I feel like I'm fishing in a swimming pool.....
10-29-2004, 09:55 AM
#1
1000 Watt CAFz'r
Thread Starter
Join Date: Oct 2003
Posts: 1,783
But I'm going to ask the question anyway.
Does anyone here have a link to anything online, or even a book that would give good insight into the following:
Concentric Cone Modes
I would like to understand it better, as there is a theory that I'm formulating that's really opening my eyes.
NO, it has nothing to do with subwoofers!
Adam
Does anyone here have a link to anything online, or even a book that would give good insight into the following:
Concentric Cone Modes
I would like to understand it better, as there is a theory that I'm formulating that's really opening my eyes.
NO, it has nothing to do with subwoofers!
Adam
10-29-2004, 01:09 PM
#3
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Posts: n/a
Topic: I feel like I'm fishing in a swimming pool.....
[img]graemlins/freak.gif[/img]
[ October 29, 2004, 02:10 PM: Message edited by: Dukk ]
10-29-2004, 01:18 PM
#4
50 Watt CAFz'r
Join Date: Oct 2003
Posts: 146
Should be able to find it in any general vibrations theory text... I'll take a look at what I have and see what I can find.
Actually I think they're usually limited to talking about circular discs, rectangular plates, vibrations in pipes, and other similar structural vibration concerns... I'm not sure about conics though - and I haven't thought about it enough to know if it's easy or not to extrapolate from circular disc theory to conics. I'll look again though.
Why don't you send an email off to Dan from Adire... seems like stuff he'd know something about.
edit: Found a little bit about it in the Beranek book... how technical did you want to get about it? There's a reference here to M.S. Corrington, "Amplitude and phase measurements on loudspeaker cones" Proc. IRE, 39:1021-1026 (1951)... kinda old but may be useful if you can find it. Most of the stuff i've found in the acoustics texts I have are mostly concerned with the directivity of the output from conical sources.
[ October 29, 2004, 02:28 PM: Message edited by: hobbes26 ]
Actually I think they're usually limited to talking about circular discs, rectangular plates, vibrations in pipes, and other similar structural vibration concerns... I'm not sure about conics though - and I haven't thought about it enough to know if it's easy or not to extrapolate from circular disc theory to conics. I'll look again though.
Why don't you send an email off to Dan from Adire... seems like stuff he'd know something about.
edit: Found a little bit about it in the Beranek book... how technical did you want to get about it? There's a reference here to M.S. Corrington, "Amplitude and phase measurements on loudspeaker cones" Proc. IRE, 39:1021-1026 (1951)... kinda old but may be useful if you can find it. Most of the stuff i've found in the acoustics texts I have are mostly concerned with the directivity of the output from conical sources.
[ October 29, 2004, 02:28 PM: Message edited by: hobbes26 ]
11-01-2004, 09:07 AM
#7
1000 Watt CAFz'r
Thread Starter
Join Date: Oct 2003
Posts: 1,783
Dukk,
The topic was to grab peoples attention.
I'm sorry it grabbed yours in the wrong way. I'm not trying to exclude people, otherwise I wouldn't have posted my question here.
Recently, I started really getting into driver fabrication techniques. There are so many approaches to make a speaker cone, it just boggles my mind. Anyway, I'm trying to find a way of comparing properties of a driver beyond T/S parameters. This is something I've never explored before, so I'm asking for any and all help I can get.
Adam
The topic was to grab peoples attention.
I'm sorry it grabbed yours in the wrong way. I'm not trying to exclude people, otherwise I wouldn't have posted my question here.
Recently, I started really getting into driver fabrication techniques. There are so many approaches to make a speaker cone, it just boggles my mind. Anyway, I'm trying to find a way of comparing properties of a driver beyond T/S parameters. This is something I've never explored before, so I'm asking for any and all help I can get.
Adam
11-01-2004, 09:19 AM
#8
50 Watt CAFz'r
Join Date: Jan 2004
Posts: 206
Anyway, I'm trying to find a way of comparing properties of a driver beyond T/S parameters. This is something I've never explored before, so I'm asking for any and all help I can get.
Adam [/QB][/QUOTE]
Try your ears, it works for me
Adam [/QB][/QUOTE]
Try your ears, it works for me
11-01-2004, 02:07 PM
#9
Guest
Posts: n/a
^ That's what I thought as I read it too..
I had an interesting experience this weekend. I had the opportunity to listen to a really nice driver. It was very smooth, had excellent range, and just really impressed the hell out of me. It reproduced sound without me thinking it had to work to do it. From the T/S specs though it would appear pretty average and the materials of construction weren't exotic or anything either.
I'm something of a tech junkie so I "have" to read the T/S specs and if there are waterfall plots or phase plots then all the better but in the end you just have to listen to a speaker to see if it's crap, average, or spectacular.
I have found some real gems out there and it seems cost has very little to do with it.
I had an interesting experience this weekend. I had the opportunity to listen to a really nice driver. It was very smooth, had excellent range, and just really impressed the hell out of me. It reproduced sound without me thinking it had to work to do it. From the T/S specs though it would appear pretty average and the materials of construction weren't exotic or anything either.
I'm something of a tech junkie so I "have" to read the T/S specs and if there are waterfall plots or phase plots then all the better but in the end you just have to listen to a speaker to see if it's crap, average, or spectacular.
I have found some real gems out there and it seems cost has very little to do with it.
11-01-2004, 02:30 PM
#10
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Posts: n/a
I have to go with Impala Builder on this one as well - listen to the darn things in a controlled situation. You'll be surprised at what you like the sound of, and what you don't.
IF you need something to read, then look for Klippel analysis of a driver, this can tell you a lot about large signal performance, linearity and distortion.
IF you need something to read, then look for Klippel analysis of a driver, this can tell you a lot about large signal performance, linearity and distortion.
