boris_plotnikov
1090 posts
Dec 18, 2015
2:52 AM
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I had Shure 545SD in my drawer for sime years. It was turned to Low Impedance, I tried it plenty times using inline transformer, compared it to SM57 (and it was much better), but comparing to my EV N/D967 it was so-so, less output, not as wide spectrum as I wanted. But recently just for fun I swithed it to Hi impedance and I was wondered how great and different it sounds! Yesterday I played a whole gig, and I started to think it will by my mic of choice!
Any other experinces of comparing it in different impedances?
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barbequebob
3080 posts
Dec 18, 2015
8:24 AM
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A real 545SD in low-z is a very rare animal being in stock form and most of them I've seen have always been hi-z and the hi-z ones have always sounded better not just for harp, but for vocals as well (when they first came out in the 60's, most PA's were all with hi-z mics except for maybe use in very high volume concert situtions or in a recording studio) and a similar thing goes for PE-585's, 565's, and 533's as well.
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timeistight
1913 posts
Dec 18, 2015
9:06 AM
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All the Shure mics with the R45 cartridge (like the 545 SD) were dual impedance except the original PE54 with the pistol grip, which was high impedance only, and the little 545L, which was low only.
Most harp players prefer the dual impedance mics set to high impedance, which seems to produce a hotter signal than running low impedance into an inline transformer. The pistol-grip PE54 is even hotter.
http://www.angelfire.com/music/harmonica/shure545.html
Last Edited by timeistight on Dec 18, 2015 3:38 PM
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Greg Heumann
3140 posts
Dec 19, 2015
1:50 PM
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I have had HUNDREDS of 545's through my shop, of every model and every generation.
Shure still sells the 545SD to this day. They have always from the factory set for low impedance and in my experience most of them (545SD with XLR connectors) are STILL set to low impedance.
Setting one for high impedance means using an unbalanced XLR to 1/4" cable. Easily acquired, confuses the hell out of every one. You use one with a low impedance mic and it works but very poorly. And if you do the low-to-high conversion using Shure's instructions your cable will have to be Pin 3 Hot, which is getting less and less common (and is incompatible with some wireless transmitters like Samson's AX1, while a Pin 2 Hot configuration is not.
There is VERY little difference between the high- and low-Z configurations' output as long as each is PROPERLY CABLED.
Yes, the single impedance, high-Z only PE54 was the best model for blues harp as far as I'm concerned.
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/Greg
BlowsMeAway Productions
See my Customer Mics album on Facebook
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KC69
490 posts
Dec 19, 2015
5:18 PM
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Hey Greg: I have the PE54 series 2
dynamic on a pistol grip with on/off switch. It has a 3 pin connector with a very thin cord to 1/4 inch. I'm sure I showed this to you at HCH 2102. Is this the same as the PE54 you are talking above? My buddy used it back in the late 60s. I have an SM57 Ultamitized, didn't know if this would sound any different.
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Last Edited by KC69 on Dec 19, 2015 5:19 PM
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Greg Heumann
3141 posts
Dec 19, 2015
5:25 PM
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If it is a PE54D it has the dual impedance transformer. If it is a straight PE54 it probably has the high impedance only transformer. It will be a little dirtier and stronger than the 57. A little.
Another way to tell about the transformer is to pull out the mic's connector. If it only has a black and white wire leading to it, that's the high-Z only transformer. If it also has blue and red wires then it is a dual impedance transformer - but even those early dual impedance transformers sound better (a little) than the new ones.
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***************************************************
/Greg
BlowsMeAway Productions
See my Customer Mics album on Facebook
Bluestate on iTunes
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