I wonder if anyone can help me please? I am looking for a set of external (4 Ohm?) crossovers for a pair of Linn Isobarik loudspeakers - preferably the single board per speaker that sits in the Linn speaker stand. The speakers are serial number 69** and were originally manufactured October '88 if that helps... The speakers do have the cavity in the base that I can only assume would take a smaller crossover...I already have a pair of the Wilmslow Audio (actually two boards per speaker) and another pair (again 2 boards per speaker) that are marked Linn Scotland but these look suspiciously like the earlier DMS type crossover that were located inside the cabinet proper - although I cannot be certain. Anyone have (or know of) a pair of the external crossover boards for my 'Briks please? Thanks & regards, -=Glyn=-