Does anybody sell pre-made resistor "gizmos" for sm57/58 mics?
Scott Dorsey wrote:
> Roy W. Rising > wrote:
>> When I started in TV sound in '65, I was told the mic preamp input impedanc=
>> e should be "2K or greater" to avoid loading ribbon mics, which lose HF per=
>> formance when loaded.
> And see, when I started in the seventies, I was told the opposite, that
> ribbons wanted to see a lower impedance. Roy is correct, and Olson backs
> him up, and what I was told was wrong, but apparently a lot of people
> believed it at the time.
>> Dynamic mics generally "care" less about loading, wi=
>> th the exception of the SM57/58 as discussed here. EV co-founder Lou Burro=
>> ughs told me that as of the "Research Engineering" era, EV dynamics would n=
>> o longer use transformers for impedance selection.
> If you want microphones that are efficient and have high output, you get
> tight coupling and live with loading changing the response. If you can
> make the magnetic circuit lossy, they won't be as sensitive to load.
> One of the things about the SM-57 is that it uses a very low-Z winding with
> a few big turns, going into a step-up transformer. The later EV dynamics used
> higher impedance windings without the transformer, which was a win sonically
> but might have made them less rugged.
>> The successor to the EV=
>> 666 (with transformer) is the RE15. Lou said that inline attenuators' loa=
>> ding would not affect performance and that a true 150 ohm load would only l=
>> ower the level by 6dB. With all of the variables surrounding mic performan=
>> ce, I decided to step beyond the esoteric practice of "mic selection". Ins=
>> tead, I started using RE15s on "everything", in part because EQ on every in=
>> put was appearing. My other reason was that mixing TV orchestras amounted =
>> to mixing leakage. The RE15 is flat from all directions, hence "better" le=
>> akage. I have a matched pair for my desert island gig.
> The RE15 is an unsung hero, alongside the Sennheiser 441. Both sound pretty
> good when you're standing behind them. Try THAT with an SM-57.
Yeah, but gain before feedback...
I used an RE11 as a stage vocal mic for a while but switched to an Audix
i5 ( even more SM57 than an SM57 ) because feedback.
The RE11 might be the nest guitar amp mic I own.
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