superspit
idiots unite!
COOLCAT said:
mmmm...that is odd.
generally, on a desk anyway, the dynamics don't actually 'see' the 48volts.
So you can safely run any type of mics at the same time, with phantom power on.
Like to know more about this....
CoolCat
Well-known member
thats what I always thought too. it doesn't hurt the dynamics, but the 48V mic won't work without the 48V?
its got my brother freaked. and I didn't want to have him fry something because I really don't.
hopefully someone will explain this in detail. (and laymens terms).
never use unbalanced dynamic mics while the 48V is turned on?
A thru D is just channels 1-4 on the 2488 btw.
its got my brother freaked. and I didn't want to have him fry something because I really don't.
hopefully someone will explain this in detail. (and laymens terms).
never use unbalanced dynamic mics while the 48V is turned on?
A thru D is just channels 1-4 on the 2488 btw.
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superspit
idiots unite!
COOLCAT said:
indeed........I run a combination of powered and dynamic, balanced and unbalanced mics everyday, with a few different desks, (depends where I'm at)......and never hurt anything. (I'm Looking at the electrical schematics, it just can't seem to)...unless your mic wiring is screwed or incorrect?)
Maybe the 2488 is a different kettle of fish?
JCM900
New member
I believe they mean unbalanced as in 1/4 inch or unbalanced XLR If you're using normal balanced XLR mic cables on the Shure mics, you will be fine to have the Phantom power on.
superspit
idiots unite!
JCM900 said:
yeah....I guess I understand an unbalanced (or incorrectly wired) XLR to XLR on dynamics could be a risk to the dynamic mics with phantom on. But a 1/4 jack on the desk to XLR on the dynamic mic wouldn't 'see' any phantom power, as it's just not supplied to it(?)....therefore safe.(?)
So, on that basis,...........
using balanced XLR to XLR on the dynamics should be absolutely safe while powering a condensor on another channel.
Using 1/4 inch on desk (balanced or unbalanced) to standard mic XLR should be safe. (based on no power supplied to 1/4 inch connections).......
(this is what I do when recording a kit with dynamics and condensor).
But using an unbalanced XLR to XLR (incorrectly wired, I've seen this happen!) on your dynamics while phantom is on could be dangerous to them.
So by JCM saying that if you use the proper balanced XLR to XLR connector for your 57's while phantom is on, you should be fine, I'd agree. channels A B C D.
By the same token, if you use a balanced/unbalanced 1/4 to plug into your unit/desk with phantom on, channels E F G H, you'll also be fine.
Just use the right cables that came with your 57's (balanced XLR to XLR).
Or, if still scared, use channels E F G H 1/4 for dynamics, and put your condensor onto A B C or D.......safe bet until you're sure!!
faaaaaaaaaaaaarrrrrrrkkkk..........
please jump in people!!!,... is our logic right or is this guy going to burn something?
regards...........
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CoolCat
Well-known member
so basically no one seems to think there is a problem except for a "possible" miswired XLR hooked to a dynamic...as I read this.
thanks.
thanks.
Farview
Well-known member
This is only a problem if you have an unbalanced mic plugged into the xlr.
The only way this would occur is if you have an unbalanced mic with a 1/4 end plugged into a 1/4 to xlr adapter. You really have to go out of your way to screw this up.
The only way this would occur is if you have an unbalanced mic with a 1/4 end plugged into a 1/4 to xlr adapter. You really have to go out of your way to screw this up.
superspit
idiots unite!
Farview said:
there you go!!!.........enjoy!!
CoolCat
Well-known member
Thanks to everyone.
superspit....my brother liked yours
if still scared, use channels E F G H 1/4 for dynamics, and put your condensor onto A B C or D
"scared"...all Dynamics to the right plugs please,tally ho, don't worry be happy. Segregation of mic inputs for safety.
I still don't get it, really..
thought i'd share this strange clip i stumbled across-
For phantom to work all 3 circuits of the Mic cable must be good from Mixer to mic.
Often the shield [outer sheath] is not connected through the patchfield.For balanced circuits the shield only shields from interference, its not needed for the actual audio signal.But phantom relies on the shield as the 0volt reference with 48volt on the Tip and Ring.This equates to Pins 2&3 of mic XL connector=48volt and Pin 1 is 0V.Check mic side of patchbay with a meter between sleeve & Tip =48V plus sleeve to Ring =48Volt.If not present check the mixer side of the patchbay for the same.Garry.
so there maybe more scenarios than I thought?
superspit....my brother liked yours
if still scared, use channels E F G H 1/4 for dynamics, and put your condensor onto A B C or D
"scared"...all Dynamics to the right plugs please,tally ho, don't worry be happy. Segregation of mic inputs for safety.
I still don't get it, really..
thought i'd share this strange clip i stumbled across-
For phantom to work all 3 circuits of the Mic cable must be good from Mixer to mic.
Often the shield [outer sheath] is not connected through the patchfield.For balanced circuits the shield only shields from interference, its not needed for the actual audio signal.But phantom relies on the shield as the 0volt reference with 48volt on the Tip and Ring.This equates to Pins 2&3 of mic XL connector=48volt and Pin 1 is 0V.Check mic side of patchbay with a meter between sleeve & Tip =48V plus sleeve to Ring =48Volt.If not present check the mixer side of the patchbay for the same.Garry.
so there maybe more scenarios than I thought?
superspit
idiots unite!
