Hello Gianni.

I use mixed Speakerlink/DIN/BNC at the moment, though with a 5.0 system. I wanted to modify as few cables as possible so I did this :-

861v4 DIN to BNC on 7200 Master.(modified M5 cable)
Cat5e 7200 Master to 7200 Slave. (tell the Slave it's on SpeakerLink)
BNC 7200 Slave to BNC 5200HC.
BNC 5200HC to BNC Right rear 5200.
BNC 5200 Right Rear to BNC Left Rear 5200.

Thus I only needed to modify the M5 cable and put a BNC plug on the end. Then BNC all the way around the other speakers. I got the BNC cables from Maplins.

Regards
Shaun

G65, DSP3200, DSP3300, MC200, HD621.