Martin Logan Quest Z Bass - can it be fixed ?

The only ML's I've liked are the ESL's sans dynamic drivers. As much as I like to listen to them, I couldn't live with them. Please keep in mind, like most panels they can sound very different in different rooms, and they can be quite fussy about set up. Not the easiest or cheapest to amplify properly either.

Mikey44, the ML's are bear to drive, puny amps need not apply. These measurements suggest that the specs don't really indicate just how difficult:
http://stereophile.com/content/martinlogan-quest-z-loudspeaker-measurements
My suggestion is to buy amplifiers for speakers, not speakers for amplifiers. Most of the speakers you seem to be considering are not easy loads. Think in terms of total system synergy.

Coltrane1, the only bubble you might be bursting is the one containing your credibility. 85 dB? Is that a sales pitch in the middle of your thread? Sure you, might be satisfied with the results of your system, and while I'm confident that some here might enjoy some aspects of the sound it's producing, some would also be disappointed with the inability of the ML's to perform at it's best in other circumstances.

FWIW, IMHO, There are things that the ML's do better than the Maggies, but ultimately I prefer the overall balance of the Maggies. I think the 3 series is the sweet spot in the Maggie line, with enough range and balance not to leave one (well maybe just me :-)) wanting, and ultimately providing the most satisfaction for the money.

How about an older pair of the Maggie 3 series? The 1+1's were nice in their day, but how would you get them serviced today?
What happened with the Thiel 3.5's?

Coltrane, Well look who's calling the kettle black, perhaps you might remember your previous post here and before:
http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1291996908&openusid&zzColtrane1&4&5#Coltrane1
I offered a question, an answer to which might provide clarification, as one might have construed that one should act fast before you actually pull your ad.
Perhaps you should re-read my post too. I made no hard and fast recommendations, but your advice seemed to suggest that your recommendation, due to your experience was superior, despite your claims that you seem to prefer to listen at less than realistic levels and despite what appeared to be a technical compromise. It was you that started to step on other opinions in order to promote your own.
Perhaps we can start over in a more polite manner?

O.K., then.