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Distance from the front wall for magnepan mg 20.7

Would like to call out any maggie 20 series owners on how you have positioned your speakers from the front wall? Mine is 6.5feet out and 7 feet apart in my 17.5ft x 27ft room. Im sitting 11.5 ft away from the speakers. Ceiling height 8.5ft. Would like to maximize bass output without sacrificing imaging and depth. Have experimented a lot but would like to hear on actual user experiences.

I have read the cardas room placement suggestions and other basic positioning.

Also does the maggies prefer a dead silent front wall, diffused/absorbent combo or just do minimal damping?

Thanks for the replies...
lecram
hifi78
6 posts
 
Those who believe a sub will ruin imaging have heard the wrong sub or didn't know how to integrate it.  Buy a REL sub or two and you will be blown away.  
bdp24's avatar
bdp24
9,510 posts
 

Some Maggie experimenters are enthusiastic about locating the panels very close to (or right against) the side walls, with the tweeters "inside" (away from the wall) of course. The side wall acts as a baffle, preventing dipole cancellation on that side of the speaker. And unlike non-planars, placing Maggies so close to a side wall does not create drastic side-wall reflections to the degree the former do.

Others have added Tympani bass panels to single-panel Maggies. Those panels are the perfect sub for use with smaller Maggies, producing the best low end of any speaker I have ever heard. The Tympani’s require a lot of real estate, which you have.

Another good choice is an OB/Dipole sub, as those offered by GR Research in coordination with Rythmic Audio, as close to Tympani-quality bass as you can get. A VERY different kind of bass than that produced by sealed, ported, or even Infinite baffle designs. Leaner---no fat or "plumpness", no "room boom" (less excitation of the lateral room modes. Like planar loudspeakers, there is dipole cancellation to either side of the OB H- or W-frame). As a bonus, as the listening distance from the sub changes, it does so in exactly the same manner (SPL drop-off) as do planar loudspeakers, which is NOT the case with the other subs. With them, the loudspeaker/sub balance is "correct" at only one listening distance. With an OB/Dipole, the balance between it and the loudspeaker is the same at all distances.

antmou
8 posts
 
i have very good bass with my 1.7i at the point that i had to sell my REL T9 as it was almost useless except if i wanted a very bassy sound like in some jerk cars lol (but the curve wasvnot flat anymore as i am sure it was a big pick below 80hz with high volume setting). So i don’t understand how you miss bass with the 20.7.... what are the amps ?
jaytor's avatar
jaytor
745 posts
 
+1 for GR Research OB subs. 

Dipoles generally like diffusion on front wall. Too much absorption will ruin the beautiful imaging and makes them sound lifeless. I made that mistake with Tympani IVs in the past. 
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