Home |
Search |
Today's Posts |
#1
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Hello,
I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. |
#2
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
On 8/26/2011 10:18 PM, joe h wrote:
Hello, I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. No. The two wires were probably going to pins 2 and 3. The shield/ground (pin 1) was probably a jumper to the mic case. That's the way the AKG mic I just opened was wired. If they were unbalanced, phantom power from a preamp input would zonk them. |
#3
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Thanks, that's interesting.
So maybe it's using (as you said) the casing as a ground rather than pin 3. I didn't know that was possible. |
#4
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
joe h wrote:
Hello, I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. A balanced connection only required two wires. We're used to +/- and ground for a third wire. -- Les Cargill |
#5
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
joe h wrote:
I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. That has never been true. The mike is balanced, both 2 and 3 are driven. 1 is tied to ground at the connector, which is why only two pins are 'used.' The mike _is_ made in Mexico, and Fletcher says the Mexican ones sound different than the older US ones. I can't tell the difference myself. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#6
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
On 8/26/2011 10:52 PM, joe h wrote:
So maybe it's using (as you said) the casing as a ground rather than pin 3. I didn't know that was possible. The guy at Guitar Center didn't know what he was talking about. There's a transformer that's connected to pins 2 and 3. Pin 1 is mechanically connected to the case and is used for the shield connection. Pin 1 has always been the shield and is only used as "ground" when you have phantom power. You'll still get a perfectly good signal from the mic without pin 1 connected, but you may get more hum if it's being used in an electrically noisy environment. Or maybe not if the input is accurately differential. Shure mics have been built in Mexico for a long time. I haven't heard that this has changed. -- "Today's production equipment is IT based and cannot be operated without a passing knowledge of computing, although it seems that it can be operated without a passing knowledge of audio." - John Watkinson http://mikeriversaudio.wordpress.com - useful and interesting audio stuff |
#7
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Thanks everyone.
The amount of genuine knowledge of audio circuits on this newsgroup is amazing. |
#8
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Mike Rivers wrote:
The guy at Guitar Center didn't know what he was talking about. Imagine that! ... -- shut up and play your guitar * http://hankalrich.com/ http://www.youtube.com/walkinaymusic http://www.sonicbids.com/HankandShaidri |
#9
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Scott Dorsey wrote:
joe h wrote: I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. That has never been true. The mike is balanced, both 2 and 3 are driven. 1 is tied to ground at the connector, which is why only two pins are 'used.' The mike _is_ made in Mexico, and Fletcher says the Mexican ones sound different than the older US ones. I can't tell the difference myself. --scott They have a different accent. -- shut up and play your guitar * http://hankalrich.com/ http://www.youtube.com/walkinaymusic http://www.sonicbids.com/HankandShaidri |
#10
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
On 8/27/2011 3:35 PM, hank alrich wrote:
The mike _is_ made in Mexico, and Fletcher says the Mexican ones sound different than the older US ones. I can't tell the difference myself. --scott They have a different accent. My Spanish voice-over work is better when I'm using an SM-57 than a U87. I never learned how to speak German, but my high school Spanish teacher was Señor Wilheim (from the home of AKG mics) -- "Today's production equipment is IT based and cannot be operated without a passing knowledge of computing, although it seems that it can be operated without a passing knowledge of audio." - John Watkinson http://mikeriversaudio.wordpress.com - useful and interesting audio stuff |
#11
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
"Mike Rivers" wrote in message ... On 8/26/2011 10:52 PM, joe h wrote: The guy at Guitar Center didn't know what he was talking about. Say it ain't so. :{} malachi |
#12
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
On Aug 27, 11:05*am, joe h wrote:
Thanks everyone. The amount of genuine knowledge of audio circuits on this newsgroup is amazing. Yeah and the jokes are pretty good also. |
#13
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
hank alrich wrote:
They have a different accent. I thought it was a special batch made for Britney Speirs. geoff |
#14
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
geoff wrote:
hank alrich wrote: They have a different accent. I thought it was a special batch made for Britney Speirs. "Accent", Geoff, not "accident". -- shut up and play your guitar * http://hankalrich.com/ http://www.youtube.com/walkinaymusic http://www.sonicbids.com/HankandShaidri |
#15
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
hank alrich wrote:
geoff wrote: hank alrich wrote: They have a different accent. I thought it was a special batch made for Britney Speirs. "Accent", Geoff, not "accident". I was referring to the 'unbalanced' , but yeah .... ;-) geoff |
#16
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
On Fri, 26 Aug 2011 22:18:16 -0400, joe h wrote
(in article ): Hello, I remember a few years ago a salesperson at Guitar Center opened up either an SM57 or SM58. He showed me how only two of the three wires were being used, and that the mic was in fact running as an unbalanced mic. He also pointed out that they were now being made in Mexico instead of the U.S. Is that still true? I can't understand why they would turn the 57 and/ or 58 into unbalanced mics for no apparent reason. which Guitar Center? Regards, Ty Ford --Audio Equipment Reviews Audio Production Services Acting and Voiceover Demos http://www.tyford.com Guitar player?:http://www.youtube.com/watch?v=yWaPRHMGhGA |
#17
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Il 27/08/2011 4.52, joe h ha scritto:
Thanks, that's interesting. So maybe it's using (as you said) the casing as a ground rather than pin 3. I didn't know that was possible. pin 1 is connected to the case without wire! there's a small spring to assure the electrical contact. pin 2 is positive and pin 3 is negative, as usual. Being build in mexico doesn't mean they umbalanced the mic.... alex |
#18
Posted to rec.audio.pro
|
|||
|
|||
SM57/SM58 mics... now unbalanced?
Il 27/08/2011 21.35, hank alrich ha scritto:
Mike wrote: The guy at Guitar Center didn't know what he was talking about. Imagine that! ... :-) |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
SM58 with 600 Ohm termination | Pro Audio | |||
Broken Shure SM58 copy | Pro Audio | |||
FS Shure SM58 | Pro Audio | |||
FS Shure SM58 | Pro Audio | |||
SM57 vs. SM58 | Pro Audio |