It was in the store, but it was a custom box built to spec. It didn't sound clean by any means. It's true that you might not hear that from a sub in the trunk, and it may sound cleaner, but still. It's a good point though. Of course, it was also in contrast to some of the upper end diamond audio off of an old school phoenix gold (I'm not sure of the model #, but it had a complete board made from freaking gold connections and a clear cover), so it may be biased from the contrast.
I wanted that amp though.