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SOUND SYSTEM FROM HEAVEN - one problem though
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Clinically Insane
Join Date: Apr 2000
Status:
Offline
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Ok check this.
I got a set of Boston Acoustics BA635's for Christmas...
Now, these babies rock.
But just the day before yesterday, I got access to a second pair...
So now I have two sets of BA635's hooked up to the one G4 through a stereo splitter.
Each set has two awesome satellites and a friggin' awesome subwoofer.
Now combine that and I have 1 satellite directly left of me a meter away, one directly right of me a meter away, and one either side of the monitor on a slight angle towards me, about 75 CM's away form me, and about 10 CM's or a little more from the monitor
The two subwoofers are under the desk, about 25 CM's apart, facing me. The monitor is an Apple Studio Display 17" Graphite, the older one.
It is about a meter and a bit from the subs, vertically.
Now heres the deal.
This set up at 1/4 volume is ******* incredible.
The subs can be felt in the next room.
Now heres the problem...
When playing songs, every now and then my monitor gets shimmery waves in the middle of it, a little to the left.
These must be cause by the speakers.
Magnetic field?
Sound waves, lol?
Bass vibrations?
Hehe 
Well, whatever it is, I wanna fix it, cause it gets annoying.
So... whats the deal?
Is it infact the speakers?
I think it must be.
Solution?
Apart from move them further away.
They're meant to be shielded.
Interference from the subs of the satellites?
I'll turn off the subs and see if it makes a diff, but not now... I can't stand really trebly music.
So whaddya think?
I'm bored so I'll draw a schematic of my setup, hehe
I'll post it back when its done 
Cipher13
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Clinically Insane
Join Date: Apr 2000
Status:
Offline
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Dangit how do I used friggin' iDisk and link to images?
Ah I'll work it out later.
Cipher13
[This message has been edited by Cipher13 (edited 01-02-2001).]
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Professional Poster
Join Date: Oct 1999
Status:
Offline
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It's the satellites causing the waves, the subs cause "shimmers". The only solution is to move them further away from your monitor. I have this same problem too with my set up, so I just hooked my Mac up to my Bose system instead.
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Grizzled Veteran
Join Date: Mar 2000
Status:
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Bose... what a waste of money (unless they were free)... oh well...
I read somewhere that it is possible to put some type of material on your speakers to make them magnetic proof, not sure what kind of material it is though, would reflect/absorb the magnetic interference...
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Mac Enthusiast
Join Date: Oct 1999
Location: San Diego, CA, USA
Status:
Offline
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exa,
He has Boston Acoustics, not Bose...
drewman
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Clinically Insane
Join Date: Apr 2000
Status:
Offline
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Cool, thanks
Exa means Misha...
They're meant to be already magnetically shielded, but a little more can't hurt.
I'll try and mount them on spyres a little further away (oh MAN that would look cool!), but not likely...
I'll just keep 'em on the edge of the desk for the moment.
This won't cause any damage to the monitor will it?
Cipher13
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Professional Poster
Join Date: Oct 1999
Status:
Offline
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It shouldn't cause any permanent damage, no, once you move them away it should be fine.
And yes, I did get my Bose for free... I'd never spend $3000 for a Lifestyle 30. And I agree that it's a rip off... you pay a huge premium for the tiny size of the system. The sound is amazing, mind you, but I could get the same quality out of a system for half the price (ten times the physical size, mind you).
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Grizzled Veteran
Join Date: Sep 2000
Location: East Africa
Status:
Offline
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Another possible, if unlikely, contributor is your own eyes. Okay, this usually only happens when I'm eating something crunching or humming low notes. But it can cause the monitor image to seem to vibrate. It's only vibrating my head, really, but difference in refresh rates between my eyes and the screen lets me see the vibration which my brain usually filters out, I guess.
So the answer to your question is *definitely* this: At certain frequencies the subwoofer finds a resonation pitch in your sinus and causes the screen to appear to joogle. Just move the subwoofer further away from your -head- and you'll be fine. 
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Help find a cure for Malaria: crunch D2OL for Team Macnn.
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Professional Poster
Join Date: Dec 2000
Location: boulder, co
Status:
Offline
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Well, I think this is pretty much covered, but, have you degaused your monitor in a while? It wouldn't hurt...
------------------
Albert Wu <- No life.
http://web.harker.org/
24/7 Cell phone use can not kill you. I am half-consious proof. (It's not because of the cell phone.)
Caffine is not a mind-altering drug.
It is a life-altering drug! 
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Ad Astra Per Aspera - Semper Exploro
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