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Gear / Technical Help => Microphones & Setup => Topic started by: mjj on April 28, 2018, 04:54:44 PM

Title: Contact mics not working with CA 9200 Preamp?
Post by: mjj on April 28, 2018, 04:54:44 PM

Hi!

I have CA 9200 preamp and it works well with CA microphones, but when I connect my contact mics to this preamp, there is only noise, no real world sounds can be heard... When I connect my contact mics directly to Roland R-05, real world sounds can be heard, but they are very quiet. I thought CA 9200 preamp would make me get louder recordings from my contact mics...

It appears I don't get something... Is there something I don't know? Does CA 9200 work like battery box? My experiments showed that these contact mics I have don't work with simple 9V battery box too. Why is that?

What can be done?

I read somewhere about different impedances... May it be true?

Title: Re: Contact mics not working with CA 9200 Preamp?
Post by: beatkilla on April 28, 2018, 06:45:23 PM

Contact mics?????

Which mics exactly?

Title: Re: Contact mics not working with CA 9200 Preamp?
Post by: unidentified on April 28, 2018, 07:51:16 PM

https://en.m.wikipedia.org/wiki/Contact_microphone

Title: Re: Contact mics not working with CA 9200 Preamp?
Post by: if_then_else on April 29, 2018, 02:48:17 AM

http://www.musicofsound.co.nz/blog/the-first-rule-of-contact-mic-club