Good Pre Amp W/Remote for Marsh A400s Amp??

You might want to consider a Krell KRC-3 or one of the newer Krell preamps if your budget permits. I had the Parasound Halo P3; not a bad preamp but I was never entirely satisfyed with it. The Krell KRC-3 outdid it by quite a margin.

There are obviously going to be synergies with the Marsh pre. If I were you I'd start with a P2000b that you can probably get for 700 bucks or so, and then let something else try to better it in areas that matter to you. By the way, Marsh amps produce much better sound from the balanced inputs so that's the way I'd run it. Can't imagine you'd be unhappy with the Marsh pre especially since you already seem to take to the Marsh sound, and it's certainly a low-risk way to start both monitarily and sonically. Best of luck.

There are 3 or 4 Pass Labs X-1s for sale on Audiogon. One of them belongs to me. The price is right and you can not find a better built or sounding preamp in the 2K price range.