Top Ten Tube PreAmp of all time?

Kublakhan Call Leonard at ARC (763) 577-9700 for upgrade info. I would also speak with Steve Huntley of http://www.greatnorthernsound.com phone 651-578-0657. Used to work for ARC and does mods. He would be throughly familiar with the differences and might offer greater insight. He personally has a 10 Mk2 that he has modified. Personally, I wouldn't pass on a SP-10 for a PH-3. If you ask Leonard I'm sure he would tell you that their current PH3 phono stage is better so I wouldn't be so ready to take his word for it.

hey tubegroover,thanks! Found INFO: leonard at audio research said he couldn't remember the price of the upgrade but it requires eliminating the phono buffer and changing all the output caps. there's a guy in Los Angeles named gary garfield at musical fidelity 310-558-0037 who does this kind of work FYI.
thanks again!!

Presence Audio Ultimate Linestage.

Dare I venture my definitive and humble opinion on the strength of many tubes that have crossed my threshold (and connected to my power circuit): C.A.T. Ultimate for line, for phono -- JP200 as per rcprince & detlof and SRPP (you had to build that one yourself. It had provision for 0,5 farad power supply for phono, direct line for *aux* with interchangeable capacitance loading and *silver alloy* recommended for internal wiring -- back in the late 70s!)
Admittedly, the CAT & JP80 are great all-rounders if U can afford them. SP6 & 10 are nice too, a bit ageing, however...