Martin Logan vs. Everything

If the OP loves his ML, that’s fantastic. Easier on his wallet.

@tony1954 I agree but it was kind of an open question ( "Fight me." ) to who likes or dislikes them. (poll?)

I think they have a very serious product line and the science behind. It's a matter of preference. Comparing them to Magicos is a compliment.

MGIIs in '70s, box spkr x 12, Quad ESL63, box speaker, EMT LFT8C for now is giving me ribbon, planar, and two dynamic drivers.

I have kinda given up on chasing now, and I'm not recommending a different speaker. Look at "previously owned" speakers available for audition. It's not yanking their chain, you might find what you are looking for. 

I have ML Montis speakers in my 2 channel room and I love them just as much as the original poster on this thread.  I have heavily treated my room to make them as good as I possibly can, and I spent hours and hours and hours dialing them into the "perfect" location for my main listening chair.  I agree that the shortcoming of these speakers is the very small sweet spot for listening.  If I move to the adjacent chair in my room, the sound stage is underwhelming and not even close to what I experience in my primary listening spot.  For me, this is fine because I am the sole listener for 99% of the time that music is played in this room.

I have visited many high-end audio stores in search of a system that sounds better, but I have not found that system yet (and I have listened to some very pricey systems).   I would love to find something that I like better, but I haven't - so I guess that's good news.  I'm sure my wife is happy that I am happy with the current system! 

ML is a very good loudspeaker.  To think that you should go looking for something better is childish if you enjoy what you're hearing now.

I first heard 'stats about 40 years ago.  I ran a pair of X-Static EC-X loudspeakers (very similar to your ML 13a) for about 10 years.  I loved the tonal balance but they just never imaged all that well for me.  Like your ML, they were a curved diaphram electrostat.  I paired them with some subs I designed.

In 2006 I moved on from them to some custom built Linkwitz Orions, which I still run to this day.  The Orions have a very similar tonal balance to my old 'stats, but image extremely well.  They are truly exceptional on voices and acoustic piano and they can deliver level and dynamics your ML 13a could only dream about.  Level and dynamics are the one short coming of 'stats.    You may think you have good dynamics, but you don't.  Really.

The Linkwitz designs are mostly home-brew DIY systems, though there is a company in Europe that sells turnkey versions of the LX521 for about $20k.  You can build the LX521 system, with amplification, for as little as $6k.  It's an extraordinary loudspeaker system with even more dynamics than my Orions.

Don't look around to find someone who has them and go listen.  It would break your heart.