| View previous topic :: View next topic |
| Author |
Message |
Bob Simpson
audio school
Joined: 24 Mar 2011
Posts: 4
|
 Posted: Thu Mar 24, 2011 2:02 pm Post subject: Mic splitter Y cord |
  |
|
I need to split my drummer's headset mic to a separate channel on the recorder and our FOH board.
Will a XLR Y cord work, or will the impedance get wierd and foobar the track?
I'm short of cash to do an iso splitter.
Any suggestions?
TIA
Bob Simpson |
|
| Back to top |
|
 |
Scodiddly
TOMB Moderator
Joined: 10 Dec 2003
Posts: 3154
Location: Libertyville, IL, USA
|
| Posted: Thu Mar 24, 2011 2:33 pm Post subject: Re: Mic splitter Y cord |
|
|
| A simple XLR Y-cable will work 99.99% of the time. Go for it. |
|
| Back to top |
|
|
IanWalker
alignin' 24-trk
Joined: 05 Dec 2008
Posts: 64
Location: Lansing, MI
|
| Posted: Thu Mar 24, 2011 11:57 pm Post subject: Re: Mic splitter Y cord |
|
|
| Scodiddly wrote: | | A simple XLR Y-cable will work 99.99% of the time. Go for it. |
Yup, unless you need to run phantom from one of the split ends. You can get some crap then, and might get some phantom running back down the other side of the y.
Or at least that's the idea. There's a reason they make splitter boxes with direct and isolated outputs.
But if its a dynamic (or if you're splitting after some kind of preamp)? Go for it.
_________________
--
Ian!
http://michigansoundservices.com/
http://www.attractionrecords.com/
http://www.beerandcomics.com/ |
|
| Back to top |
|
|
Scodiddly
TOMB Moderator
Joined: 10 Dec 2003
Posts: 3154
Location: Libertyville, IL, USA
|
| Posted: Fri Mar 25, 2011 1:59 pm Post subject: Re: Mic splitter Y cord |
|
|
| It will work 91.34% of the time with phantom involved. |
|
| Back to top |
|
|
IanWalker
alignin' 24-trk
Joined: 05 Dec 2008
Posts: 64
Location: Lansing, MI
|
|
| Back to top |
|
|
Bob Simpson
audio school
Joined: 24 Mar 2011
Posts: 4
|
| Posted: Fri Mar 25, 2011 4:13 pm Post subject: Re: Mic splitter Y cord |
|
|
| IanWalker wrote: | | Scodiddly wrote: | | It will work 91.34% of the time with phantom involved. |
Its good to know the exact percentage of the time that it will. Science! |
Thanks, Folks...
Seems like I remember 93.675% of all statistics are made up on the spot... 
Bob Simpson |
|
| Back to top |
|
|
Andy Peters
buyin' gear
Joined: 12 Mar 2007
Posts: 594
Location: Sunny Tucson
|
| Posted: Thu Mar 31, 2011 12:35 am Post subject: Re: Mic splitter Y cord |
|
|
| IanWalker wrote: | | Scodiddly wrote: | | A simple XLR Y-cable will work 99.99% of the time. Go for it. |
Yup, unless you need to run phantom from one of the split ends. You can get some crap then, and might get some phantom running back down the other side of the y. |
Doesn't matter, unless the other input on the split cannot stand off the 48 V phantom (which will actually be lower than 48 V because of the load presented by the mic), in which case the other piece of kit is crap and needs to be replaced.
Certainly the DC bias from the phantom will be seen at the other input, but in a properly-designed system it'll be blocked by either caps or a transformer.
And there's no need to worry about phantom active on both split ends since the 6.81k resistors do a fine job of isolating the voltage sources.
-a
_________________
"On the internet, nobody can hear you mix a band." |
|
| Back to top |
|
|
Bob Simpson
audio school
Joined: 24 Mar 2011
Posts: 4
|
| Posted: Fri Apr 01, 2011 3:30 pm Post subject: Re: Mic splitter Y cord |
|
|
| Andy Peters wrote: | | IanWalker wrote: | | Scodiddly wrote: | | A simple XLR Y-cable will work 99.99% of the time. Go for it. |
Yup, unless you need to run phantom from one of the split ends. You can get some crap then, and might get some phantom running back down the other side of the y. |
Doesn't matter, unless the other input on the split cannot stand off the 48 V phantom (which will actually be lower than 48 V because of the load presented by the mic), in which case the other piece of kit is crap and needs to be replaced.
Certainly the DC bias from the phantom will be seen at the other input, but in a properly-designed system it'll be blocked by either caps or a transformer.
And there's no need to worry about phantom active on both split ends since the 6.81k resistors do a fine job of isolating the voltage sources.
-a |
Where do the 6.81k resistors go? 
I was just planning to parallel the conductors...
Bob |
|
| Back to top |
|
|
Nate Dort
tinnitus
Joined: 08 Mar 2004
Posts: 1030
Location: Denver
|
| Posted: Fri Apr 01, 2011 3:54 pm Post subject: Re: Mic splitter Y cord |
|
|
| Bob Simpson wrote: |
Where do the 6.81k resistors go?
I was just planning to parallel the conductors...
Bob |
they're in the mic pre. conventional phantom power design requires a 6.81k resistor in line with each signal pin. nothing you have to worry about with your splitter cable.
_________________
natedort.com
Dort Audio Services on facebook
Dort Audio Services on G+ |
|
| Back to top |
|
|
Bob Simpson
audio school
Joined: 24 Mar 2011
Posts: 4
|
| Posted: Fri Apr 01, 2011 7:02 pm Post subject: Re: Mic splitter Y cord |
|
|
Whew!
Thanks, Nate.
I knew I should put resistors in for a combiner, but didn't think I needed them in a splitter.
Bob Simpson |
|
| Back to top |
|
|
dix
audio school graduate
Joined: 21 Dec 2011
Posts: 23
Location: San Francisco
|
| Posted: Mon Mar 05, 2012 9:20 pm Post subject: Re: Mic splitter Y cord |
|
|
I have a Rapco signal-combiner, but I now have a need for a splitter. Would gender-reversing the inputs and outputs on the combiner be the same as using a splitter? …i will need phantom to go to the mic.
Thanks! |
|
| Back to top |
|
|
vvv
on a wing and a prayer
Joined: 13 May 2003
Posts: 5630
Location: Chi
|
| Posted: Tue Mar 06, 2012 2:05 am Post subject: Re: Mic splitter Y cord |
|
|
But mebbe make sure his headset mic's not a ribbon ...
... or not.
_________________
vlayman; THD; blog; TFP |
|
| Back to top |
|
|
|
