I have the Forests in a medium sized room driven by PASS X-250, They chew up all of the 40 Class A watts pretty easily in that room. I would imagine they are a tough load for your tube amp unless you are generally a low level nearfield listener. I have been considering the Zu's for a new/future family room setup, but there's a lot of conflicting love/hate stuff if you search through forums. They seem to resell well, so if you bought used and decided you were in the hate camp, then you may not risk much. From all accounts they will be very different from the Totems, not lacking in volume but maybe in bass, you might end up getting a bigger amp instead....?
Totem Forest, Zu Soul, or Superfly
Anybody compare, or have experience with these? I really like my Forests, but feel a higher efficiency speaker should be in my world. My 15W. tube mono's actually have 16 ohm taps for the Souls and something about them and the company just appeals to me. Is it all hype, or are the Zu's something special?