When playing dvd's, on the tosh 210e, the volume is considerably lower than any other source. All sources are through a Yamaha 620 amp and are outputed through B&W 602s3, lcr60s3 & dm302 for rears. When I watch a dvd, at about -27db on the amp, there is a high pitched noise from the front left & right tweeters. If the amps volume got louder, so did the noise, but if you go below -32db the noise kind of disappears. I using a Vanden Hul Optocoupler optical cable between dvd player and amp. Is there a problem with any of the equipment, or is there a way to turn up the output volume on the dvd player, so to reduce the volume of the amp. Many Thanx for any replies.