You are surprised and I am shocked. All these years we've been telling each other all electronics are the same, as long as their power is rated equally and frequency response is flat then they all sound the same blah blah blah. That may be true for v2 speakers but not v4. V4 is so well designed that you can hear the difference between an electronics engineering team that designed for functionality only vs. functionality AND performance. And you don't need golden ears.

Axiom still says on all their product pages that all you need is an onk or yammie to drive their speakers. While that's true, I think their customers are better served being told that a heightened listening experience can only be achieved by allowing v4 to reach full potential through high fidelity, pristine electronics.

BTW, Anthem is a great choice for well-engineered gear. I've looked into their people and what they're doing and I am impressed.