AVS Forum Special Member
Join Date: Aug 2008
Location: Puget Sound, WA
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
I'm a bit confused by all the worry, discussion about using or not using some or all of the internal channels. With this unit you have but one power supply. This means to me, that if you use only, say 5 channels, you should get better dynamic range and better RMS with the channels you do choose to utilize.
Currently I have a 4810 and believe me, the "Free Assign" feature is far beyond cool. If I get the 4311 or AVR A100, I will miss free assign but since I will use 4 of the internal channels to power Heights and Rear Surrounds the internal amps need to be fired up and consuming power. Other than having a GUI based "Amp Off by channel" button, there isn't much practical use here. You still have one power supply, the amps still need to be on.
The debate about amp/receiver heat is well explained by Darin. I would not expect the new 4311 to be super cool running though. My reasoning is that Denon clearly is putting in some new amp technology that handles more difficult to drive speakers. To do this, Denon must be putting an amp in capable of higher current output. In general, higher current translates to more heat, or at least more heat at times. Onkyo's have been called out as being a touch more high current capable than most Denon's and have also had somewhat beefier power supplies. This adds weight to the Onkyo's...... But weight does not simply translate to quality. If weight was our design goal; manufactures would just add lead. If I want to totally shut down the amps, I need 3 more external powered channels. That's a lot of external power and more than my rack can take.
Finally, I'm not sure why anyone would want to power all 7 main channels with the 4311 first. One problem the new Denon's have is that they have limiters that trigger when a multiple channel load is demanding high power output simultaneously. Not a huge real world problem for movies as really demanding action movies throw tons of content at your amp unevenly across all speakers. Also, as noted Heights rrand Rear Surrounds don't get near as much content. So, why not offload the critical fronts to a high current, high power external amplifier? Denon internal amplification is OK but, IMHO, not all that powerful, dynamic, or effortless. Again, let the Denon do the easy stuff and just spring for a single externals amp for the fronts.