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Message: <blockquote data-quote="Avian" data-source="post: 1059838" data-attributes="member: 19252">The way I understand it is that the functionality is comparable between separates and AVR's. The biggest difference is in the power amp section. There are multiple amps in an AVR, the biggest problem is to supply enough power. If you have only the processor, it has to only house a minor power supply and the switching components etc. Cramming 7+ amp circuits in there isn't easy, and even harder is to get the power supply to give them enough juice.As soon as you split them you get benefits :1. Future upgrades you should only have to replace your processor, the power amps cannot really get outdated as long as they work, which they should for many many years. Unless you run out of channels, in which case you can add more power amps.2. Having things separate makes it "easier" to improve quality, less interference between the power and processor side as it's in different chassis.3. You can have more power more easily as there is lots of room in the power amp for a big transformer.There may be more, but those are the major ones I can think of now.Just be VERY careful of the power ratings. The most manufacturers these days will rate an AVR @ 150w/ch, and you may think, well that's more than enough, what's the point of separates? But look at HOW it's rated. If it's 1 or 2 channels driven at 1% THD at 1kHz, it's terrible, and probably more like 30w RMS per channel if 5+ channels driven at 0.1% THD at 20Hz-20kHz, which is the spec you want. At least 2 channels driven at 20Hz-20kHz at 0.5% or less THD.So if you need lots of power, an AVR will probably struggle to suffice.</blockquote>

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