COOLCAT said:
Hi...if phantom power is actually supplied to the 1/4's then yes......
but it's not on your 2488 unit, or my desk,......so...........
actually, it's very simple in a practical sense.......just use your dynamics on the 1/4's, and condensors on the XLR side, as i suggested to you prior. Done!!
Go do some recording and have a blast!! (ummm...I mean, fun!)
Farview
Well-known member
Do you have your mic inputs connected to a patchbay with the shield isolated? No, neither do most people. If you are using balanced cables for all your mics, you will be fine. I have the phantom power permenently turn on on my mixer. It's been on for almost 10 years. I have not blown up any mics, shorted out the board, incinerated interns, etc...COOLCAT said:
That disclaimer is there so that they are not liable for some moron that went to radio shack and bought 4 adapters so he could plug his computer mic into the xlr connector on his saib. If you are actually using real dynamic mics with 3 prong plugs and you haven't jury rigged a cable, you will be fine.
CoolCat
Well-known member
yeah, me neither..never saw a Phantom destroying anything.
I never paid much attention to it all, my brother will not be making his own cables anyway, all standard cables.
Its always been a bit of a mystery tho, what the phantom does...48V sounds like a lot of damn electricity for a microphone? 48V= damage/warning.
its a vague statement in the manual. causes confusion..and then says ASK YOUR LOCAL EXPERT????
He asked "will using the Phantom on the mixer hurt the 2488? "
"What if the 2488 and the MIXER 48V was ON at the same time??"
And "what if the MIXER 48V was ON and will it hurt the 2488 input?"
I wondered where does the 48V terminate? you can't have 48V flowing around everywhere, all those electrons and ion's and metal grain sizes changing.
I never paid much attention to it all, my brother will not be making his own cables anyway, all standard cables.
Its always been a bit of a mystery tho, what the phantom does...48V sounds like a lot of damn electricity for a microphone? 48V= damage/warning.
its a vague statement in the manual. causes confusion..and then says ASK YOUR LOCAL EXPERT????
He asked "will using the Phantom on the mixer hurt the 2488? "
"What if the 2488 and the MIXER 48V was ON at the same time??"
And "what if the MIXER 48V was ON and will it hurt the 2488 input?"
I wondered where does the 48V terminate? you can't have 48V flowing around everywhere, all those electrons and ion's and metal grain sizes changing.
Farview
Well-known member
The 48 volts is just at the xlr mic inputs. It goes through the mic cable to the mic. That's it. If the mic doesn't use it, nothing happens.
If you are coming out of the 2488 output into the mic input of your mixer, that would be a bad thing. It would also be improper gain staging since the output of the 2488 is line level, not mic level.
Like I said, you have to go very far out of the way to fuck this up.
Phantom power is only present at the mic inputs.
If you are coming out of the 2488 output into the mic input of your mixer, that would be a bad thing. It would also be improper gain staging since the output of the 2488 is line level, not mic level.
Like I said, you have to go very far out of the way to fuck this up.
Phantom power is only present at the mic inputs.
S
soundchaser59
Reluctant Commander
superspit said:
Everything said here is correct. Phantom will NOT damage a BALANCED dynamic mic, and phantom power is not present on the 1/4 inch lines anyway. Just remember not to use a ribbon mic with phantom power on. And make sure all your mics are plugged in before you turn phantom power on or off. Plug in all the mics before you turn phantom on, and turn phantom off before you unplug any mics.
M
MCI2424
New member
COOLCAT said:
+48v phantom power will only work with a PROPERLY wired balanced cable because BOTH signal carrying wires are at the same potential (ie:+48vdc)
Unbalaced or miswired balanced cables (ie: 1 signal wire shorted to gnd) will put all of the available current through the dynamic mics capsule and POOF!
Mic blown away.
Ribbons (ie: Coles etc. big $$$$) will be fried instantly (if not sooner) which is WHY I WILL KILL any assistant in my studio if I see any phantom power anywhere near ribbons or dynamics. Turn OFF the channel you are using these mics on and FORGET the stupid advice about phantom power not destroying dynamics or ribbons. All you need is 1 bad cable to ruin your complete day (or year depending on your income).
Enough said. The rest of the forum can fire at will.............
superspit
idiots unite!
MCI2424 said:
mmmmm......Ribbons? (where did they come in)......Stupid? (are you calling me/us stupid?)
Anyways....gotta go fry some stupid Ribbons while reading phantom comics and returning fire!!!
Regards,
Superspit.
M
MCI2424
New member
superspit said:
mmmmm......Ribbons? (where did they come in)......Stupid? (are you calling me/us stupid?)
Anyways....gotta go fry some stupid Ribbons while reading phantom comics and returning fire!!!
Regards,
Superspit.
I told you guys, fire at will with your great advice..................
Ribbons, dynamics, condensors will all fry with a bad cable..........
Wait 'till it happens to you.............................
Keep onHappy Thanksgiving!
superspit
idiots unite!
MCI2424 said:I told you guys, fire at will with your great advice..................
Nah....you're a good bloke......with good advice.....some of us are just bored and like the idea of smoking our expensive mics with 48volts and crappy cables..
I'm sure the original thread starter will be either fine or shit scared because of our/your advice!!
Anyways...again....my hat off to you and keep rockin'.....fuck yeah!!
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