Receiver: Yamaha rx-v663 Speaker-system: Dali Zensor 7 (front), Vokal (center) and 1 (back) with a Yamaha YST-SW215 subwoofer. PS3, Apple-tv as main sources, both connected with hdmi. I listen to music through airplay with a Spotify Premium account or with Wimp Hi-Fi. After having bought these components separately over the last few years and tried all I can think of when it comes to tweaking both placement and settings I have come to the conclusion that either I'm doing something completely wrong or there is something unsatisfactory with my set-up. The main problem I am having is the bass which I feel doesn't deliver as it should. With the Zensor 7 as front-speaker and an added subwoofer one would think that there should be more than plenty to deliver that extra "oumpfh" but I haven't heard that yet :-/ What I want is for the sub to fill out the sound from my main speakers and give my music a more immersive feel. With my current settings I'm very disappointed. Output from the subwoofer at settings recommended to complement my main speakers is barely audible at low and moderate volumes, only ramping up when my receiver’s volume is cranked to high levels. At ordinary listening volumes, where one doesn’t have to shout to carry on a conversation, it just doesn’t contribute much to what my main speakers produce. Those rare times when I have the house to myself and want to blast my music is when I get the most out of it but I’m not getting much day-to-day value from it (i listen to music almost constantly and watch a lot of movies in the week-ends). When watching movies, the problem is much the same: there is not enough punch in the bass and the sub isn't anywhere near delivering real good vibrations. I should probably also add that the settings in this receiver is a bit confusing, especially for someone like me who is not that good at understanding all the technical terms. This text is from the yamaha-faq that I can't find on the web anymore: Here is also something that I found relevant at one time but now just confuses me more (conversation from another forum): I don't know what I'm doing wrong, I have tried what feels like "everything" so maybe I just expected more than what was realistic and need to upgrade one of the components in my system? I'm leaning towards the latter and suspect the subwoofer or the receiver to be the main culprits, but I don't want to give up just yet. So please, is there anybody out there that can help me?