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Sennheiser K3u omni

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Sennheiser K3u omni

Postby mjfe2 » Tue May 01, 2012 10:37 am

Couldn't find much on Google -- what are these mics equivalent to? Anyone know how they are equalised?
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Re: Sennheiser K3u omni

Postby John Willett » Tue May 01, 2012 7:40 pm

You mean the ME 62.

Info is HERE.

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Re: Sennheiser K3u omni

Postby mjfe2 » Tue May 01, 2012 7:44 pm

Oh yes, so not discontinued after all! Does 'pre-polarised condenser microphone' mean it's not a true omni i.e. it won't reach properly low frequencies?
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Re: Sennheiser K3u omni

Postby James Perrett » Wed May 02, 2012 9:30 am

Pre polarised means that the diaphragm has a permanent electric charge so the capsule doesn't need an external polarising voltage. This is often called an electret condenser mic. It has nothing to do with the polar response of the capsule.

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Re: Sennheiser K3u omni

Postby John Willett » Wed May 02, 2012 7:59 pm

mjfe2 wrote:Oh yes, so not discontinued after all! Does 'pre-polarised condenser microphone' mean it's not a true omni i.e. it won't reach properly low frequencies?

"pre-polarised" is another way of saying "electret" - it has nothing to do with the polar-pattern.

The ME 62 is a true omni and the directionality at high frequencies is normal and is only due to the blocking effect of the body.

For the money, it's a nice mic.
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Re: Sennheiser K3u omni

Postby Jeraldo » Wed May 02, 2012 8:37 pm

John-do you know what the thickness of that electret diaphragm is?

It's a curiosity question only, and I ask only because some past ones by other (well known) manufacturers have been on the rather thick side, more modern ones have been as little as 2 microns. Perhaps it's about 6?

I would bet the mic is a nice one, regardless of the price. It's a good series of mic's.
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Re: Sennheiser K3U omni

Postby John Willett » Thu May 03, 2012 8:34 am

Jeraldo wrote:John-do you know what the thickness of that electret diaphragm is?

It's a curiosity question only, and I ask only because some past ones by other (well known) manufacturers have been on the rather thick side, more modern ones have been as little as 2 microns. Perhaps it's about 6?

I would bet the mic is a nice one, regardless of the price. It's a good series of mic's.

I don't know the exact figure.

But it is the same as other Sennheiser condenser mics. - it's a back-electret capsule and the electret material is on the backplate and not on the diaphragm - so the diaphragm is the same thickness as a normal AF condenser.

It's front-electrets that have the thick diaphragm.
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