301's had the 2 prong power cord and the 311's had the 3 prong. (from my experiences anyway)Are you guessing too?
There is normally a bar code tag on the back of the receiver and it will list the model # (DP311 or DP301).Okay guys, I have another question for you. Here we have two receivers. Which one is a 301 and which one is a 311? I put the pictures in a doc to hide the picture captions.
There is normally a bar code tag on the back of the receiver and it will list the model # (DP311 or DP301).
And the answer is:
Top picture is a 311
Bottom picture is a 301
prove it