Any Present Magnepan 3.7i owner using them in a smaller listening space...

I own 3.6 Maggies and have had the in 3 very different rooms due to moving over the past 17 years.  They can work in your room, but the universal truth about Maggies is have more than enough power (current), install Mye stands or simikiar and treat your room with diffusers behind them.

Placement and addition room treatments will fine tune the room and the Maggie magic can be realized.  I cannot emphasize enough that having substantial power makes them sing.  I have been using MC501s, and the move up from lesser power (300 woc into 4 ohms) was more than noticeable. 
Good luck on your journey!!

Hi All... Great suggestions and recommendations.  I know having enough clean quality power is really important especially with amplifiers that are able to drive current.  I'm also big on room treatments and with the right combination of proper attenuation and diffusion, the room can improve the listening experience tremendously.  In my opinion room treatments are a necessity to get the best sound from your system.  

Hi All... Great suggestions and recommendations.  I know having enough clean quality power is really important especially with amplifiers that are able to drive current.  I'm also big on room treatments and with the right combination of proper attenuation and diffusion, the room can improve the listening experience tremendously.  In my opinion room treatments are a necessity to get the best sound from your system.  

If you can put them against the 10 foot wall definitely go for it.

I run 3.7’s in a 13x17 room with them placed along the 13’ wall 32”-36” out and angled slightly toward seating position. Seating position is a unilateral triangle with the speakers. Electronics are on the outside with 2 rel s510’s between the speakers. Both front and back walls are treated with sound absorption. I spend hours in bliss amazed at the sound, soundstage and clarity. Have listened to systems at dealers costing north of 6 figures and, to my ears, don’t think I would do an even swap. Good listening.

My room dimensions are VERY similar to yours with the rear of the room (behind the listening position) open to the next level - which helps and I have 3.7i's. Maggies are fine to be placed closer to the outer walls than traditional speakers as they do not create the first reflection on the side walls to the extent most speakers do. It took some fine tuning to get it all right, but the sound stage created by my setup extends behind the rear wall and beyond the left and right walls. (see my system profile) I was originally going to purchase 1.7i’s but went for it and never have regretted it for one instant! Friends who are audio enthusiasts have given me positive reviews for the fabulous sound - and they would be honest with me if it wasn’t.