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Setting up Magnepans

Posted by ceulrich@fastmail.us (A) on September 27, 2016 at 07:53:34

Hello All,

This is my first post, but I have been trolling through old posts for a number of months looking for information on setting up Magnepan speakers. I did find a lot of useful information, so I thought I would share my experience in the hope that it will be useful to someone else.

I have been a Magnepan owner for many years, starting with the 2.5R model and more recently with the 3.7i model. I have always done the setup by ear, and in my previous house I had a dedicated listening room so I had complete control over speaker placement. However, in my current house I am much more constrained, see the attached scaled drawing (room height is 8 feet). At first I tried the speakers along the 14' wall, and just did not like the sound, not sure why. Next I tried them along the 12' wall, sound was ok but the arrangement disrupted use of the room as a normal living room. Finally I settled on the arrangement shown, with a 5 degree toe-in. Reflections off of the front wall from the out of phase sound from the rear of the speakers is not a problem, because there is not a direct path to the listening position. Reflections off of the right-side wall and from the rear wall might be problems. Reflections off of the ceiling and floor may also present problems. I have found one drawback to this arrangement, the image seems to be pulled back into the corner. This effect is much reduced when listening in the dark or with my eyes closed. I am not sure if this is psychological or a physical acoustic effect.

The sound was pretty good but I always wondered about the reflections and what problems I created with the listening position back in the corner. Some time ago I acquired the REW software and thought I would see what the measurements told me. I have a number of graphs that will be too much for one posting, so I will dribble this out over a week or two.

Cheers,

Chuck

This post is made possible by the generous support of people like you and our sponsors:

Atma-Sphere Music Systems, Inc.

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