Weight is often directly related to the power supply transformer and other power supply components.
The typical mass-market receivers, even the more expensive ones, typically have a power supply which can only supply 500-600 watts total, which means that peak levels of 50 or 60 watts per channel can cause distortion to be excessive. One Anthem receiver that costs $3000 was only able to put out less than 40 watts per channel when tested; a good reason to avoid Anthem like the plague...lol.
The Cambridge Audio 650R has a power supply that is rated for 1400 WATTS, and is rated to supply 100 watts per channel with all 7 channels driven! No other receiver I know of has anything close to that. It has amazingly good sound quality.
That is one reason why it is the best-sounding receiver on the market, which Home Theater magazine affirmed when they reviewed it.
Edited by commsysman - 6/14/12 at 6:31am
Originally Posted by MCF34
Thanks guys for the responses. Sorry I have not got back to you all sooner. I set the HK up manually - I did try the EZ SET/EQ when I got the HK receiver and allowed it to adjust gains and speaker distances. I have physically measured distances from MLP to each speaker and my measurements are close to the EZSET/EQ. I have also confirmed the gain of the five channels are equal using a Rat Shack SPL sitting in MLP and using HK test tunes. All channels are within a dB of each other. Using the SPL from Rat Shack channel gains with HK are +1 (left channel), -1 (center channel), 0 (right channel) , +1 (SR) and +1(SL). I don't use EZSET/EQ anymore. I just set it up manually as most do with a six year old receiver using a SPL meter.
I messed with the 2312CI continuously for three weeks and ran 8 points for Audyssey many times (tripod mounted, pointing at ceiling, position 1 at MLP not anywhere near a wall or seat back, and all 8 points within 2-3' of the MLP seat). I could never really enjoy a movie or broadcast unless I pushed the master volume up to about -10 to -5dB which is just WAY too loud for normal listening. The sound with the Denon always sounded 'muffled' and the dialogue was always a struggle for me to hear. This past Saturday morning (after messing with Denon all night Friday night and attempting to watch movies) I disconnected the Denon and hooked the HK back up and set channel distances and gains manually using SPL meter and instantly liked the crisp clean sound with the HK AVR 635 better. Since I was running out of 30 day return window I sent the Denon 2312CI back and am now holding off to see how the Onkyo 818 pans out or maybe one of Onkyo top line receivers to be released in the next couple months.
One thing I noticed is the HK weighs over 40lbs. The Denon weighs 24lbs. Not sure if weight is directly related to quality with these receivers, but the HK is substantially beefier, similar to the Onkyo 818.