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Speakers with no rear wall, better or worse sound?

I have been in a debate about speaker placement. I was proposing that having speakers in the middle of a long space (~30 foot long room) would be preferred over having speakers about 3 to 4 feet from a wall behind the speakers. I would think that having little to no wall reflections of sound from behind the speaker would be preferable. The wall behind the speakers is currently about 14 feet back. Another opinion suggested that we should build a wall 4 feet behind the speakers to get the best sound. I was thinking that the reflected sound from this new sound would mix with the speakers' direct sound and erode the quality. Other views? We were considering some renovations and I do not want to go through a significant change to our home and erode sound quality.
hickory
Post removed 
buconero117
2,311 posts
 
Time to check out Floyd Toole's 'Sound Reproduction' book. I believe that the one third, one third, one third rule will give you the best sound if using acoustic speakers. Maggies have a whole other set up routine.
needfreestuff's avatar
needfreestuff
572 posts
 
It would help if we knew what type of speakers and amplifier you have.
hickory OP
21 posts
 
My current speakers are Avalon Opus with all Spectral electronics (DMA-250 amp/ 30SS pre). I am currently considering Magico speakers for which I would be willing and eager to optimize the room. I had a reputable dealer indicate that one needs a wall behind the speakers, albeit 4-5 feet back. I felt that having essentially no wall behind the speakers (i.e. no chance for reflected sound mixing with direct) would be preferred; but I am not the expert. I have pretty good imaging and excellent soundstage depth (width is reasonable). I have carefully consider first (side) wall reflections, floor reflection, etc. in the placement of the speakers.
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