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In Reply to: RE: Newbie Question, - Partition wall problem with Maggies posted by Davy on July 22, 2010 at 03:56:44
the point of reflection is usually the area on the front wall where you can see the backside of the speaker from the listening position if the front wall were a mirror. people have tried a lot of stuff, but i know 4 inch acoustic foam works. 1 foot away would be pretty tough to get to work as even the best absorbers are still pretty reflective. at that range i'm afraid the reflection would be loud enough to interfere with the response of front wave. i've never had much luck with less than 30" even with good absorption.
Follow Ups:
Thanks a lot Bart. Yes so this is obviousy my main problem. I think I could get the speakers to near 30 inches from the wall. Certainly 2 feet (24 inches) would not be a problem. Its not that convenient, but I could move the speakers there when i want to listen to them. I had them before at 1.5 feet (not 1 feet I miscalculated it)
As for the absoprtion material/foam, - I will try it behind the speakers like you suggest. Auralex foam I know is good, What is the best shape for my purposes do you think?, - the pyramid/uneven shape or flat foam without a pattern?
I know that this Aualex stuff is quite pricey though. Maybe if I could find some second hand material. Are there any cheaper alternatives at all?!
even the best absorbers are pretty reflective. that doesn't mean crappy ones are just as good though. you can definitely tell the difference between 2" and 4" foam. i use the 4" studiofoam wedges on the front wall.
Thanks Bart,
Will look for some foams, - I wish I had the money right now for some decent ones but I don't unforutnately, - in the budget end of the market it seems difficult to find anything greater than 2 inches thick, - I guess you can join two sets together can you?!
Cheers,
Colin
Hi Guys,
Well I tried the Maggies out at 3ft from the wall and yes its a lot better, but still my room is a problem for these planars in my opinion, - its too small (only 16ft long by about 10 feet wide and a bit L-shaped too. I tried my Apogees Stages too and both planars do not sound as good in this room as I know they are capable of, - something just sound wrong and it also pretty inconvenient to have them placed so far out. I have to admit in this room my big Proac 3.5s work a million times better, - they are very insensitive to placement in comparison to these planars, - I can have then nearly right up against the wall (they are front ported). So I might reluctantly sell on the Maggies and Apogees.
I noticed the 2.7QR has a nice integrated sound from the three driver sections but (and I definitely think the room doesn't help) I thought they lacked sparkle to how I remember the highs on my Dads true tweeter ribbon shod MGIIIs (1986 model). I quite like the 2.7s though, I might possibly hang onto them for when I move to a place with a bigger room - and as for their sound quality I guess that upgrading that rubbish stock crossover is a good place to start if I want to tweak it and its quite easy to do. I might sell the Apogees as although they do have some special qualities (and are ahead of the Maggies in several areas) I am not keen on their lack of vertical dispersion, - I like to walk around the room sometimes when listening, - the Maggies are a better for this due to the much larger line source. So I will probably sell the Apogees and I might try to look for a pair of Maggie 2 or 3 series speakers with the true ribbons and compare to the 2.7s and keep the speakers I prefer.
I have a small question about some Maggie 3.3Rs, - will post in a new thread.
Thanks for all your help on this guys. I might buy some sound absorption foams and try the planars to see if the sound is improved before deciding to sell them for sure.
Cheers,
Colin
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