Amp to drive Dynaudio C-1


I'm currently running an ARC VT-100mkIII but it runs out of juice when you are pushing it. I have been told that pass amps sound great and they give a tubelike quality. I would like to stay with tubes but for the power I need it is going to be too pricey. Your suggestions are welcome.
taters
C-1's are great, and I have heard them sound tremendously impressive with Gamut mono blocks. If I had C-1's, that's where I would go.
I ran Dynaudio Contour S1.4 with McCormack amps and it was very good. Fast, clean, nuetral and musical. The dealer carried McCormack and CJ in addition to Sim Audio. I have heard all three thru the Dyns and all are more than capable.
I ran mine with a Musical Fidelity Tri Vista 300. A nice warm sound with buckets of power in reserve. Tasty!
I second Musical Fidelity. In addition to the Tri Vista 300, a solid state model to consider might be the M6PRX, a 260w/ch dual mono power amp. The M6PRX has received stellar reviews, but for whatever reason, you don’t hear much about it here on Audiogon.

I use it in combination with the solid state M6PRE to run B&W 804 Diamonds in a room that doesn't remotely lend itself to warmth (hardwood floors, plaster walls and ceiling, and only a few pieces of upholstered furniture) yet the sound is still remarkably warm.

There’s a used M6PRX available on Audiogon right now, the first one I’ve seen listed in the past 6 months or more. The seller (who I don’t know) is asking $2100, which is a very good buy. List price new is $3500, and even at $3500 the M6PRX compares favorably with amps that cost more.

The seller’s ad says he has been using the M6PRX with Dynaudio Contour S3.4s with excellent results.
I am currently driving my C1 signatures with an Octave V70SE. The only time it runs out of steam is when I run it with the EL34's. No problem with 6550's KT88's or KT90's. Dyn's sound best with high current amps. Unfortunately most manufacturers do not offer current ratings in their specs.