Hello eveyone. I have just been given (!) some amazing Mark 1 Pentas, they are Mark 1 I think because the connectors on the bottom are NOT the beolink 7-pin, but the four-pin, plus srung loaded holes. I have a Beovision 7 with the Beolab 7-1 active underneath. PLEASE would anyone be able to tell me how the Pentas work - and most importantly, how / if