Choice of tube amp?

Before swapping amps please check following things also:Is your panels proper runnin in.They took lot of time to run in.Placement is also criticle and room treatment can cause sterile sound or un invoving.Your amp is very good and it might not getting the proper current etc.If things remain the same than go for tube.I use to have Martin Logan CLS for eight years and I used many amps on it ; Pass lab,Plinius,Mark levinson,Quad,CJ,Accuphase, etc.Each amp got strengths and weaknesses.Pass did a very good job with my panels.So did the CJ premier 11 and twelve.Before making any decissions first audition the short listed amp in your room and system thoroughly and then go for it.
Good Luck
AAK

Ali: My Summits have been played for thousands of hours, daily since last autumn :) I used 4 months on placement and I have specially made diffusors from Svanå Miljøakustik www.diffusor.com to control the backwave of the panels which are dialed in to perfection :) I`ve also vacuumed them as recommended by ML. So I started this thread to get tips as I`ve run out of choices with my systems components as it is. Moscode is noted, going to check`em out. I`ve also talked to Mick Maloney of Supratek, his new Malbecs are meant to drive stators and ribbons :)

As of now I`m very interested in the new Supratek 100 watters, Wolcott 120s and 240s, Vac Phi 300 and Rogue Zeus. Anyone here own or have any experiences with these amps regarding electrostats or have an insight to their sonic signature?

If you are running ESLs it is the nature of the technology that you will have to run tubes for best results. ML has set up the speakers at a low impedance in an attempt to make them work with transistors, but it is only half successful as you still deal with a dry coloration that is inescapable with most transistor amps due to the characteristics of the speaker (including the impedance curve).

The way you drive the speaker with tubes is to use an outboard device called the ZERO. This is an autoformer that is set up to allow a tube amp to be optimally loaded while at the same time being able to drive a very low impedance load. It would be nice if ML offered a higher impedance tap so that both tubes and transistors could be used...

Ya that zeus is a killer. I have a review on that amp from hifi choice i can fax