I have an Outlaw 1050 with all six speaker channels connected and turned on and a sub connected to LFE. The source is an Apex 2500(yuck I know) DVD player connected via a digital coax output cable to the digital coax input on the 1050. Now as I mentioned above this set up works super for encoded DTS movies. However when I switch the sound encoding on the DVD to "Dolby Digital 5.1" the 1050 goes into PCM mode and decodes it in "Pro-Logic". I just went out and picked up a digital optical cable (toslik) which I am going to try in place of the digial coax cable. I don't know why it would make any differnce but it is the only other thing I could think of to try. Any other ideas are welcome. Thanks.