I have the option of buying a Denon AVR-1803 (new), an AVR-2700 (new) or a Denon AVC-3800 (used) for about the same price. I am currently using analog outs from an HTPC to avoid using the digital processor of my current amp (a Pioneer).

I could do the same with the new one, which would make it less important to have DTS (which the 2700 and 3800 don't have) since I can use the 5.1 inputs. However, the AVC-3800 is old (around 1997). Is it really that good, or would I be better off with the new 1803 even though it is less powerful and probably made using cheaper components? It will drive 2 Dali 7A fronts (rather large 8 ohms), some smaller Dali surrounds and a KEF Reference 100 center.

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Will add an active sub later, and - if the 1803 is chosen - probably a surround-center to match the surround Dalis in use now. My main reason for changing out the Pioneer is poor stereo performance (CDs) and lack of warmth (if there is such a word).

Also, I need S-video switching, which the Pioneer cannot do. TIA, - Soren. I looked around a bit for info on the AVC-3800 and couldn't find anything. I'm not familiar enough with Denon's euro lineup to equate it to what was out here in the US at that time. Design of rectangular water tank nptel pdf. The AVR-2700 was out here in the US a few years back and I am familiar with Denon's current line.

If you believe that audio technology and sound quality moves forward at all (and I easily believe so for technology and to a point for sound quality), then there has to be improvements in the 1803 over the other 2 boxes. There have been at least 4 generations of newer models since the AVR-2700 was out. If the AVC-3800 is 6 years old, there has been a like amount of change for it too. So, IMO, the question is, does the fact that the 1803 is a lower model in the line mean that it wouldn't perform as well as the older models? My feeling is that since you are comparing to such old models, yes, the 1803 would be the preferred model.

The others are just too old. It has some of Denon's latest surround decoding chips, newer ADCs, newer DACs, better switching connectivity, auto surround mode memory, better control of subwoofer volume control and on and on. I haven't directly compared the amp section between the 1803 and it's bigger brothers but the 1803 is only about 3 pounds lighter than the 2803 (and more often than not, the weight of many receivers is somewhat related to the amp sections.) So it's amp section, while smaller than the bigger units in the line, is very close to the middle of the current lineup (the 2803.) And when you take into account the 2803 has 7 amps versus the 1803's 6 amps, this makes the weight factor even closer. As to your decision to use the DACs in your PC, if you go with the 1803, I would use it's DACs and surround decoding. It's going to offer so many more options over the PC.

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One example would be that whenever you listen to 2.0 DD, the 1803's Pro Logic II will blow away the sound you'd have with the other options you're considering. Another great feature is that the Denon's auto surround mode will always play digital signals the way you want without having to make settings changes each time you want to listen. Bottom line is that I wouldn't consider moving to a piece of gear 6 years old or 4 generations behind as money well spent. IMO, you'd be using a crutch and hurting your longer term chance at better sound quality. BTW, if your budget can stretch a bit more, the 2803 is worth the extra money. Take a look at this Denon US chart and compare the features.