hi,
thanks for your answer, I did link them, but as soon as I switch to "Speak.B" my volume input of the keyboard does not response any more, it's kind of blocked.
I also tried use a quadrophonic set-up in mac os x audio/midi set-up, so mac os x know I have four speakers... no luck.

Thanks

btw. using 10.6.8 and the latest totalmix 0.985

to use the control volume from the keyboard, you have to select in Sytem Audio Pref, the Fireface UC as the main output device...only after that you will be able to change the volume from the keyboard. at least it works for me like that.

It may be a limitation of Mac OS. With our mac mini at church (Dante not RME) we have to use the first stereo pair as the output for all system devices. No way to select any of the other outputs. In logic I can use the other outputs, but not for Itunes etc.

Maybe there is a work around, but I think that this 'feature' maybe the issue. How are you switching between the monitors? muting one pair/unmuting the other pair? or changing it in the control room output?

As MC said, I would have thought that just linking the faders, then using muting would still give you control over the primary outputs, and therefore the secondary as well.

Isaac P

This is a limitation of TM FX and the driver. Only Analog 1/2 can be controlled via system volume. So if you use that one as Main Out B the volume control will work when Speaker B is active - but not when Main is active.

We will check if we can improve this so that the above 'Link' tip would work.

I've a similar question. When the System I/O in my OSX 10.6.8 is linked to Babyface and the Main out in TotalMix is AN 1/2, every volume up or down increases or decreases the Gain between 5.5db and 7.5 db. It is strange and I don't understand what setting I must change. It happens every time the same numbers. For Ex: the numbers while increasing volume on my wireless mac keyboard go like this: -58.5, -50.5, -43.5, -37, -30.5, -24.5, -19, -13.5, -8.5. But if I use the knob on the Babyface it steps up between 2 to 4 db at each rotation step if it makes sense?

Signal chain: Mac OSX 10.6.8 -> RME Babyface Line Outs -> Focal Twin 6 Be speaker monitors.

Firmware: 204, Driver: 1.78, TotalMix: 0.99beta 3 Mac OSX (1) .. Though I had the same issue with the earlier 0.98 version too.

Any help? I don't understand the logic of this volume control on either Babyface or using Mac Keyboard.