Im just trying to find out if i'm uninformed or really missing a part. I received my brand new SAX-200.4D on Friday, May 20. Super excited, I pulled it from the box and upon giving the amp a good looking over, I found it was missing the black plastic switch for the High/Full/Low pass crossover for channels 1&2. Its been awhile since i was involved in car audio, but dont we still need these switches? I already tried talking to the authorized internet dealer, but i was told to talk to the manufacturer. So quick to take your money, but so useless when it comes to help. im just worried i threw a bunch of money out the door. any help would be appreciated.