Channel Strip Input & Output Greyed Out

I am unable to assign an input or output track (they are greyed out) - I can only select 1 & 2


I've used Logic for years, but cannot for the life of me understand what's causing it.


The mixer is already selected in System Preferences and I am able to playback just fine (Core Audio is working).


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OBS Mac Pro (Early 2008), OS X El Capitan (10.11.6), Various toys

Posted on Nov 27, 2018 11:37 AM

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Posted on Nov 27, 2018 1:21 PM

According to the manual, which I'd highly recommend you to review, you have to activate USB RTN mode (by pressing the corresponding button) on Soundcraft's channels that you intend to use for multitrack recording into Logic.

8 replies

Nov 27, 2018 1:29 PM in response to Radarhus

Thanks for your reply :-)


I always have manuals close to hand and I’ve had this particular one open for a while, and yes, the USB RTN buttons are activated. Even if they weren’t, it wouldn’t affect what’s on-screen.


I’m trying all sorts of variables, and am certain the fix is just around the corner. Every fail is closer to the solution, haha!

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Channel Strip Input & Output Greyed Out

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