Home |
Search |
Today's Posts |
#1
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
Is it advisible to use star-quad as a run for two xlr connectors
on each end for two microphones? (Ignoring that the termination will be aukward) I want to minimise my run to do an M-S recording. |
#2
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
Star-Quad Group: rec.audio.pro Date: Wed, May 17, 2006, 5:00pm (EDT+4) From: (P.*Mustard) Is it advisible to use star-quad as a run for two xlr connectors on each end for two microphones? (Ignoring that the termination will be awkward) I want to minimise my run to do an M-S recording., No. Use two seperate cables. You'll eliminate any potential hum, buzz, noise,etc, problems, it will also be a more durable connection. Eric |
#3
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
|
#4
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
I'm cheap and I want to do it anyway.
Star-quad is two twisted pairs. Will it work? I may get flamed, but I've done it for a very long run (over 300') and it worked just fine. Use heat shrink to extend the two connectors at either end so you have enough length. We also ran a copper braid around the two pairs and the shield, plus soldered it all together. I'm pretty sure it's still there, doing its job, years after we did the install. Corey |
#6
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
P. Mustard wrote:
OK, let me rephrase, I'm cheap and I want to do it anyway. Star-quad is two twisted pairs. Will it work? The cable is there, and I want to resolder the connectors. Yes, actually it should work quite well It's not two twisted pairs side by side, but four cores in a square. Even so, if you connect one mic to a diagonally opposite pair of wires and the other mic to the other diagonal pair, it should work as well as two separate screened-pair mic cables. (1+) (2+) (2-) (1-) My first thought was that there would be crosstalk, but actually it will be mimimal if you wire it that way and the lines are both balanced, because the crosstalk will consist of equal and opposite components that cancel each other out. -- Anahata -+- http://www.treewind.co.uk Home: 01638 720444 Mob: 07976 263827 |
#7
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
Eric Toline wrote: Star-Quad Group: rec.audio.pro Date: Wed, May 17, 2006, 5:00pm (EDT+4) From: (P. Mustard) Is it advisible to use star-quad as a run for two xlr connectors on each end for two microphones? (Ignoring that the termination will be awkward) I want to minimise my run to do an M-S recording., No. Use two seperate cables. You'll eliminate any potential hum, buzz, noise,etc, problems, it will also be a more durable connection. Hum, buzz , noise ? You're having me on. I'd have though the only problem might be a tiny bit of crosstalk. Graham |
#8
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
"P. Mustard" wrote in
0: (Eric Toline) wrote in news:21360-446B5A51-953 @storefull-3257.bay.webtv.net: OK, let me rephrase, I'm cheap and I want to do it anyway. Star-quad is two twisted pairs. Will it work? The cable is there, and I want to resolder the connectors. Yes, it will work. I got a little extra crosstalk. The bare twin cables are very flimsy. Use shrinkwrap or other support. |
#9
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
Star-Quad Group: rec.audio.pro Date: Wed, May 17, 2006, 7:14pm (EDT+4) From: (P.*Mustard) OK, let me rephrase, I'm cheap and I want to do it anyway. who can argue with such logic? Star-quad is two twisted pairs. Will it work? The cable is there, and I want to resolder the connectors. If it's not for continual field use why not, though I'd prefer multi pair. Eric |
#10
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
P. Mustard wrote:
Is it advisible to use star-quad as a run for two xlr connectors on each end for two microphones? (Ignoring that the termination will be aukward) I want to minimise my run to do an M-S recording. You can do it, and there will be some leakage between them, but not so much that it'll be a problem for an M-S pair. More appropriate would be to buy a cable with individually shielded pairs. Personally I like the Gotham "siamese" style with two star-quads stuck together, but the Belden stuff with two quads in an elliptical outer jacket is fine too. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#11
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
P. Mustard wrote: Is it advisible to use star-quad as a run for two xlr connectors on each end for two microphones? (Ignoring that the termination will be aukward) I want to minimise my run to do an M-S recording. Absolutly no problem. Both AKG Stereo and Sound Field mics use mulitipair cables with a common shield. As long as your mics have a low impedance output and most do, 50 ohms or lower is ideal but 200 would be OK, 100 meters should present no significant response loss or noticable crosstalk. Steve Lane |
#12
Posted to rec.audio.pro
|
|||
|
|||
Star-Quad
Pooh Bear wrote:
Eric Toline wrote: (P. Mustard) Is it advisible to use star-quad as a run for two xlr connectors on each end for two microphones? (Ignoring that the termination will be awkward) I want to minimise my run to do an M-S recording., No. Use two seperate cables. You'll eliminate any potential hum, buzz, noise,etc, problems, it will also be a more durable connection. Hum, buzz , noise ? You're having me on. I'd have though the only problem might be a tiny bit of crosstalk. You are right, assuming that the setup is always used as intended, i.e. for a stereo pair of mics. But, just use your imagination about what will happen when somebody sees two jacks and decides to use one for a phantom powered mic and the other for intercom. Or midi. Or a lighting controller. Or whatever else comes with an XLR jack or can be converted to one. If the OP can be certain that only "knowldgable users" will ever use the setup, fine. Otherwise, better to stick with standard wiring practices. At least then if somebody does something stupid they can't blame you for weird non-standard wiring. //Walt |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Quad erat demonsrandum | General | |||
Quad erat demonsrandum | Marketplace | |||
An ever-fascinating subject: Quad II | Vacuum Tubes | |||
FS: QUAD complete system | Marketplace | |||
Star Trek DVD's on eBay | Marketplace |