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Old 27th July 2003, 08:51 PM   #11
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BAHH!! 6X9's ditch them and get a pair of nice 6.5inch woofers and some tweeters... build some ported boxes and enjoy the cabin gain.. hehe (much easier to design boxes when you know the drivers specs) 6X9s have tweeters inbuilt.... and most often the speaker cone is used as a funel to direct dust down into the voice coil... hehe its too early...
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Old 27th July 2003, 09:34 PM   #12
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Quote:
Originally posted by SkinnyBoy
BAHH!! 6X9's ditch them
Don't write them all off skinny boy... i'm no big fan of the co-ax or tri-ax, but some of the whizzer cone ones are VERY good... there is a particular delco 6x9...

dave
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Old 27th July 2003, 10:07 PM   #13
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Default Re: Re: Re: Duh

Quote:
Originally posted by planet10


Bill... you have to take the question a little less literally... what he is really asking is "how do i figure the ideal box volume for a specific speaker"

dave
Yea, well I can't do my mind reading routine over the net.
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Old 27th July 2003, 10:14 PM   #14
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Default Re: Re: Re: Re: Duh

Quote:
Originally posted by Bill Fitzpatrick


Yea, well I can't do my mind reading routine over the net.

Hey.. I woulda given the same answer as you..
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Old 27th July 2003, 10:57 PM   #15
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Well, gee then, maybe I can.

Hey, another post for me. When one hits 1K is there a prize?
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Old 28th July 2003, 03:48 AM   #16
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Quote:
Originally posted by Bill Fitzpatrick
Well, gee then, maybe I can.

Hey, another post for me. When one hits 1K is there a prize?

nope... lol no prize...
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Old 30th July 2003, 08:20 PM   #17
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I did some 6"x9" box, large one...
I did them baout 1 cubic feet each...
Even scealed i have a lot of bass...

The reality is that the volume won't change a lot of thing... It's doesn't need to be very very specific...
Larger box = more bass
smaller box = less bass!!!

You can allway try to port
Seriously it would be possible and you should go 1 cubic feet per speaker to 1 1/2 feet
and port about 5hz more that the lower the speaker goes...

The best you can do...

my 2 cents
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Old 31st July 2003, 12:03 AM   #18
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6x9s are just made to use the whole trunk (or 'boot' for us aussies ) in most cases, as stated. and really it's probably gonna be best like that.

are you exceptionally concerned with sound from the rear, or is mainly just gonna be on quiet to keep the rear passengers happy when you rarely have them etc?

to me the idea of throwing 6x9s in the rear shelf was an easy way of getting a bit of bass for the time being (until i could afford a sub), and to get some sound in the rear. i'd be more concerned with fronts, and fade the sound to the front.
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Old 31st July 2003, 03:22 AM   #19
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Default porting?

I have the same problem with a pair of 6.5" speakers in the front of my car. It's a 1971 Mini and my only option was to make a couple of boxes that screwed to the underside of the dash. You're VERY limited with room in the car so the boxes only ended up being 0.15 cu ft. I know it's tiny tiny tiny but they sound okay (for now) but want some more bass and I think porting is the only answer.

Planet10 - You mentioned that to lower the Q response you can drill a series of holes in the box, but I didn't understand how many holes (what is a "area of a third of the Sd of a speaker"??) you should drill and cover/dampen to test the speaker response.

-MearCat
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Old 31st July 2003, 07:53 AM   #20
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Sd is the cone area.

I guess it's effectively using lots of tiny ports, but leaving them open as such, but using a soft material to dampen. the dampening will get rid of air flow noise (port noise) through these holes, and also not let the ports flow as much. that's how i understand it, but i may be wrong.
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