Bit slack but finally installed one into DW and another into TOM.
Very easy install (even for a noob like me).
Usb instructions are a bit lite but went smoothly once i read up what to do.
Now to do the 2.1 stereo mods :)
A few quirky sounds but does give heaps greater control of bass, treble and split between cabinet speaker and backbox speakers :)
Dw has flipper fidelity kit which adds to the impact imho.