Originally Posted by SergeantYnot
I have a Pioneer Elite and am planning an upgrade next month to a 4520. I also have a friend that has a 5803 and wants to upgrade to a 4520 as well. Coming from a 5600 and 5803, can you provide your personal feedback of how you are liking the 4520 for sound quality?
As you can tell I’m a Denon freak. My critique of them is considered a constructive one.
The main reason I replaced my AVR-5803 with the 4520ci was to fix the OPPO-103 lip-sync problem which it did graciously.
With all my criticism I still consider the 4520ci the best in its category especially if you’re upgrading from the same level. I consider its sound more transparent then the 5803 but its pre amp section is less pure.
For my two main channels, I’ve always used a Yamaha MX-1 Amp (bi-amp) which matches the transparency of the 4520 even better and allows me to bi amp the center channel from the 4520’s two unused front mains.
My main problem with the 4520 is the hum I hear when I put my ear against it and the speakers hiss when at idle at max volume. I never had such problems with my old toroidal transformers Denon. And for the purest, you’ll find that the tuner and the internet radio do leak onto other input selections while at idle/max volume because they’re always active in the background even when you change input selection. Denon never fixed this problem, that’s why, in my early years, I replaced my first Denon AVR with an AVC-3030 to get rid of the built in active/ leaky tuner. I was forced to spend more money investing in an external Denon RVS FM tuner so I can turn it on and off as I pleased.
On a side note, I learned the hard way to avoid using the receiver’s internal amps to power my two front speakers. The Yamaha MX-1 (630 watts@ 2 ohms times 2) saved me a lot of money since I used to blow my pricy titanium tweeters on my good old 5 way JBL HP720 4ohms hungry but sweet speakers due to clipping no matter how powerful AVR might be.
Presently, I’m using Energy Veritas V2.4i Loudspeakers with the MX-1 and very happy with the set up.