I currently have a very highly modified Sumo Nine. It definately leans warm. Before mods, it was slightly warmer, but not as deeeeeep in the bass nor as smooth on top, but still very good. You can probably pick one up for $500. to $600. stock. There is also the Nine Plus, I have never compared it to a Nine, Sumo brought it out after Jim Bonjorno left, I hear that it still is a very nice piece.
Ohhh, there is a pure class a Coda on fleebay right now for $600.00... Steal, Good Listening, Tim