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Multi-Way Conventional loudspeakers with crossovers

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Old 6th June 2003, 06:05 PM   #1
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Default Full-Range bipolar centre channel

First pics of the prototype RS 40-1197 bipolar centre channel. These are an ML-TL. Since it is doing CC duty we needed to mount the drivers magnet-to-magnet (which works well -- i can get the speakers a couple inches closer to the TV than in the bottom frame without any rainbows on the TV monitor). Chris did such a good job that i could only get a piece of paper between the magnets, to ensure tight mechanical coupling. The drivers were mounted from behind the baffle to maximize the depth of the cabinet (length & cross-section are fixed by the ML-TL parameters). These are destined to accompany a set of 4 RS40-1197 BD-Pipes in a friends HT system (the Red ones at the bottom of the page are the fronts). They are also accompanied by a Red push-push sub using 1 pr of Foster extended range 12". In the next iterations we will squeeze the FR closer to the edge of the pipe so as to be able to add the super-tweeter vertically (it comes in at 10k).

dave
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Old 6th June 2003, 06:14 PM   #2
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Default Plans

We subbed in a single port, and the drawing doesn't show the tweeter.

dave
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Old 6th June 2003, 06:49 PM   #3
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Nice work!!!...I`m in the middle designing a centre channel speaker myself driven by the LM 3886`s I came across (posted in another thread)...what frequency are they crossed at>??? and I have never heard a dipole are they as good as what I have read?.....oh and nice job on the bevelled openings...great dispersaion I bet!!!


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Old 6th June 2003, 07:16 PM   #4
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Originally posted by JOE DIRT®
Nice work!!!...I`m in the middle designing a centre channel speaker myself driven by the LM 3886`s I came across (posted in another thread)...what frequency are they crossed at>??? and I have never heard a dipole are they as good as what I have read?.....oh and nice job on the bevelled openings...great dispersaion I bet!!!
ChrisB's work. I just assemble them. XO is at 10k and they are bipoles not dipoles. The distinction is important.

dave
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Old 6th June 2003, 08:09 PM   #5
jleaman is offline jleaman  Belgium
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how do they sound dave. i wish i got to hear them and put them together when i was there..
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Old 6th June 2003, 08:11 PM   #6
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DOPE!!typo
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Old 6th June 2003, 08:25 PM   #7
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Originally posted by JasonL
how do they sound dave. i wish i got to hear them and put them together when i was there..
I won't get a chance to give them a real listen since they are off to Shuya's today. They do have the characteristic sound of previous 1197 kit we've built so i am comfortable they are going to sound real fine...

i guess 2 weeks wasn't enuff... there is a whole bunch of stuff we didn't get at while you were here.

dave
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Old 6th June 2003, 08:28 PM   #8
jleaman is offline jleaman  Belgium
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ill come back soon and maybe bring the GF with me this time maybe. When i get some money here soon ill send you some for my scanner and my cd player's.. if you want to toss some thing in the same box that needs fixin you can do that ill then ship it back to you..

J'
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Old 6th June 2003, 08:33 PM   #9
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ill come back soon and maybe bring the GF with me this time maybe.
look forward to meeting Katie... Good thing the guest bed doesn't squeak

dave
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Old 6th June 2003, 08:35 PM   #10
jleaman is offline jleaman  Belgium
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LMAO nice.!!! hahaha yeah that is the best part.
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