Originally Posted by ianandamy
I have been a proud owner of a avr-4806 for many years still running like a champ, however I never upgraded it to pass 1080p which i am now finding disappointing, using a splitter around the amp to get 1080p, so I purchased a avr-4520ci at a great price. After looking into specs on the two deeper I am thinking I made a mistake and the amp section of this unit is not really a match for the avr-4806 amp section. I realize the preamp is much better but the unit weight and depth is much different when comparing.
I currently have an array of def tech speakers their top end stuff in 7.1 don't really plan to upgrade to 9.2 or anything. Should I keep the avr-4806 and use it as a pass thru power amp from the avr-4520ci or will I be happy with the amp section in my avr4520ci?
I never run my system over +7 on my avr-4806 and really only when we have guests over to show off, other then that it is used a few times a month tops.
Any answers to these questions would be great been out of the av game for a while as my business is taking all my time.
In comparing the two Denons, the 4806 is about 52 lbs, and the 4520 is 36. When I bought the 4520 that spec stood out for me as the Onkyo it replaced was 51 lbs, and in my book at the time, there is no substitute for pounds. But the 4520 bested the Onkyo TX SR876 in sound quality and was it's equal in power(to my surprise). The Onkyo, for all it's weight, could bench test 144 watts per channel with 5 channels driven. The 4520, as mentioned above, can do 121 watts. I can't find a bench test of the 4806, but even if it does it's rated power with 5 channels driven, the difference in performance will not be noticeable being less than 1 decibel of volume. But if you set up the newer Audyssey room correction, it will knock your socks off, it sure did mine!
You haven't mentioned what model of Def Techs you have, but in looking at models from the mid 2000's, they seem to be 8 ohm speakers, which is an easy load. If they were 6 or 4 ohms, it would be another story. What surprised me is your top volume setting of +7, even if to demo to friends. That's getting close to full volume. I'm wondering what setting you watch movies at, and how hot your 4608 would get. I'm asking because for those who have had warranty issues with the 4520, heat can be a concern. I hope it's not stuffed into a tight shelf with no active fans moving air.
But with that kind of volume, I'm wondering if you'd be happier by adding an external amp. Getting a 7 channel amp from Outlaw Audio or Emotiva would actually give you much more power with their 200 watt models, and at least they could handle the higher volumes better than any AVR. Just a thought.