand that this output cap is very important. I found the original Hovland and the Claritycap MR to sound the best. I would imagine that the V-Cap copper would be the best sounding of the lot, but like you said, they are very expensive and if a lower value can be used, then I'd like to know how.
I have been experimenting with electrolytic caps in my tuner power supply. The previous modder had Panasonic FC caps in there, an upgrade from the originals, but when I replaced those with Elna Silmic II caps, the sound improved greatly. I'm thinking about doing this in my preamp power supply.

I can't remember what the cap upgrade cost. It was done in conjunction with other upgrades including a new wiring harness etc.

Best to email Victor for a price quote.

I will say it has been my experience that Joseph's labor costs are very reasonable in all respects.

Scifi,

Thanks -- in the process.