Re: [LAU] Snare drum mic too hot

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: <linux-audio-user@...>
Date: Sunday, May 10, 2009 - 8:38 pm

Brent Busby writes:

> Just so the original poster knows, switching on phantom power sends 48

This is accurate, but misses an important detail. The 48V DC is applied
between the cable shield and the balanced pair, not between hot and cold
of the balanced pair. If your dynamic/ribbon microphone is correctly
wired (i.e. with the element between hot and cold, not between hot and
the shield) then it's safe, because there is no DC across the element;
if it's not correctly wired, you should fix it anyway -- both because
you'll get better noise performance, and in case someone *else* plugs it
into an input with phantom power...

--
Adam Sampson
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
[LAU] Snare drum mic too hot, Scott, (Sat May 9, 11:14 pm)
Re: [LAU] Snare drum mic too hot, Paul Coccoli, (Sun May 10, 3:14 pm)
Re: [LAU] Snare drum mic too hot, Mark Knecht, (Sun May 10, 1:26 am)
Re: [LAU] Snare drum mic too hot, Kevin Cosgrove, (Sun May 10, 12:44 am)
Re: [LAU] Snare drum mic too hot, Ray Rashif, (Sat May 9, 11:51 pm)
Re: [LAU] Snare drum mic too hot, Scott, (Sun May 10, 12:54 am)
Re: [LAU] Snare drum mic too hot, Darren Landrum, (Sun May 10, 3:36 pm)
Re: [LAU] Snare drum mic too hot, Paul Coccoli, (Sun May 10, 3:24 pm)
Re: [LAU] Snare drum mic too hot, Brent Busby, (Sun May 10, 4:28 pm)
Re: [LAU] Snare drum mic too hot, Adam Sampson, (Sun May 10, 8:38 pm)
Re: [LAU] Snare drum mic too hot, drew Roberts, (Sun May 10, 5:19 pm)
Re: [LAU] Snare drum mic too hot, Fons Adriaensen, (Sun May 10, 5:50 pm)
Re: [LAU] Snare drum mic too hot, Scott, (Sun May 10, 4:49 pm)