Amp recomendations for WATT/puppy v6.


Hi i recently placed a deposit on some Wilson Audio WATT/puppy v6's. The seller has been using Nuforce REf9 v2SE power amps and i think its a matching P9 pre. Does anyone have experience with this combination? If you had the Wilsons what set up would you use?
Kind regards,
Joe.
yamaha_man