I have not heard Naim gear with Zu speakers but I see no reason that they wouldn't sound very good. I do have experience with Zu speakers and a variety of amps.
I have a pair of OMEN MK.II with upgrades that I purchased directly from Zu Audio. I've listened to them using the various amps or integrated amps I have (both tube and SS). The speakers sound good regardless of the amp I use. My amplifiers are as follows in no special order: Plinius SA Reference Allnic T-1500 Conrad Johnson Classic Sixty SE Luxman 590 AXII Class D Audio SDS
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