jraffertyuswest.net Posted March 6, 2001 Share Posted March 6, 2001 I have 12 XLR inputs on my O1v. But there are only TWO phantom power switches. One activates the ENTIRE first bank of 6 inputs. The other activates the ENTIRE second bank of six inputs. The problem is I only need TWO channels of phantom power for my c1000's as overheads. This means that the phantom power for the remaining 4 inputs on that bank is on. Sometimes I need these inputs. Is it ok to have mics such as sm57's, 58's, or other dynamic/non-powered mics plugged into these inputs with the phantom power on? Will it damage something? thanks, -Josh. Link to comment Share on other sites More sharing options...
rumpelstiltskin. Posted March 6, 2001 Share Posted March 6, 2001 do not use phantom power with a dynamic mic. you may get away with not damaging the mic, but you should not put phantom power on dynamics. because i like people. Link to comment Share on other sites More sharing options...
Uh Clem Posted March 7, 2001 Share Posted March 7, 2001 Hmm - can't imagine what prompted such an emphatic, yet incorrect answer - check Rogers' board for the real deal or this: http://www.musicplayer.com/ubb/Forum3/HTML/000399.html In short, it is is fine for dynamic mics and most equipment - when in doubt, check your manuals. Steve Powell - Bull Moon Digital www.bullmoondigital.com Link to comment Share on other sites More sharing options...
Throatsinger Posted March 7, 2001 Share Posted March 7, 2001 Oh, I dunno, StevePow. I've seen that response in MANY articles, books, etc. Seems to be some legit confusion. I've also heard: dynamics bad, ribbons ok. Steve Sklar/Big Sky Steve Sklar http://khoomei.com http://www.bigskyrocks.com Link to comment Share on other sites More sharing options...
Philip OKeefe Posted March 7, 2001 Share Posted March 7, 2001 Steve, there was another thread where this was discussed - I think over on David's forum. Anyway, phantom on dynamics isn't going to hurt anything, but you NEVER want to use it when a ribbon mic is plugged in. Phil O'Keefe Sound Sanctuary Recording Riverside CA http://members.aol.com/ssanctuary/index.html email: pokeefe777@msn.com Link to comment Share on other sites More sharing options...
videoeditor1 Posted March 7, 2001 Share Posted March 7, 2001 I handle production on live gigs. Sometimes there is phantom power on a dynamic mic or a passive DI, no problem. Sometimes one of my knuckleheads has phantom power active on a channel at monitor world, or @ FOH. Sometimes the guys doing remote recording inadvertently fire up phantom on a line, never seen a problem. Of course, having NO PHANTOM power on a active DI or condenser mic is not cool. As a rule, I've always dictated that the monitor console should be capable of supplying phantom (it's closest to the source, and can follow stage changes), and that only monitor world handles phantom. Later. NYC Drew This message has been edited by NYC Drew on 03-06-2001 at 05:58 PM Link to comment Share on other sites More sharing options...
Nika Posted March 7, 2001 Share Posted March 7, 2001 Originally posted by Steve Sklar: Oh, I dunno, StevePow. I've seen that response in MANY articles, books, etc. Seems to be some legit confusion. I've also heard: dynamics bad, ribbons ok. Steve Sklar/Big Sky Steve, I have never heard the above or seen it in any book. Dynamics are always OK (providing proper cabling). Most ribbons are OK so long as you don't switch phantom on or off while it's plugged in. Safest is Dynamics OK, Ribbons bad. Thanx! Nika. For more... Link to comment Share on other sites More sharing options...
Uh Clem Posted March 7, 2001 Share Posted March 7, 2001 Gee wiz, an ounce of research is worth a pound of speculation - I hope the Royer guys don't mind my lifting this - I love my R-121, even live on a Mackie with the phantom on (there!): Can phantom power damage a ribbon mic? Phantom power will not damage a Royer ribbon, provided that the cable is not miswired. Phantom power can damage the ribbon on some older ribbon microphones that utilized an output transformer with a grounded center tap at the output. With Royer mics, as long as your wiring is correct phantom power will not give you any trouble. Let's plug (pardon the pun) Mackie also while we're at it: phantom power A system of providing electrical power for condenser microphones (and some electronic pickup devices) from the sound mixer. The system is called phantom because the power is carried on standard microphone audio wiring in a way that is "invisible" to ordinary dynamic microphones. Mackie mixers use standard +48 volt DC power, switchable on or off. Most quality condenser microphones are designed to use +48 VDC phantom power. Check the manufacturers recommendations. Generally, phantom power is safe to use with non-condenser microphones as well, especially dynamic microphones. However, unbalanced microphones, some electronic equipment (such as some wireless microphone receivers) can short out the phantom power and be severely damaged. Check the manufacturers recommendations and be careful! Steve Powell - Bull Moon Digital www.bullmoondigital.com Link to comment Share on other sites More sharing options...
jraffertyuswest.net Posted March 7, 2001 Author Share Posted March 7, 2001 Cool thanks. I think I will go with the theory that it is O.K. since that was the overwhelming response. Later, -Josh. Link to comment Share on other sites More sharing options...
Punchmo Posted March 7, 2001 Share Posted March 7, 2001 Thanks for your research and the manufactures' confirmation of the phantom power thang. I would like to add that it pays to read the manuals for some of the shit you want to plug into your board. I have a Manley single channel tube DI that specifically recommends not to use phantom power. FWIW Link to comment Share on other sites More sharing options...
KenElevenShadows Posted March 8, 2001 Share Posted March 8, 2001 Just to add to the overwhelming response... I've been plugging in my 421s and 57s for years with my Mackie 1202, which has to have the phantom power running in all four of the mic preamps, and I've never had a problem. I'm told constantly not to run older ribbons (The Royer is considered far more rugged than most ribbon mics and is often an exception where abuse is concerned). This, however, is not a big concern for me since I don't own any ribbons! Also, I don't believe it is *ever* advisable to plug or unplug ANY microphone, dynamic, condenser, or otherwise -- with the phantom power running. ------------------ Ken/Eleven Shadows/d i t h er/nectar ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ music*travel photos*tibet*lots of stuff "Sangsara" "Irian Jaya" & d i t h er CDs available! http://www.elevenshadows.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ken Lee Photography - photos and books Eleven Shadows ambient music The Mercury Seven-cool spacey music Linktree to various sites Instagram Nightaxians Video Podcast Eleven Shadows website Ken Lee Photography Pinterest Page Link to comment Share on other sites More sharing options...
murph Posted March 8, 2001 Share Posted March 8, 2001 Since I happen to have two cents on me... While it's alright to have dynamic mics plugged in with phantom pwr on, it's not wise to have phantom pwr on when there isn't a reason to have it on. If you don't have any condensors that need it, turn it off. On some mixers, you will get noise by leaving phantom on, and possibly even do some internal damage. Bill Murphy www.murphonics.com Link to comment Share on other sites More sharing options...
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