Let's check a couple of things re: the subwoofer :
1. Make sure the cable is going from "Sub Out" or "Subwoofer Out" on the receiver to "Line In" on the sub. If you are connected to "Line Out" it isn't going to work. You are getting a green power light so this is probably OK but check anyways.
2. Make sure the crossover is set all the way up, ie 120 Hz. You're not actually using the crossover in the sub; turning it to the highest frequency makes sure it won't filter out any frequencies.
3. Look in the speaker setup menu on your receiver and make sure all the speakers are set to "small". This will take the bass content from each channel and route it to the subwoofer, along with the "LFE track" or bass sound effects on the .1 channel. If your speakers are set to "large" then the sub will only get bass from the LFE track, which isn't always active on many DVDs.
4. Adjust the sub volume control on the back to maybe a quarter of the way up; play a DVD with 5.1 sound (an action film, no chick flicks
) and turn up the sub volume until you hear something...
