Magnepan 3.7's versus 20.1's?

Dsper, I think the 3.7's will do fine in your room.

I know what you mean about the wait. As I recall, the 1.7's were delayed for a while because their milling machine went down. The 3.7's if I remember correctly started shipping not long after their introduction at CES. The Mini Maggies took two years, but that was because they had to catch up on the .7's first. I'm thinking that a call to the factory makes sense, before everyone leaves for the holidays. The may be able to give you an idea of when they'll ship.

S_c123, there's someone on the Planar Asylum who's putting together a system similar to yours, Tympani 1-D bass panels + MG IIIA's. I'm sure he'll be pleased to hear that you've gotten such good results. I'm curious though -- why did you combine the III's with the IV's, which already have a dedicated mid and a ribbon? Are you crossing over lower down for a 4-way, e.g., at 80 or 100 Hz?

I have a pair of IVA's myself, and plan to run them with the mid/tweeter panel separate because of space limitations. But the crossover is higher, about 300 Hz. I'm also planning to replace the midrange of the IVA's with BG Neo-8's, which are push-pull quasi-ribbon planars. Satie on the Planar Asylum has done this with his IV's and says the quality is comparable to the 20.1's.

The 3.7 lost its bi-amp capability because of the new crossover design, which is apparently first order. If it's like the 1.7's, it's also a series crossover. You could of course go inside the speaker . . .

Yep. However, it was never a question of whether it would happen but whether it would happen this year, and initially even Magnepan didn't know, because they didn't know how long it would take to improve the 20.1.

Still, who was it whose dealer told him it was coming several months ago? And someone else said no, it was going to be a new Tympani? He's officially the winner of that debate, heh.

20.7 is now official:

http://www.avguide.com/blog/first-listen-magnepan-s-new-flagship-207-loudspeaker

Houston Reef, you can do it, but it will be tight. You'll probably want to run them tweeters out to keep the bass panels off the wall. Figure you'll want the tweeters about 8' apart and the speakers should be 2' from the side walls, you have just enough room to do that tweeters out. The only real risk here is that a small room can boost the bass. Then you'd have to EQ it back down.