Which Super Integrated Amp to drive planars?

PS Audio GCC 250. Differentially balanced, full function remote includes L/R balance, input selection AND polarity- designated as "PHASE" on the remote.

Which spkrs are you driving? It helps to know -- otherwise, how can one recommend a specific amp?

As things stand, any of the amps you've listed (and I would add the Plinius, as above) will give you +20-25dB spl over the spkrs' ref level...

mac 6900 or 7000 with autoformers

Here's something different for you; take a look at the twin Pathos Classic One MkIII tube hybrid integrateds that I'm using. 270w into four ohms bridged, super-clean signal path as you run directly from source into the integrateds. You lose a preamp and one set of IC's, but you gain mono block operation for channel separation and power with a tube pre stage and SS output stage.

I have been using this set up with the LFT-8B's for months, and it is a superb combination! In fact, I used these amps in the review I did for these speakers. see link:

http://www.dagogo.com/EminentTech-LFT-8b.html

http://www.dagogo.com/PathosClassicOneMkIII.html

They're Class A in bridged mode, and you won't spend a ton on tubes! They have one set of balanced inputs, and three or four single ended. Last I looked they were $5,500/pair. I have found them very competitive with pre/amp separates up to $10k.

There was a guy I sold my MkII units to as I was upgrading to the MkIII's. He had Boulder separates, and he tried the Pathi. When speaking with him after they arrived, he was quite surprised at the quality of the sound compared to the Boulder separates. But the MkIII's are much better.

On top of all that, they look seriously sweet too! It is an unusual set up, but I have superb results with it.

Which spkrs are you driving? It helps to know -- otherwise, how can one recommend a specific amp?

My speakers are Eminent Technology LFT 8B.