Behringer Studio M

Does what it says on the box but not sure why it only has the 3.5mm for inputs rather than outputs for A/B, I would love to be able to switch from speakers to headphone output easily (althougth that would require a separate volume for heaphones. another BIG problem is that that from 7.5 on the volume knob and under, the right speaker gets almost completely muted!

I've been using this controller for about 9 months now and I don't know how I've been doing all this time without it.
To me it's the perfect controller to be able to quickly switch between my computer and my guitar modeler (as sources) and between my studio monitors and my headset (output), by the push of a button.

Only small minus point: when adjusting the volume, the sound crackles a little at times while turning the knob. But when the knob is still, all is fine.