Home |
Search |
Today's Posts |
#1
|
|||
|
|||
Ohm's With the Walsh Driver
There's a pair of them at a local garage sale for $25. The externals are beat to **** but the protective cans around the drivers haven't been compromised and they pass the 9V battery test. Would you buy them? No brainer, huh. I just need a prod, I guess, to open my wallet even a little for anything these days. Bob -- "Things should be described as simply as possible, but no simpler." A. Einstein |
#2
|
|||
|
|||
There's a pair of them at a local garage sale for $25. The
externals are beat to **** but the protective cans around the drivers haven't been compromised and they pass the 9V battery test. Would you buy them? Well, why do you want them? For fun, to play with? Then buy then. Unfortuately, the Walsh driver is extremely insensitive. And because the wave that propagates down the side of the driver is not properly terminated, and moves back up driver, they are rather colored. I say, without an sarcasm, they might make good subwoofers. |
#3
|
|||
|
|||
William Sommerwerck wrote: There's a pair of them at a local garage sale for $25. The externals are beat to **** but the protective cans around the drivers haven't been compromised and they pass the 9V battery test. Would you buy them? Well, why do you want them? For fun, to play with? Then buy then. Yea, that's about it. If they are still there tomorrow I'm going to pick them up. I've just got to have them I realize as a perhaps unsuccessful, but nonetheless novel concept in a field that hasn't really seen much novelty. Unfortuately, the Walsh driver is extremely insensitive. Yes, and it did occur to me to wonder what their performance might be if the magnet could be replaced with one of the modern compounds that contain so much more energy. And because the wave that propagates down the side of the driver is not properly terminated, and moves back up driver, they are rather colored. I always did wonder about that. The theory sounded good until you started wondering about what happened at the end. I suppose it's possible to somehow provide a viscous termination with a mechanical resistance equal to the chracteristic impedence of the driver cone but I don't remember them ever claiming that. But you are right, without that they should ring like hell. First thing I'd be doing, of course, is to see what they do to an impulse. I say, without an sarcasm, they might make good subwoofers. :-) Bob -- "Things should be described as simply as possible, but no simpler." A. Einstein |
#4
|
|||
|
|||
"William Sommerwerck" wrote in message
There's a pair of them at a local garage sale for $25. The externals are beat to **** but the protective cans around the drivers haven't been compromised and they pass the 9V battery test. Would you buy them? As a curiosity, given that I had a lot of empy space in my basement or attic to fill. Well, why do you want them? For fun, to play with? Then buy then. Agreed. As serious audio, they are a zero. Unfortuately, the Walsh driver is extremely insensitive. Roger that! And because the wave that propagates down the side of the driver is not properly terminated, and moves back up driver, they are rather colored. Agreed! I say, without an sarcasm, they might make good subwoofers. Not nearly enough Xmax. |
#5
|
|||
|
|||
"Bob Cain" wrote in message
William Sommerwerck wrote: There's a pair of them at a local garage sale for $25. The externals are beat to **** but the protective cans around the drivers haven't been compromised and they pass the 9V battery test. Would you buy them? Well, why do you want them? For fun, to play with? Then buy then. Yea, that's about it. If they are still there tomorrow I'm going to pick them up. I've just got to have them I realize as a perhaps unsuccessful, but nonetheless novel concept in a field that hasn't really seen much novelty. Unfortuately, the Walsh driver is extremely insensitive. Yes, and it did occur to me to wonder what their performance might be if the magnet could be replaced with one of the modern compounds that contain so much more energy. A creul fact of life is that it has long been possible to create just about any kind of magnet that one could want for decades, subject to the fact that you can only pump so much magnetism through a speaker's magnet assembly, and then the polepieces, etc saturate, and won't take any more. And because the wave that propagates down the side of the driver is not properly terminated, and moves back up driver, they are rather colored. I always did wonder about that. The theory sounded good until you started wondering about what happened at the end. It reflects back, slits, suspension, bits of foam, etc notwithstanding. I suppose it's possible to somehow provide a viscous termination with a mechanical resistance equal to the chracteristic impedence of the driver cone but I don't remember them ever claiming that. But you are right, without that they should ring like hell. Which they are kind enough to do, proving again that the natural universe is ruled by the Laws Of Physics, no matter what audio manufactuers and audio pundits, try to claim. First thing I'd be doing, of course, is to see what they do to an impulse. What Walsh drivers do to impulses should not be done to a dog. I say, without an sarcasm, they might make good subwoofers. Still got not nearly enough Xmax. |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
wiring options for 2 subs (2 omhs vs 4 ohms) | Car Audio | |||
rec.audio.car FAQ (Part 3/5) | Car Audio | |||
rec.audio.car FAQ (Part 2/5) | Car Audio | |||
FS: MXR NOISE GATE / LINE DRIVER | Pro Audio |