Theta Dreadnaught 1 vs Classe CAV-180

I demoed the Dreadnaught and Classe amps at the same store using the same speakers several years ago when looking for a amp and choose the Dreadnaught. The Classe sounded to bright and edgy to my ears. I don't know what Classe amp it was, however.
My understanding is that Classe has since changed their house sound since then.

I would definitely give the nod to the Dread on this one. Especially for music. More dynamic, amazing depth in soundstage, sweet extended treble and rock solid bass. The Classe is pretty good, but the Dread is just a whole new level.
Best wishes.

Thanks for the input fellas.

How about compared to the Parasound Halo amps?

I would still strongly recommend the Dread. The Parasound Halo is a powerhouse, but not nearly as musical to my ears. Your speakers will play loud, but the Dread will more than hold it's own in that dept too. I've just never heard each individual instrument stand out with a multi-channel amp as I have the Dread. There are some amps I've heard that can match in on width of soundstage, but very few on depth. Very clean from top to bottom. Just amazing for both music & movies.
Good luck on your choice.