CAD NDM 11 drum mic - condenser or dynamic?

[Gunny]

Our drummer asked me to check out his NDM11 mic. There's a constant hum and virtually no output.

I've rewired it (yep, I know the conventions for XLR and condenser mics) but just can't figure it out. I've also connected it as if it were a dynamic mic with a 2 conductor shielded cable with no luck.

It appears to me that whether it's condenser mic or not that it's kaput. Anyone able to confirm whether it's a condenser type or not? I'm betting that it is and that the primary element has failed.

Thanks

[Enzo]

Not sure what you mean by "XLR and condenser." That strikes me the same as knowing the difference between a 1/4" conector and a guitar jack.

The XLR connector is for a balanced output on pins 2 and 3, regardless of whether it is condenser or dynamic. A dynamic mic can be wired balanced - with an XLR - or unbalanced, usually with 1/4" for a full sized mic.

ANy chance your mic needs phantom power?

Of course someone may wire it up other ways for some purpose.

[Gunny]

I guess I combined a couple of things into one phrase. I meant I know how to wire an XLR male connector at the mic. I also know that for a balanced output the two conductors are soldered to pins 2 and 3, ground on pin 1.
I have a jig for phantom power and tried that with hook-up and still get constant hum and virtually no output.

I've known mics to use pin 2 as signal and pin 1 as ground for the unbalanced type of connection.

I was rather surprised to see next to nothing in the way of tech info from the company who makes this mic.

[km6xz]

I know nothing about this mic other than it sold in a kit with 2 ndm10 mics for overheard for about $300. The company does not even list it as a current or discontinued product. Easy way to determine if dynamic(betting it is) would be to bring a compass near it. Condenser mic should not influence the needle.

[Gunny]

Thanks km6xz, I'll check that out.

[Enzo]

That is a good trick, I like that.

I also looked at the CAD web site, but it couldn;t hurt to contact them and ask about the model, they may have data sheets and specs and such. What is on a web site is rarely the total of what a company has to offer.