So I picked up a new Beyerdynamic m130, and I was surprised at how quiet the mic is and conversely, how much noise is audible when the preamp is cranked so that the source is at a reasonable level.
My source is a fairly loud acoustic guitar, the mic placement is about 6 inches from the guitar, pointed at the spot between the neck and the soundhole. I've been switching between two preamps, a summit 2ba 221, and the stock preamps in my mbox pro. I'll also try a few other preamps in the coming days, but for now the mbox pro actually seems to have less hiss / fuzz. I wonder if the increased noise from the summit could be attributed to the unbalanced connection I'm using to hook it up? (a 6 inch 1/4" cable.)
I've used some budget ribbon mics in the past, and realize that they generally have a pretty low output, but I figured the Beyer would do a little better from a noise perspective. Is this to be expected, or is it possible that my new mic is defective?
new beyer m130 - noisy
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new beyer m130 - noisy
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Impedance matching can help some, but in general, these are low output devices.winky dinglehoffer wrote:Try a different pre or two--I have one ribbon that can sound very noisy with certain preamps, but not so much with others. If it's lower output/higher noise than you're used to getting with ribbons, there might be a problem.
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The M130 should be slightly lower output than an SM57 (1.3 mV/Pa for the M130 vs. 1.6 mV/Pa for the 57).
If you have one mic pre that sounds good with the microphone, and another that is noisy, I would say that is a function of the mic pre ( many mic pre's can get noisy at the upper range of their gain settings).
The test would be plug in a 57 to the noisy mic pre and crank the gain. Is the output/noise on par with when you plug in the M130? If not, you may have a bum mic.
Regards
Jon
If you have one mic pre that sounds good with the microphone, and another that is noisy, I would say that is a function of the mic pre ( many mic pre's can get noisy at the upper range of their gain settings).
The test would be plug in a 57 to the noisy mic pre and crank the gain. Is the output/noise on par with when you plug in the M130? If not, you may have a bum mic.
Regards
Jon
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I used a summit 2ba-221 to mic a quiet amp with a modded Apex 210 recently.
4 things that could help you.
-Try not to use the tube saturation, using the solid state pre worked best.
-Use an xlr to trs cable. It'll increase the level a bit.
-adjust the 2ba's impedence to match the mic's.
-flip the polarity, just to see if that helps.
And one issue:
You are using the m-box's line in. It may still pass through the mic pre gain stage, it did on the old m-boxes anyway. Pro may not, but if it does that'll give your more noise.
4 things that could help you.
-Try not to use the tube saturation, using the solid state pre worked best.
-Use an xlr to trs cable. It'll increase the level a bit.
-adjust the 2ba's impedence to match the mic's.
-flip the polarity, just to see if that helps.
And one issue:
You are using the m-box's line in. It may still pass through the mic pre gain stage, it did on the old m-boxes anyway. Pro may not, but if it does that'll give your more noise.
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