We inherited a system a few years back from a good friend who died from cancer. He purchased it as a gift to himself while he was in hospice care, then left it to us since we were such movie buffs.

The system (basically) consisted of:

G68D Controller
DSP7000's (x2)
MF-1 Projector
HD Digital Video Processor

We've used it in "stereo" mode as reinforcement for the video system, but have decided we are now going to expand the system for a full surround theater.

I purchased an "as-new" DSP5000C and a pair of DSP420's from an audio/video store that was upgrading their showroom (for one hell of a deal... let me tell you) and noticed something...

I'm digging through the manuals and notice there is a little hitch to this build:

The documentation says that I need a 511 S-patch box to connect 3 DSP speakers together.

So... with THIS particular controller, I only have 2 Meridian COMMS outputs... I'm guessing that I need to use 1 COMMS for the "front" array and the other COMMs to feed the "rear" array of speakers (through an AC11 box)?

As for the DSP420's... my understanding is I need an AC11 between the G68 and the speakers to convert everything going to them into CAT6 (RJ45) to feed the in-wall surrounds.

Are my assumptions correct?

I did a search for this and I'm afraid it comes up over 250 threads and most of them are for digital streaming.

Is there someplace here that we have more in-depth diagrams of how to connect all this together?

We love the system... and thankfully managed to keep it from getting flooded in the rains we had here in Texas last month. We had to rip out the carpet and baseboards in the living room due to water and had all the equipment up on coffee tables to keep it dry... and now seemed like the perfect time to wire this system in like it should be and finish it up.

Thanks in advance for any help/guidance offered... our nearest Meridian Professional "help" is over 4 hours away in Houston.

G68D, DSP7000's, DSP5000C (18 bit), DSP420's, MF-1 Projector, Sony XBR-65 4K