Upgrade from Martin Logan Sequel II's to ????????

I am the ATC importer to the us so I am horribly biased. But I do have a many many years of selling high end  audio in stores and also I have learned a lot working for different loudspeaker companies.  I was a big fan of Maggie’s back in the day.  
 

Panel speakers- dipoles- are the most room dependent speakers you can buy.  Dipoles are ALL about the room.  In a great room where the speakers are placed right (large spaces with lots of space in front and back) they can be glorious.  They can work in small spaces but it’s rare. C

”box” speakers are designed for “half spaces”, or a normal room with speakers placed on one end.   This is usually easier to make work as you aren’t dealing with output in two different directions.  Acoustics are extremely complex and much harder than any other part of home audio.   It’s fine to take this on if you love science, but for most of us, figuring out the rest of the system is hard enough!  
 

My suggestion is to find a way to try a pair of good box speakers in your room. If it’s ATC, something like the new scm20a would tell you need to know. 
 

brad

Open Baffle speakers:

- Caladan

- Spatial Audio

- Pure Audio Project

These do show up on the used market from time to time too.

Thanks lonemountain

At one time I was even thinking of covering the back of the Martin Logan panels just to hear the difference. I also have a pair of Maggies but they came unglued and I have not listened to them in 15 years.

Since your are a distributor, where are you located?

Well I heard the ATC 40's and really liked them. They are a bit on the small side for me. (size wise) I think part of what I was/am looking for in upgraded speakers is larger sound (for lack of a better description at this moment). That means two things, I need to extend my budget to between 5k and 10k. And, perhaps shoot for the ATC 100 or 150's.