Just a quick one really.

All the literature suggests I have to have a 511 patch box to hook the comms up coming from a 568.2mm.

However, I just can't get my head round why I can't go into the front left speaker as master, then slave to centre, slave again to front right, then slave again to rear right and then once more to rear left.

What am I missing??

No Darling, I've had it months!