I ordered a set of 10 inch Rockfords installed in a sub box to fit my TJ. UPS dropped the ball by delivering it with a small gash in the sub box. I knew it had happened during delivery, because the box it was delivered in had the same marking of a hole where the sub box was damaged. (Not HiFi's Fault). Got the box installed hook up the amp and tuned it in. All I can say is WOW. This setup makes all the difference in the world to the sound and feel of my music in the TJ. These guys delivered exactly what I was expecting and some. I will definitely be dealing with these guys again and would recommend then to anyone. Seems like these folks has pretty good reviews on Amazon too. Big Shout Out To HiFiSound Connection... Thanks, You Guys Did Great!