Zmanastronomy
Have you tried a pair of the Zu's yet? You can't bet the deal Zu offers for trying their speakers, remember you can buy the Omens cheaper from Music Direct in Chicago than from Zu and with the same return policy in place. The answer to your question...which speakers have I compared them to well I'm "Old School" I like the Klipsch Heresy's and La Scala's. Lately I've been using a Class A solid state amp, but I've also got a VTL ST85 that really sounds nice with the Zu's. As for a pre I usually use a Placette passive. By the way the room treatment looks pretty cool what exactly is that product, and was it easy to find?