need suggestion about pre-amp, price around $5,000

To be honest, I haven't heard any of these but based on reviews here and various audio publications these are on my short list. Just waiting for the economy to improve before I pull the trigger:

Audio Research Ref 3
Ayre K-1xe
Hovland HP-200
Conrad Johnson LS-16 (version 2)

I too have heard very good things about the Cary.

Aesthetix Calypso or Calypso Signiture are worth consideration. I have been pleased with the performance of my Calypso for more than 3 years. Lots of reviews available.

Used Wyetech Opal, if you can find one. A pre like no other -- fast, giant soundstage, deep taut bass, you would hardly know it was tubes except for the magic. They come up rarely on Audiogon; when one does, grab it; it won't last.

Neal

Clearly the Sanders Sound line stage is better than any of those listed, and you can listen for 30 days.

I looked for a preamp for a fair amount of time and my short list was:
- AtmaSphere MP3
- Audio Valve Eklipse
- Herron VTSP2
- First Sound Presence
- Joule Electra LA150 MkIV (I think)
- Lamm LL2 Deluxe

So all tube units, and some more of a purist approach (Lamm, First Sound) and others with more bells and whistles (remote, XLR/RCA, etc). Even though I ended up buying the Lamm, I believe any of these would be pretty good in the dimensions you seek.

I hope this helps.