NEED HELP FROM YOU BRAINIACS?

banginon · 4th January 2011, 09:40 PM

Fifteen or so years ago, I read an article in hi-fi world on positioning speakers. It gave yo an equation depending on room dimensions. I still have that mag somewhere, but can't find it.The article gave you the means by measuring the room L-W. were to place your speakers what it did'nt say was the distance from back wall to the front or back of the speaker.Do any of you brainiacs know this equation and can anyone explain this for me, preferably in the old feet and inches, Being an old dunce never did the metric thing when i was at school, I would be very grateful if you would give me this knowledge kind regards and a happy new year to all banginon

Cal Weldon · 4th January 2011, 09:58 PM

Hi,

I wouldn't think there is a single equation, I liken it to trial and error. This includes distance from the wall, spacing between them and amount of toe in or out. It all depends on your environment.

tomchr · 4th January 2011, 10:00 PM

Also depends on how the speakers interact with the room. How live the room is, etc.

~Tom

mp9 · 4th January 2011, 10:01 PM

any formula will be inherently flawed, it will all depend on the type of speaker/room. a starting point would be to form a triangle with you the same distance from the speakers as they are apart from each other. the center of the tweeters or fullrange cones seven feet apart and a foot or two from the rear wall with as much or more from side walls. if too bright aim them straight ahead. if not try toe in towards you. too much bass move further from the rear wall and vice versa. Some speakers require corner loading and others like open baffles need more room behind to the rear wall for the rear wave.

chrisb · 10:05 PM

Quote:

Originally Posted by banginon

Fifteen or so years ago, I read an article in hi-fi world on positioning speakers. It gave yo an equation depending on room dimensions. I still have that mag somewhere, but can't find it.The article gave you the means by measuring the room L-W. were to place your speakers what it did'nt say was the distance from back wall to the front or back of the speaker.Do any of you brainiacs know this equation and can anyone explain this for me, preferably in the old feet and inches, Being an old dunce never did the metric thing when i was at school, I would be very grateful if you would give me this knowledge kind regards and a happy new year to all banginon

there are probably as many expert formulas to solve this issue as there are DIYers with the brains to deconstruct them

but it couldn't hurt to kick back and read the following at Cardas Audio

Cardas Audio

and

Cardas Audio

edit: see what happened in the 3 minutes it took to type this reply and cut/paste the above links ?

the brainiac was definitely a cute opening salvo of foreplay

Cal Weldon · 4th January 2011, 10:40 PM

Quote:

Originally Posted by Cal Weldon

It all depends on your environment.

Quote:

Originally Posted by tomchr

Also depends on how the speakers interact with the room. How live the room is, etc.

Same thing, same pile.

banginon · 6th January 2011, 01:58 AM

Quote:

Originally Posted by chrisb

there are probably as many expert formulas to solve this issue as there are DIYers with the brains to deconstruct them

but it couldn't hurt to kick back and read the following at Cardas Audio

Cardas Audio

and

Cardas Audio

took a glance very nice turns out i pretty much have it ok thanx again

edit: see what happened in the 3 minutes it took to type this reply and cut/paste the above links ?

the brainiac was definitely a cute opening salvo of foreplay

banginon · 6th January 2011, 09:51 PM

I dont build i just listen thats all i have evre done,I guess I am gonna give up now. I built this room 17 years ago I put in it what sounded good at time, its 25ft long 17ft wide back wall 15ft 6inch front. my speakers are tannoyD700 bought at the time I now am runnig a MUSICAL FIDELITY KW 550 AMP FRONT IS MUSICAL FIDELITY NU-VISTA 3D CR PLAYER NO#1 #2 IS TEAC TD CANT REMEMBER TRANSPORT MF X24DAC X-PSU 3#IS ARCAM ALPHA 5 PLUS SOUNDS Good just a big juke box really but i love it the only thing i can say is big big respect to all of you when its right STOP AND ENJOY HAPPY NEW YEAR AND ALL THAT REMEMBER ITS ALL ABOUT LISTENING PEACE OUT

banginon · 6th January 2011, 09:53 PM

i cant remeber i wasreally drunk at the time

6th January 2011, 09:51 PM	#8
banginon diyAudio Member Join Date: Dec 2010 Location: thrybergh rotherham south yorkshire united kingdom	idoit what do i know I dont build i just listen thats all i have evre done,I guess I am gonna give up now. I built this room 17 years ago I put in it what sounded good at time, its 25ft long 17ft wide back wall 15ft 6inch front. my speakers are tannoyD700 bought at the time I now am runnig a MUSICAL FIDELITY KW 550 AMP FRONT IS MUSICAL FIDELITY NU-VISTA 3D CR PLAYER NO#1 #2 IS TEAC TD CANT REMEMBER TRANSPORT MF X24DAC X-PSU 3#IS ARCAM ALPHA 5 PLUS SOUNDS Good just a big juke box really but i love it the only thing i can say is big big respect to all of you when its right STOP AND ENJOY HAPPY NEW YEAR AND ALL THAT REMEMBER ITS ALL ABOUT LISTENING PEACE OUT

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4th January 2011, 09:40 PM	#1
banginon diyAudio Member Join Date: Dec 2010 Location: thrybergh rotherham south yorkshire united kingdom	NEED HELP FROM YOU BRAINIACS? Fifteen or so years ago, I read an article in hi-fi world on positioning speakers. It gave yo an equation depending on room dimensions. I still have that mag somewhere, but can't find it.The article gave you the means by measuring the room L-W. were to place your speakers what it did'nt say was the distance from back wall to the front or back of the speaker.Do any of you brainiacs know this equation and can anyone explain this for me, preferably in the old feet and inches, Being an old dunce never did the metric thing when i was at school, I would be very grateful if you would give me this knowledge kind regards and a happy new year to all banginon

4th January 2011, 09:58 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Hi, I wouldn't think there is a single equation, I liken it to trial and error. This includes distance from the wall, spacing between them and amount of toe in or out. It all depends on your environment. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

4th January 2011, 10:00 PM	#3
tomchr diyAudio Member Join Date: Feb 2009 Location: Greater Seattle Area	Also depends on how the speakers interact with the room. How live the room is, etc. ~Tom

4th January 2011, 10:01 PM	#4
mp9 diyAudio Member Join Date: Jun 2006	any formula will be inherently flawed, it will all depend on the type of speaker/room. a starting point would be to form a triangle with you the same distance from the speakers as they are apart from each other. the center of the tweeters or fullrange cones seven feet apart and a foot or two from the rear wall with as much or more from side walls. if too bright aim them straight ahead. if not try toe in towards you. too much bass move further from the rear wall and vice versa. Some speakers require corner loading and others like open baffles need more room behind to the rear wall for the rear wave.

6th January 2011, 09:53 PM	#9
banginon diyAudio Member Join Date: Dec 2010 Location: thrybergh rotherham south yorkshire united kingdom	i cant remeber i wasreally drunk at the time

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