I've got no idea how long he's worked there but this legend named Rob Flain in the UK told me exactly what he suspected the problem to be and sent me the *.pdf copy of the entire service manual so I could show the repair shop. With all that they had no problem finding the sub fault and getting it fixed!
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Rob saved me about $1000............cheers Rob and thanks TLS guy for making me try again to get in touch with the right people....
As for the wharfedale "clowns", what happened? is it IAG just running Wharfedale into the ground?