I have a fairly new Lanzar Opti-Drive 2000d and there is a guy that has a used but in pretty good shape Saz1500 by sundown audio he is wanting to trade straight up, and the next install or build I am going to do is a 1 sub 1 amp setup. I have a Treo SSX 15.11 and the Optidrive 2000d so I figured it wouldn't even tickle that sub, but I don't know if the Sundown would hit the sub harder than the Lanzar??? It will be wired at .5 ohm so any suggestions will be appreciated! Thanks everyone!!!!