Ok so i learned how to get it working with traktor pro.. The tsi is fine - but you need to press the import button on the bottom of the controller manager, not just the add button (tsi can be added either way) then you need to change the in and out ports in the top left of the controller setup screen to vms4, not usb. This will enable the correct controls for traktor pro.
Sound qality is ok on mine at the moment, all i am unable to do is disable vinyl mode - the platters are quite sensitive so this will be an issue for gigs unless it can be solved!
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