Bub 
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I have a unit ... [SOLVED]
... that I hook my mic to that has no effect on it whether phantom power is on or off. My mic says it requires phantom power. Do you absolutely positivellellelly have to have phantom power on for a mic that says it requires it or can it be off and still work? I hear no difference with phantom on or off with the mic and it's plenty loud. Just curious. Well, that, and I'm trying to reach 5k tonight so be prepared for a lot of senseless post. But actually, this is a serious question. Bub.
post edited by Bub - 2012/04/18 18:49:56
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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bapu
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Re:I have a unit ...
2012/04/16 18:31:00
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Bub
prepared for a lot of senseless post. Well done.
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craigb
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Re:I have a unit ...
2012/04/16 18:31:48
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Do you call it "My little wibble?"
Time for all of you to head over to Beyond My DAW!
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Beagle
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Re:I have a unit ...
2012/04/16 18:33:08
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without phantom power the mic should bel outputing VERY low levels - depending on the mic, maybe down around -45dBfs or so.
which mic is it? are you sure you don't have PP on it from somewhere? does it have a battery in the mic? (serious question) or getting PP from somewhere other than the unit you're plugging the mic into?
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Bub
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Re:I have a unit ...
2012/04/16 18:39:23
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Hmmm. I have the Blue Bluebird mic. It says PP required. http://www.bluemic.com/bluebird/#/specs/ I have a Pro MPA II Ref Series two channel tube mic pre. Doesn't matter which channel I plug the mic in to or if I have PP on or off, it's still plenty loud. Seems to me this isn't right, but thought I'd ask before trying to get it swapped. It's still under warranty.
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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Beagle
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Re:I have a unit ...
2012/04/16 18:48:36
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don't know why it would do that without phantom power on.
if you have a DMM you could check the mic input to see if there is DC power between sockets 1 & 2.
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bapu
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Re:I have a unit ...
2012/04/16 18:50:12
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That is weird. I just checked the pics of the unit and it seems like it does not have PP.
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Bub
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Re:I have a unit ...
2012/04/16 18:53:06
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Beagle
don't know why it would do that without phantom power on.
if you have a DMM you could check the mic input to see if there is DC power between sockets 1 & 2.
Boy howdy do I! Had to special order it for working on phone lines. Holds Min & Max AC & DC.
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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Bub
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Re:I have a unit ...
2012/04/16 18:54:06
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bapu
That is weird. I just checked the pics of the unit and it seems like it does not have PP.
I'm afraid to reply to this post. 
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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Jonbouy
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Re:I have a unit ...
2012/04/16 18:54:22
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bapu
That is weird. I just checked the pics of the unit and it seems like it does not have PP.
The mic say it needs PP. What unit are you talking about?
"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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bapu
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Re:I have a unit ...
2012/04/16 18:55:27
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Jonbouy
bapu
That is weird. I just checked the pics of the unit and it seems like it does not have PP.
The mic say it needs PP. What unit are you talking about?
Pro MPA II Ref Series two channel tube mic pre.
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Jonbouy
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Re:I have a unit ...
2012/04/16 18:57:04
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bapu
Jonbouy
bapu
That is weird. I just checked the pics of the unit and it seems like it does not have PP.
The mic say it needs PP. What unit are you talking about?
Pro MPA II Ref Series two channel tube mic pre.
Ahh, yes I missed that bit. The new ART ProMPA II is the next generation in affordable high performance microphone preamp technology. Each microphone input circuit, with selectable 48v phantom power, features variable input impedance which can radically vary the overall performance of any high quality dynamic or ribbon microphone. The ProMPA II can be configured for dual mono or stereo operation with selectable mid/side mic support, summing the adjacent channel, to decode left/right signals.
post edited by Jonbouy - 2012/04/16 19:00:01
"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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Bub
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Re:I have a unit ...
2012/04/16 18:58:40
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"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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Garry Stubbs
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Re:I have a unit ...
2012/04/16 18:59:02
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prepared for a lot of senseless post. Bub
What's new round here?
https://soundcloud.com/garry-kiosk Sonar Platinum 64-bit: Q6600 8Gb Win7 64-bit: KRK Monitors: ART MPA PRO VLA ii preamp: 3 x 500Gb internal SATA disks: Superior Drummer2: GPO4: Realstrat: Saxlab: Rapture: Dimension Pro: Ozone 4: Edirol SPS-660: PCR-500 MIDI controller: Korg PadKontrol: Fender / Gibson / Yamaha / Ibanez guitars:Guitar Rig 5: Dual 22" Monitors: Mapex Drums, Sabian AAX cymbals: Alesis DM5 Pro Kit: SE Electronics and Shure Mics: Mathmos Lava Lamp (40W)
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Jonbouy
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Re:I have a unit ...
2012/04/16 19:01:45
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So you got mic into pre which goes to where?
"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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Beagle
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Re:I have a unit ...
2012/04/16 19:01:52
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Jonbouy
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Re:I have a unit ...
2012/04/16 19:03:18
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"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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bapu
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Re:I have a unit ...
