In reply to:

... but no driver (in no car) is sitting right in the middle between his car's left and right speakers.



Apart from me in my Mclaren F1

(Maybe this is the answer.... we should have all bought units at clearance and bought F1s with the profits from our ebay sales.)
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MK2 smoked 32Gb S/n 090000949 MK2a Blue 20GB racked and out of sync