ZU OMEN speakers 12ohms??

Although effective power will be lower into a 12 ohm load compared to 8 ohm or lower as is typical with most speakers these days, the Zus are high efficiency speakers, meaning they go louder with fewer watts, and are designed to present an easy load (12 ohm) for most any amp to drive compared to most modern speakers with impedances of 8ohms or lower.

They should work very well with most any low to moderate power amp, including 100w SS, but be a particularly good match to the 35 w/ch tube amp.

The thing I like about the Zus on paper (having never actually heard them), in addition to their high efficiency, easy load, and supposed ability to go loud well, is that they use a single wide range driver for most of the sound, supplemented by a tweeter that crosses over relatively high compared to many designs, at 10Khz or so as I understand it. That is one of the attributes of the OHM Walsh speakers that endear them to me (they crossover at 8khz or so I believe), so the Zu's are a design that I would really like to hear some day.