Having as much experience with Zu products and probably more than anybody posting here, it is unrealistic for any Zu speaker to perform optimally with a flea power SET/PSET amp be it 45, 50, PX-25, or 2A3.
Every Zu speaker, including models with a self contained subwoofer system, requires at least 15WPC; some need more.
No question they can be driven with single digit power but nowhere near their full capability.
IMO
YMMV
Dealer disclaimer
Every Zu speaker, including models with a self contained subwoofer system, requires at least 15WPC; some need more.
No question they can be driven with single digit power but nowhere near their full capability.
IMO
YMMV
Dealer disclaimer

