Which amp?

[fvale]

My main speakers are based on Altec Duplex 605A with Jeff Markwart's phase corrected filters in a about 9cu feet cabinet. I would like to upgrade from my old McIntosh MC30 tube amps. What would you pick from following list?

Marantz 8B tube amp
Mark levinson 29 (should have 50W)
Spectral DMA50 (50W) or DMA100 (100W)
Goldmund Mimesis 3 (100W)

[zelgall]

What don't you like about the MC30's? What would you like more or less of?

[fvale]

I like the 30s but after many years of owning I'd like to change. Also because once I compared them with a friend's Marantz 8B which was (in his system) MUCH better.
That time I found my 30s really disappointing! I'll keep them but would like to upgrade, so I wanted to get informations/suggestions from other users.

[speakerdave]

A Harman Kardon Citation II worked very well with my 604 8G's.

David