Switched outputs on HTS3500 and B&K ref 30

Does anyone know of a way to hook up the switched outlets of a Monster HTS 3500 to the B&K reference 30?

You are supposed to connect a power cable from the extra outlet on the back of the pre/pro, but there is not one on the ref 30. I was wondering if anyone knew of way to do it using the control out #4 (as listed in the instruction manual) or any other way at all.

thanks,
John