Question about AKG D8000S Professional Microphone

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Loss of bass frequencies in dynamic mics

I have at least a couple of dynamic mics (audio technica ATM63HE and sennheiser nd537 ) which show very very less bass frequencies compared to other mics, even the same model, is it because the coil is somehow broken or moved or what could it be?
thanks and regards

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Re: loss of bass frequencies in dynamic mics

That's one correct assumption, but it's actually the element that gets damages causing the coil to rub. Open the top up and see if there is any damage, sung a magnifying glass as the tiniest crack could go un-noticed by the naked eye.

In testing these 2 did you change the frequency at all? trying with a different receiver, having another mic on the "bad" mics frequency?

Loss of lows can also be a sign of a bad wire as this sometimes tend to act as a high pass filter.

Did you do the obvious, change batteries?


Posted on Dec 23, 2007

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To get a basic idea of which frequencies are available in your area, try this online tool:
or use the literature provided with the Sennheiser gear (usually a useful chart comes with the wireless gear).

Also, remember that your transmitting frequencies need to be spaced apart a minimum of .400 MHz (or 400 kHz).

Frequency selection shouldn't cause feedback problems though. If you select a frequency for a mic that a local TV station is already using to broadcast, it will cause RF Interference (Radio Frequency). You'll probably hear static noises, pops, or since your Sennheiser has a Squelch feature, just drop-outs in audio.

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Some golden rules for microphone selection.
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2) For a vocalist, make sure the mic is a reasonable size. If it is too small and you need to hold it, after a while it becomes fiddly and uncomfortable.
3) When singing always use a foam hood or pop filter with the microphone. This will reduce explosive sounds on the letter "P" etc.
4) Choose a microphone with a wide frequency response but not too much bass which can make vocals sound boomy.
5) Finally, the microphone must have a reasonable dynamic range so that if you suddenly shout it does not distort excessively, but it will also work when you speak or sing softly.

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