Has anyone heard anything about the Dayton Quatro 10" Sub. I need a sub for music only, so low end extension isnt necessary. I want lots of punchy midbass, even though most of you guys dont really recommend it. (Im still a teen and love the kick.) I plan on building 2 subs each with 2 quatro 10s in them. They will act as stands for my gr-research av2s. I plan on double tuning them. Ill have 2 ports, with both opened tuned to 35hz, and one opened to 25hz. They will be appox. 70 liters in volume. Does this sound good. I figure i should get more output then 2 shivas with 250w and itll cost about the same. They seem to be fairly efficient. Does this sound good?