It would have been helpful to have more information... which indicates that you didn't check out the READ ME FIRST BEFORE POSTING section.. on the front page of the forum...
Anyway...since the DRPX doesn't have a mid out and since you posted in the DRPA PX index... (see had to do WAY to much thinking on this already
Here is a thread in the FAQ section that might shed some light on the subject:
Oh and the answer is yes...viewtopic.php?f=60&t=2228
Here I discuss how the DRPA can provide tops, subs and a monitor feed...
Is that what you needed?