I have an Arcam avr200 receiver and a Cambridge Audio Azur 540D DVD player. The C.A. DVD player is renowned for it's nice audio quality, but I've always used the Arcam as the center using its dacs whenever possible hence nothing but digital connections whenever possible, DVD audio notwithstanding. On the Arcam I have all speakers set to Small for bass management. Arcam doesn't print their crossover spec in the manual and my emails to Arcam have been frustratingly ignored, I've asked what the actual crossover is set to. Well no matter, my sub is set to the input freq setting (where it lets the receiver dictate what the crossover should be). The Cambridge doesn't publish crossover specs either but I read on a message board (an English board so I suspect it's authentic) one of the designers of the DVD player said the small speaker crossover on the player is 80hz, which is a nice industry average. Yesterday I took my chronicles of Riddick DVD (I don't recommend the movie really unless you like mindless action with cheesy dialogue and don't mind gobs of second rate CGI, which I do by the way) and experimented with the Arcam's 5.1 input, letting the CA handle the dac responsibilities. Well... I was blown away. The receiver was still set to small speakers all the way around, I didn't mess with this setting because I suspect that using the external source (5.1 input) you bypass the receiver's bass management, I believe my suspicion is correct. I set the DVD player to small speakers all the way ‘round for the experiment (normally I leave the DVD player on large and let Mr. Receiver handle bass management duties). The dialogue was crisp and clear, not the least bit muted which often plagues soundtracks. Everything else was amazingly “pure”, the bass was tight and not the least bit boomy. In fact bass seemed thin from what I was used to but eventually my ears got used to it and when the soundtrack offered lots of bass it was up to the task and it seemed right after all. All in all I felt like my system 'woke up' from a sort of nap the difference was quite noticeable, and I am always suspicious of so called "differences" in sound quality, I seldom imagine them. Switching back to the Arcam's DACs (not bothering to take my CA out of the small speaker setting and switching to digital connection to the receiver) I instantly noticed TONS more bass, very boomy, perhaps annoying from what my ears had grown accustomed to. Dialogue had that thinness problem associated with some soundtracks where normally I'd boost my center channel. When action and fight scenes occurred the soundtrack was thin in comparison to when I was just using the DVD players analogue connections. It was almost like a slice of the frequencies (perhaps due to the bad "double" bass management I had going on) were muted, or maybe even cut right out. Low-mid range loud noises like that of an axe hitting a stone wall didn't give the impact it had with analog connections. I’m having difficulty drawing a conclusion. I feel the receiver and DVD player should have very similar quality dacs, perhaps I am very wrong about this and the Cambridge Audio unit has very good quality dacs and that is what I'm hearing. Perhaps the Arcam receiver is also really good at the external source setting and doesn't try to convert back to digital and re-convert back to analogue (which many receivers do for their external source setting) essentially letting my DVD player operate as a pre-amp. OR, the other conclusion I could draw is perhaps not having set the DVD player's bass management settings back to large speakers literally caused a freq slice around the 100hz range to be filtered out... so I might not have been getting the full signal and therefore this might not have been a good representation of the Arcam's ability to process the digital input from the DVD player. I suspect a bit of both. Even if the latter is the case using the Cambridge Audio DVD player's analogue outputs to the Arcam's external (5.1) input setting gave me some amazing results. It seemed that I did without some of the bass the Arcam's dacs usually provide. Perhaps this is because the Small speaker setting is set to a higher frequency on the DVD player. If you have a good sub you'll be surprised how much MORE bass you get when you turn your receiver's "small" speaker setting on for ALL your speakers including the fronts. I used to be one of those heretics that set my fronts to Large reasoning that it could handle lower frequencies. It can, but just not to the volumes the sub can. I'm open to any theories about what might be going on and invite anyone else to experiment as I had. It sure is a fun hobby... and everyone's ‘gotta have a hobby, right?