2012/04/16 19:04:14
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Jonbouy
bapu
Jonbouy
bapu
That is weird. I just checked the pics of the unit and it seems like it does not have PP.
The mic say it needs PP. What unit are you talking about?
Pro MPA II Ref Series two channel tube mic pre.
Ahh, yes I missed that bit.
The new ART ProMPA II is the next generation in affordable high performance microphone preamp technology. Each microphone input circuit, with selectable 48v phantom power, features variable input impedance which can radically vary the overall performance of any high quality dynamic or ribbon microphone. The ProMPA II can be configured for dual mono or stereo operation with selectable mid/side mic support, summing the adjacent channel, to decode left/right signals.
The unit I saw did not have it (unless my eyesight is going too). So it would seem that you have the answer to Bubs question.
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Beagle
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Re:I have a unit ...
2012/04/16 19:04:25
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yeah, your posts weren't there when I started mine - I was checking out the website and manual
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bapu
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Re:I have a unit ...
2012/04/16 19:05:30
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Jonbouy
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Re:I have a unit ...
2012/04/16 19:19:53
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Yeah but Bub says it's working whether he switches the PP on or off on the unit already.
I'm wondering what the rest of the signal chain is.
"We can't do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves" - Banksy
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bapu
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Re:I have a unit ...
2012/04/16 19:21:31
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Jonbouy
Yeah but Bub says it's working whether he switches the PP on or off on the unit already.
I'm wondering what the rest of the signal chain is.
DOH! I totally misread the OP.
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Bub
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Re:I have a unit ...
2012/04/16 19:23:58
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I have my mic going in to the Mic Pre, then out to a Compressor that does not have Phantom Power capabilities, then in to my Fast Track Ultra.
I'm running the FTU off USB power so it can't produce Phantom Power so there's no chance of some kind of feedback.
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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Jonbouy
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Re:I have a unit ...
2012/04/16 19:35:54
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Bub
I have my mic going in to the Mic Pre, then out to a Compressor that does not have Phantom Power capabilities, then in to my Fast Track Ultra.
I'm running the FTU off USB power so it can't produce Phantom Power so there's no chance of some kind of feedback.
I dunno then... Have you tried the mic directly into the FTU w/o PP?
post edited by Jonbouy - 2012/04/16 19:37:01
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Crg
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Re:I have a unit ...
2012/04/16 21:51:25
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You almost had me going with that one Bub.
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ampfixer
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Re:I have a unit ...
2012/04/16 22:51:10
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So the compressor is amplifying the signal? Trick question Craig? I don't get it.
Regards, John I want to make it clear that I am an Eedjit. I have no direct, or indirect, knowledge of business, the music industry, forum threads or the meaning of life. I know about amps. WIN 10 Pro X64, I7-3770k 16 gigs, ASUS Z77 pro, AMD 7950 3 gig, Steinberg UR44, A-Pro 500, Sonar Platinum, KRK Rokit 6
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Crg
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Re:I have a unit ...
2012/04/17 19:38:03
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There's no way it's a real situation.
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Bub
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Re:I have a unit ...
2012/04/17 23:43:51
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Crg
There's no way it's a real situation.
It sure is a real situation. Mic - cord - mic pre - comp - fast track ultra - usb - DAW. That's my chain. I have full volume on the mic whether I have the little +48V light lit on my mic pre or not. I was wondering if maybe the mic would still work, but have a limited frequency range, or something like that. I have all my cables tucked away and hidden and it's a real pain to get to stuff, or I would have just plugged it in to my FTU. Don't have another mic cable. The only thing I can think of is, the mic pre unit is wired wrong and it's supplying +48V with the switch on or off. IIRC on my FTU, before I got the mic pre, I would forget to hit the +48V switch on the back and my mic would be dead.
"I pulled the head off Elvis, filled Fred up to his pelvis, yaba daba do, the King is gone, and so are you."
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codamedia
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Re:I have a unit ...
2012/04/18 00:07:16
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Bub,
I have a similar setup. The Pro MPAII (not the ref series) and a Blue Spark (not the Bluebird).
1: The mic is dead when I turn on the pre-amp without phantom (best to try this at the start of a session - read on).
2: When I turn on phantom, it comes to life as expected.
3: When I turn off phantom, it still has life, and lots of it.
4: However - give it 10 minutes without phantom and it becomes unusable once again.
It appears the Blue mics (at least the bluebird and spark) hold the charge for a while, and continue to work. I suspect the sound degrades during the drop of power, so I certainly would not record with it not turned on.
(I tested this with my PVM480 pencil condensers and they do the same thing - but they lose power much quicker (seconds, not minutes)
Don't fix it in the mix ... Fix it in the take!
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Old55
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Re:I have a unit ...
2012/04/18 00:19:29
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Do you have or can you borrow another mic with PP to check the Pre? Have you gone directly into the FTU like Jon suggested? It's a good idea to simplify the chain and remove as many variable as possible.
Should auld acquaintance be forgot--hey, who the hell are you guys? X2(X3 pending hardware upgrade), Emulator X2, E-mu 1212M, Virtual String Machine
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