Any Thoughts On These?


high-amp
As for the LSA-20, they appear to be yet another box speaker with yet another soft dome tweeter
Fortunately we don’t listen to appearances.  You might want to read up on some of the reviews and who designed them before just going simply on appearances.  Member Terry London bought the review pair after reviewing them for Stereo Times, but yeah, just another box speaker.

Haven’t heard the 60’s but brought the 20’s and 40’s into my space for side by side (thanks Crutchfield)...

20’s were ok but the 40’s are spectacular, IMO...
I've probably mentioned this many times before. Martin Logan seemed like an interesting choice at the time they first appeared on the market. Depending on what style of music you prefer and the electronics driving them.
Since then, there are literally dozens of new or improved designs available, many of which may provide a more pleasurable listening experience, driven by numerous choices of electronics and source material. Many may be a better sonic fit to you listening space.
I would agree with other writers. And, with a little effort, I think you can do better.  But I'm not going down the old "recommendation path". I would not be in a hurry. Create a list of possible choices and pricing. Audition as many as possible in an environment as close to your own room size and configuration. Don't be afraid to ask to have someone position the speakers you are auditioning, as close to the way you would need to set them up at your place. Take some suggestions that may help optimize your home setup. Somewhere along the line, I suspect that you will find the right speakers that "ring your audiophile bell".