Just a heads up DIY guys as Nelson Pass penned a DIY speaker project and i just posted it. Am doing my best to keep the DIY section of the Review Magazine going and am always open to publishing projects (pres, amps, speakers, etc). Nelson's article is at:
The Slot Loaded Open Baffle Project Article By Nelson Pass
The Slot Loaded Open Baffle Project Article By Nelson Pass
What the...
Look at that!
I have 8 Peerless- 12 ohm, 8" drivers...might have to get 4 more!!
Nice find.
Look at that!
I have 8 Peerless- 12 ohm, 8" drivers...might have to get 4 more!!
Nice find.
funny thing is that it seems that I can't be -ever - surprised by Papa's ideas ......
OK - with ideas - yes , but having him around again with new things , is somehow usual .....
OK - with ideas - yes , but having him around again with new things , is somehow usual .....
I have 8 of these already. Just ordered 4 more. $7 each.
parts-express.com
Peerless India W8-12T 12P 8" Paper Cone Woofer 12 Ohm
Part Number: 299-068
parts-express.com
Peerless India W8-12T 12P 8" Paper Cone Woofer 12 Ohm
Part Number: 299-068
Interesting idea. Of course i am wondering if size of slot is optimal and if there are even ways of figuring it out? I also can't help but wonder how two 15" drivers per baffle would sound simply facing forward compared to the slotted system.
I wonder if the speaker can be slimmed down by bending the sides of those wide baffles? May not help the Lowther's response but would it hurt the 'bass system's' response? I can picture 8 or more woofers from floor to ceiling in corners filling a room with incredible bass while maintaining a slim footprint.
Thanks for sharing. It's probably a good idea. Hopefully others will wrap their minds around this and move the idea forward.
I need coffee!
I wonder if the speaker can be slimmed down by bending the sides of those wide baffles? May not help the Lowther's response but would it hurt the 'bass system's' response? I can picture 8 or more woofers from floor to ceiling in corners filling a room with incredible bass while maintaining a slim footprint.
Thanks for sharing. It's probably a good idea. Hopefully others will wrap their minds around this and move the idea forward.
I need coffee!
It has already been done:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
The Visaton Grand Orgue is simply a stack of Ripoles with a short line array of FR speakers in front of it.
Rudolf
Is this why Nelson bought all those cheap 8" woofers at P.E.?
http://www.diyaudio.com/forums/full-range/192269-5-woofers-pe-might-work-ob.html
http://www.diyaudio.com/forums/full-range/192269-5-woofers-pe-might-work-ob.html
hi,
I looked at the amt-3 from Nelsons build,got a question? A picture from the front of a built speaker would tell me ,but is there one slot for each 2 facing drivers ? like 2 drivers in one slot,so you have 3 slots?or is there just one big slot 2.25"X30, I don't know if it would matter too much,the pressure comes out of the slot when they push and back in when it pulls,Thanks!!!!!
I looked at the amt-3 from Nelsons build,got a question? A picture from the front of a built speaker would tell me ,but is there one slot for each 2 facing drivers ? like 2 drivers in one slot,so you have 3 slots?or is there just one big slot 2.25"X30, I don't know if it would matter too much,the pressure comes out of the slot when they push and back in when it pulls,Thanks!!!!!
Each driver set have their own slot, the exit of the slots should be rounded to reduce turbulence.
If you think about it, it matters, because the driver need to built pressure to force out the sound wave. The high pressure in the front and low pressure out the back reduce cancellation.
BTW-
Is noSmoking from a Dean Koonz noval?
If you think about it, it matters, because the driver need to built pressure to force out the sound wave. The high pressure in the front and low pressure out the back reduce cancellation.
BTW-
Is noSmoking from a Dean Koonz noval?
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Hi,
Thanks for the info ,I have 12 speakers and some dayton foil caps on the way they are all on sale,speakers were $7 and the caps about $2 each,PE,,,,I will layout some plans to build them,,,,The NoSmoking thing is a joke,I used to taunt the new tek's about letting out the blue smoke so they nicked named me NoSmoking,lol.
I want to run 4 mids per cabinet and 4 or more ribbion tweeters with maybe a couple of soft domes to smooth out the top end,I have a decware home wrecker with 2 peavey 18" in them,lol.
So a little at a time,
Cheers!
Thanks for the info ,I have 12 speakers and some dayton foil caps on the way they are all on sale,speakers were $7 and the caps about $2 each,PE,,,,I will layout some plans to build them,,,,The NoSmoking thing is a joke,I used to taunt the new tek's about letting out the blue smoke so they nicked named me NoSmoking,lol.
I want to run 4 mids per cabinet and 4 or more ribbion tweeters with maybe a couple of soft domes to smooth out the top end,I have a decware home wrecker with 2 peavey 18" in them,lol.
So a little at a time,
Cheers!
I suggest to have a look at this website; unfortunatly not all sides are written in English....
DIY Audio Projects
DIY Audio Projects
Not really. These polar diagram simulations show (from left to right) a closed box, an open baffle and a Ripole.
Rudolf
I have seen this in Visaton page, and I like the design very much ! Especially the placement of the midrange line array idea.
- Elias
- Elias
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