I tried to buy this amp here, but it turned out to be back ordered. When I called to check on it, they told me it was no longer being produced. So I called Alpine, who told me that it definitely was still being built. They also said that this site is not an authorized dealer and that warranties for equipment bought here would not be honored. Anyway, I ended up buying the separate Alpine units for less money than this one costs. They do the same thing but occupy more space, so that's a consideration. Not sure what to think about OnlineCarStereo, though.