Hello, I've been using Wayne's venerable early variant of the 4pi speaker for some years now. The Theater 4pi. Uses the Eminence Delta 15 woofer and the Eminence compression driver & horn. While no longer in the product line up any more, I'm sure it's representative of the over all voice of the Pi sound. That is... BIG, VOLUPTUOUS, VIBRANT AND REVEALING! I'd be glad give a listen for you, right here in K.C.