Thanks Robert, I will double check everything again this weekend.

I will reflash/flash both speakers again and do as you suggest. I will also check the cable connections. I have checked the labels on both boards and they are the same.

Will revert. Cheers.

Meridian 568, 562 v2, DSP5500, 2X B&W PV1 & Velodyne Subs, Velodyne SMS1 Controller, Linn LP12/Ittok LVII/Hercules/Ortofon Cadenza/PS Audio phonostage, MiniDSP4X10, JRiver..