I have just recently began to learn more about the mono/stereo issue, and read some about mono mixing. Seem important for listening in cars, the night clubs or radios and other places. 

I want to check my mono/stereo settings to make sure that it will work in mono as well. How do I do this in Sonar X2 Producer?
I have downloaded Voxengo MSED plugin, bud don't really know how to use it yet.

Thankful for any help.

There is a mono/stereo interleave button on the masterbus strip

I am not really sure which one you mean?

Perhaps I was a bit unclear. Maybe I am talking about Phase errors? Not really sure what you call it... I guess that you mean the two Mute buttons and a locker?? Do I switch one of the Mute buttons on, and I hear Mono, I got that:) How to look for phase problems? I still want to hear great audio both in mono and stereo. Im sorry for not being able to explain this correctly. 

Really feel like a extremely stupid person right now,.... but that's o;) 

ErikDeluxe


I am not really sure which one you mean?

I guess that you mean the two Mute buttons and a locker?? Do I switch one of the Mute buttons on, and I should still hear audio in both monitors/speakers?

Really feel like a extremely stupid person right now,.... but that's o;) 

Not stupid at all.
 
It's the little button underneath the mute button.  Little dot in middle with ever increasing lines radiating outwards.

Well, I did find that. I firstly looked at the Main Master (which don't have them;)

To continue with my "stupid" questions...
It's a Interleave button for all buses, but not for the actual tracks or instruments. How come? I don't understand how this works, so would be thankful for a short explanation:)

Thanks 

Look here: There is an interleave button for tracks and busses, all highlighted in blue but in slightly different positions

Insert the Channel Tools plug-in in the Master Bus/Fader.
Make it the last plug-in in your chain 
Set the L/R pan settings to the center.
Activate it when you want to hear your mix in mono.
You will get a more accurate mono output than using the interleave button