I am loving my Sonos system and have used it for quite a while. Lately, I was cranking up the volume on my Denon 1909 receiver that's plugged into my ZP90 and noticed that I'm not really getting much bass (if any) from the subwoofer. The subwoofer is plugged into my receiver via an RCA cable, and RCA as well from the receiver to the ZP90 unit. I do hear deep low level frequencies from my surround speakers, but just no real deep bass from the subwoofer. I know the subwoofer is plugged in correctly cuz when I play games from my PS3, it registers the bass just fine. I initially thought maybe the song wasn't low enough, but when the same song is played on my ZP120, it doesn't have any issues with bass either as it is plugged directly into another subwoofer.
Do I have to use a digital cable to get the bass or something? Or perhaps is there something wrong with my setup? I did look at the Denon display and it did show the subwoofer being on, so I'm not sure what is going on. I hope I'm just missing a silly thing.
Any help is much appreciated... thanks!