I have used up all 6 inputs on the IRF-6. I have a least one piece of equipment, my subwoofer that I want to add to the IRF-6. The sub is not near the equipment rack that is why I cannot use one of the double emiters. My quesion is which deviced do I need to expand the ports? Can I use a Xantech expansion block or do I need a connecting block with another power supply? If I only need to add one IR maybe I can use a Y adapter. Specific recommendations would be appreciated. Thank you.

Go to :
[Link: rticorp.com]

Each IR port can support up to four emitters directly.
(More than four requires an amplified connecting block)

so use a double on 2 pieces of gear that are in the rack that leaves a single open to run over to your sub.

Thank you for the help. Somehow I have used all the ports. I could move a few emitters around but it might be easier to try a mini plug splitter since it is only $5 from Radio Shack. If that doesn't work I will add the amplified connecting box. I plan to add a emitter for my Lutron spacer system. I am running everything RF except for the Lutron.