Hi Jim. Do not if this will help much as I have no experience with either of your speaker choices, however I've been running the SPM6000 mono's with the B&W sig 800. The sound is sweet and not at all solid statish(in an accoustically disasterous room) and we all know how revealing the B&W is. All I read prior to buying Chord suggested that the way to get the most out of the Chord is to pair their amp and pre together and in fact this was born out when switching out the CPA4000 pre for the CAT pre. Good Luck.
