Reference preamp with laid back and relaxed highs


I'm looking for a reference preamp with relaxed, and laid back highs and upper mids.

Balanced outputs are required.

Budget is open at this time.

The last preamp I owned that had the characteristics I loved was the Lamm LL2 Deluxe, but it does not have balanced outs.

Thanks in advance.
tvad
"I assume balanced is preferable to single ended".

It sure is if a long run of IC generates some noise from RFI. Unless you have 'fully balanced' components though I don't know how much you would gain, sans RFI noise (assuming proper electrical matching). Have you actually had a chance to compare balanced v non balanced? FWIW, in view of your experience with and preference for the Lamm, unless I had an extant noise problem I'd pass on fully balanced circuitry or just the facility to use balanced IC's.

BTW, another FWIW, there is always a tradeoff in component selection and/or design, and I think the most ellusive one is any component that has both tight/deep bass, lifelike mid-range qualties, and slightly soft (rolled) upper mids/highs. You can get any one of these three segments by itself but usually tight bass and brightish upper-mids/highs or rolled highs/mids and slower bass seem to go together, kinda immutable - the exact reason so many folks pass on both and just go for the mid-range. BTW, for myself I've always been interested in the Joule, Herron and Lamm stuff - but the stock market hasn't been kind to me this year! :-( Maybe in the next year or two. :-)
my experience suggests you will not find such a preamp in production in 2008. coloration is what most designers try to avoid.

consider vintage preamps, such as cj, mfa, and audio research. you have more information and experience than most of us, so you are probably aware of the usual suspects, i.e., products of the 80's and 70's. it is possible that you don't want to go there. if that is the case, perhaps you could consider shindo preamps. i have not heard them, but, if i were searching for a current preamp, i would want to hear one.

just one more thing. i have never found lamm products particularly warm or tube like in the classic sense. i have auditioned many systems using lamm amps and preamps. with the exception of one, they have sounded closer to truth than beauty. the one exception was lamm with tannoy speakers at a stereophile show in ny about 4 years ago.
This suggestion maybe from left field,I personally really like the Cello preamps,they all come with balanced outputs but they are fischer,which may require a custom cable atleast on the output of the preamp.Down side they are hard to find in good condition,however the sound is fantastic,