You are not logged in. [Log In]


Forums » General Discussion » Home Theater » How from wall for M80s ?

Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#276540 - 10/28/09 05:54 PM How from wall for M80s ?
Riker Offline
devotee

Registered: 10/16/06
Posts: 375
Loc: Ottawa, Ontario
For the obsessed tweakers out there.. after you spent countless hours moving your speakers by increments of 1/8 of an inch in every direction listening to your reference material until you found nirvana, what is the optimal space from the back wall and side wall for the M80 speakers ?
_________________________
Acoustic Zen Adagio, Veritas center, Axiom EP500, QS8s, Anthem AVM20, MC20,Adcom GFA7400

Top
#276545 - 10/28/09 06:38 PM Re: How from wall for M80s ? [Re: Riker]
Adrian Offline
axiomite

Registered: 12/27/08
Posts: 6865
Loc: It's all about the location.
Everyone's room is different, shape, size, flooring, furniture, curtains ect. My left M80 is sitting in front of an opening to the breakfast area, and the right is halfway in front of a walkout to the hallway, so I guess technically they are sitting between 5 and 10 ft in front of the walls behind them, lol!
_________________________
Half of communication is listening. You can't listen with your mouth.

Top
#276546 - 10/28/09 06:42 PM Re: How from wall for M80s ? [Re: Adrian]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 18044
Loc: NoVA
About as far out as I left it after my son pushed it around.

Oh wait, this thread isn't for me, is it...
_________________________
I am the Doctor, and THIS... is my SPOON!

Top
#276550 - 10/28/09 06:55 PM Re: How from wall for M80s ? [Re: Ken.C]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13565
Loc: Iowa
There is no one hard fast rule, every room is different. You want the drivers at different distances from the side and front wall. Also, you need to have the speakers out enough to allow the bass ports to filter into the room.

I think I have about 8" of room behind my 80's.
_________________________
M80s-VP180-4xM22ow-4xM3ic-EP600-2xEP350
Anthem AVM60 Outlaw 7700 Emotiva A500 Epson 5040UB



Top
#276555 - 10/28/09 07:10 PM Re: How from wall for M80s ? [Re: SirQuack]
merchman Offline
aficionado

Registered: 02/01/08
Posts: 854
Loc: WI
As has been said, no room is the same. Mine are currently 14 inches from the back of the cabinet to the wall.

Distance from the side walls can also come into play for best performance. One of mine is 22 inches from wall and the other is 30 inches.

I put little carpet sliders under each rubber foot to move them around easier. Seems to be a never ending quest to find that perfect position.


Edited by merchman (10/28/09 07:17 PM)
_________________________
M80's(2), VP150, QS8's(2), M3's(4)

Top
#276557 - 10/28/09 07:23 PM Re: How from wall for M80s ? [Re: merchman]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6789
Loc: The Peoples Republic of Il.

I have mine 48" from the back wall (measured to the front baffle)
_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


Top
#276562 - 10/28/09 08:12 PM Re: How from wall for M80s ? [Re: Wid]
Micah Offline
connoisseur

Registered: 11/16/08
Posts: 1789
Loc: Indiana you hoser!!!!
 Originally Posted By: wid

I have mine 48" from the back wall (measured to the front baffle)



That's interesting, I measure mine from the rear of the speaker.

Mine are 19 inches from the rear wall, 68 inches from the outer wall, and 30 inches from the closet wall.

As others have said, every room is different, but my measurements are correct! ;\)
_________________________
My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD

Top
#276563 - 10/28/09 08:26 PM Re: How from wall for M80s ? [Re: Micah]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6789
Loc: The Peoples Republic of Il.
When measuring distances of the speaker to the back wall it should be measured from the wall to the front of the speaker (baffle)

JohnK brought this to my attention a while back.
_________________________
Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


Top
#276566 - 10/28/09 09:17 PM Re: How from wall for M80s [Re: Micah]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10621
Yes, Micah; as Rick commented, it's the distance from the center of the mid-woofer cones to the nearest room surfaces that determines the extent of boundary effects on frequency response. The distance to the back of the speaker enclosure isn't of any particular significance(except that at least a few inches of "breathing room" should be given to a rear port).

As has also been mentioned, the distances from the cone centers to the floor and two walls should be kept unequal so that the boundary effects don't pile up at one frequency.
_________________________
-----------------------------------

Enjoy the music, not the equipment.



Top
#276572 - 10/28/09 10:16 PM Re: How from wall for M80s [Re: JohnK]
Micah Offline
connoisseur

Registered: 11/16/08
Posts: 1789
Loc: Indiana you hoser!!!!
Ok, so when you guys posted that you set your speakers 24 inches out from the wall, you were measuring from the front of the speaker? That makes a bit more sense to me now. Wow so your only out 7 1/2 inches from the rear of the speaker then? That is a big difference indeed, as mine are out 19 inches from the rear and 36 inches from the front!
_________________________
My Stuff :

M80's
QS8's
VP150
EP800
Denon 4802
Emotiva XPA-3
Samsung BD-P3600
Sharp 65 Inch Aquos LCD

Top
Page 1 of 2 1 2 >

Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 
Forum Stats

15,206 Registered Members
15 Forums
23,962 Topics
423,591 Posts

Most users ever online:
883 @ 03/04/17 05:06 PM

Top Posters
Ken.C 18044
pmbuko 16437
SirQuack 13565
CV 11675
MarkSJohnson 11437
1 registered (CV)
251 Guests and
5 Spiders online.
Key: Admin, Global Mod, Mod
Newsletter Signup