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Multi-Way Conventional loudspeakers with crossovers

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Old 22nd September 2012, 12:43 PM   #201
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To be perfectly honest I don't know if I would use any of my current ideas. They are just half baked ramblings with very little thought given to them. However if I was looking for a minimalist approach that has a chance of working I would probably work off post 166.

Do yourself a favour a do a separate thread highlighting the design idea and you should be able to get some sound advice with some basis, I'm currently flying by the seat of my pants and trying to learn on the fly.

Edit:
check this out http://www.linkwitzlab.com/woofer.htm
very similar to my butt crack (lol just chuckling to myself) seriously though it runs along similar lines and the driver arrangement makes better sense.

Last edited by Silent Screamer; 22nd September 2012 at 01:08 PM.
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Old 22nd September 2012, 12:51 PM   #202
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I just reread all of the posts again... Thanks everyone for the varied input, there has been a lot of pearls of wisdom.

I feel I am getting close...
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Old 22nd September 2012, 01:26 PM   #203
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On second thoughts I don't really like the driver arrangement, but it does seem to make sense from a build stand point. You need to be able to get both driver in and out after the cabinet is built.
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Old 22nd September 2012, 07:34 PM   #204
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Quote:
Originally Posted by Silent Screamer View Post
On second thoughts I don't really like the driver arrangement, but it does seem to make sense from a build stand point. You need to be able to get both driver in and out after the cabinet is built.
By angeling them, as i said, it would be possible to get it out, just ensure that the inner screw-holes are reachable.
...and always have the option to screw of the front baffle to get to the elements.
When i started on the fulltone-baffle i was using the existing front as a reference, where i could adjust the sidewalls just by replacing. I see the biggest issue on the baffle would be the slot, and the size of it, so i guess i start with the back and try out different sizes to see what is the best.
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Old 23rd September 2012, 01:17 AM   #205
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There are several way to get around the issue of accessing the screws.

1. Build a v with a -- top. Something like this -\_/- mount the two drivers to the v-baffle. Slide the whole assembly inside a [] box and put screws in from the side [] <-

2. Build the same box as 1 but glue it up and make it rigid. Have circular holes in both sides to allow fitment of drivers. Once drivers fitted screw on square or round side covers. What I like better about this idea is if you have really long drivers like the ones I just bought TC Sounds Pro 5100 18" Neo Subwoofer Driver 293-674 you could cut a smaller hole in the cover plate and let some of the driver (magnet) hang outside the box. Keeping internal volumes down.

3. Another idea I had was do the same thing with just one driver, use a H box, mount the driver from the back, and taper the front four faces in so the out volume is smaller than the back. Same effect higher out speed than rear.

A simpler way would be to make a regular square box and just make four tapered inserts for the front.

Anyone with fibreglass skills could probably make it as a removable insert allowing fitment of the driver from the front.

Maybe even add some kind of extended baffle plate to the insert?

Last edited by Silent Screamer; 23rd September 2012 at 01:38 AM.
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Old 23rd September 2012, 01:29 AM   #206
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Any suggestions on the mid-woofer?
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Old 23rd September 2012, 02:17 AM   #207
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Originally Posted by Silent Screamer View Post
Any suggestions on the mid-woofer?
I've got nothing specific, but a nice pro 10" seems like it would fit the bill.

How bout the baby version of my woofer?

http://www.parts-express.com/pe/show...number=294-679

Last edited by studiotech; 23rd September 2012 at 02:24 AM.
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Old 23rd September 2012, 04:46 AM   #208
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Put together some Sketch Up pics of the single driver version.
Attached Images
File Type: jpg Top-Front.jpg (94.7 KB, 192 views)
File Type: jpg Rear-Bottom.jpg (134.3 KB, 191 views)
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Old 23rd September 2012, 04:57 AM   #209
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Quote:
Originally Posted by studiotech View Post
I've got nothing specific, but a nice pro 10" seems like it would fit the bill.

How bout the baby version of my woofer?

B&C 10NW64 10" Neodymium Woofer 294-679
I looked at those and then talked myself out of them. I was looking for something with a little bit more finesse, but I probably shouldn't be put off by the "Pro" designation.

Cant seem to find a frequency response for them... 4 buy price brings them down to 183 each.
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Old 23rd September 2012, 05:34 AM   #210
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Thinking 2 x 96dB 10's is probably overkill, so mocked up a 10" and 18" cabinets.

Used this way each baffle plate would extend the other.

Green legs support tweeter - mids
Blue legs support mid woofer
Floor supports woofer
Attached Images
File Type: jpg 10-18.jpg (38.1 KB, 180 views)

Last edited by Silent Screamer; 23rd September 2012 at 05:47 AM.
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