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CCM41 + OSIX + HMa = hiss?


claus

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Hi Group,
I'm having issues with my Schoeps CCM41 - Cinela OSIX - Lectro HMa setup. It produces an unusable hiss.
Already tried disconnecting ground from shell - no difference.

Placing a short XLR cable between OSIX and HMa cures the problem, as well as using a Lemo-XLR cable from CCM41 to HMa directly.
The HMa works fine with my CMIT - Rycote WSK4 setup.

 

Has anyone encountered this problem before?

Thanks and best regards,
claus

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Dear Claus,

your issues are now well known. The CCM is  known to be RF sensitive under certain conditions. In accordance with Schoeps (with their design) we now provide our Minix suspensions (OSIX CCM doesn't exist anymore) with an RF filter which works well with the Lectro and other TXs. If you feel to do it "at home", we can send you the choke that you'll have to solder in the XLR.

Please let me know !

P.Chenevez

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  • 2 weeks later...

Is this

8 hours ago, Matthias Richter said:

I have installed that little choke in my CCM-Osix and can confirm that now the hiss is gone (using Zaxcom ZMT48V)!

Small and effective solution. Great customer support indeed! Thanks Philippe!

 

btw: was using a Neutrik EMC already. No help. Now it´s both.

 

 

Is this choke available to source somewhere ?

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  • 2 months later...
  • 1 month later...

I have contacted P.Chenevez of Cinela , And he teaches me about some useful stuffs  about this.

i got 2 Instrument mics ,schertler DYN Gp48  and all cp411pp which have such RF hiss.

But in my case , RF noise is because the mic is RF sensitive rather than in cable ,So any inline solution would be pretty useless on that . 
Just for others information ,Cheers.

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