Yes, my Treos are 4ohm DVC.

NoTLaDStyle tested the box -- ended up showing, what, 5ohms? BUT, they subs are louder with my Clif Designs 2ohm amp than they are with a bridged Kenwood 4ohm ampm which produced about 100watts more RMS that the Clif

I always thought two 4ohms (like a dual voice coil) wired together would give you 2ohms (therefore each output on my box would be 2ohms, which would mate to my 2ohm amp), but maybe I'm wrong?

Wow, I feel like a complete idiot now, lol!