Jwalkup - thanks, thats exactly what i needed and they worked perfectly.

I am using RP6 - Sirroundsound - i thought the same thing about using another port for the RS232 but after calling BK tech support, they inform me that once you "link" the 2nd unit to the first - YOU MUST switch it all over to IR. And yes, that blows....since i had to re-do everything! This is a terrible oversight on their part, IMO.

Thanks guys -problem solved.