One feature that I've had on other stereos (Pioneer, Alpine) is a dedicated sub crossover, level control and pre-amp output. This allows me to control the entire system includeing the sub from the deck and still have front to rear fade. Your normally don't want to control the sub with the eq so if you have dedicated controls for it, it's very nice. Of course, there are ways to work around this but what the heck...this is the wish forum. Thanks!