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noise between ensemble interface and Ramsa mixer

 
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Kordorama
audio school graduate


Joined: 25 Sep 2009
Posts: 16
Location: Chicagogo

PostPosted: Fri Feb 05, 2016 9:59 pm    Post subject: noise between ensemble interface and Ramsa mixer Reply with quote

Hi all

I have a weird problem where I have noise between my mixer and my interface. when I isolate either one, the noise goes away. It sounds similar to when a cable is plugged into an amp without the instrument connected to the other side - the noise can be turned up or down depending on mixer gain.

ensemble 1/4" 1+2 outputs --> patchbay --> mixer inserts = noise
ensemble 1/4" 1+2 outputs ----------------->mixer xlr input = noise
ensemble 1/4" stereo headphone outputs--->mixer xlr input = noise

ensemble --------------------> speakers = no noise
iPhone/computer --------------> mixer = no noise

My gear:

-apogee ensemble firewire interface
-Ramsa 8716 mixer

the pin connections on the back panel of the ramsa read:

Ramsa Input Connection
no1: ground
no2: cold
no3: hot

So I'm confused why the computer doesn't make a noise, but the interface does. Also, could certain self-wired cables 'correct' the older pinouts of the Ramsa to play nice with the ensemble?

Anyone have any suggestions?

thanks!
matt
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Kordorama
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floid
re-cappin' neve


Joined: 03 Jan 2006
Posts: 741
Location: in exile

PostPosted: Fri Feb 05, 2016 11:03 pm    Post subject: Re: noise between ensemble interface and Ramsa mixer Reply with quote

Try making a cable with pin three hot on the ramsa end, pin two hot on the ensemble end, and see if that helps.
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Kordorama
audio school graduate


Joined: 25 Sep 2009
Posts: 16
Location: Chicagogo

PostPosted: Sat Feb 06, 2016 12:07 am    Post subject: Re: noise between ensemble interface and Ramsa mixer Reply with quote

thanks for your response. the noise went away when I used TRS -> XLR cable throughout the signal path, I guess i was using a TS cable somewhere even during troubleshooting. dumb move on my part.
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