Ah, OK. Let me test the new unit so that I have that information to communicate with them as well.
H Amirm-
I've had my 4700H for 7 days now. During my internal / external Pre-amp Mode testing. The internal amp did not perform as well as the 6700H beginning w/ my SVS Ultra Towers in 2 channel. It was also all-around warmer / hotter (unexpected) during pre-amp MODE. I believe due to the Op-panel ribbon cable? poor design, sitting across / over the heat sink. Holding heat dissipation down. Ribbon cable / bracket covering 25% of top of the heat sink, see below. In addition to a
non mono block type power amp design as in the 6700/8500.
In line w/ (X3700H ~ X4700H) ----------- (X6700H ~ X8500Ha) component configuration similarities.
Question- At what point does an audio signal get affected by heat ~ noise modulation - THD?
I know as it relates to power, molecules vibrate as heat increases. In large system environments, high heat is detrimental. Resulting in system crashes or unexplained errors . Have you made measurements while a system is at or entering critical a heat state? 170-210 degrees. I'm not an audio engineer but have a great understand as it related to signal modulation. Your input / response would be greatly appropriated.
At this point, I know for a fact the X6700H is the more overall, ultimate performer here. But it sickens me to think, I may or may not have off-spec Caps in the Pre-amp stage. If you could please get additional information from your Denon contacts, I seriously will want to know. Denon's second, non-compliant response is unfair / unacceptable in my book. I need answers, I want to keep my 6700H but I'm running of time for a refund return. If you need my S/N, I will send it to you. This X6700H, the box was shipped Out / inside in pristine condition. Unlike the 4700H, as I previously commented, works like and looks like, it was dragged through jungle of Vietnam. Seriously!
I believe someone a while back on ASR reported an incident w/ the rear output posts all bent down? Wasn't that a 4700H?
In comparison w/ the 6700H component layout. I think it has better a more upscale design. From our back and forth discussion regarding heat. I ran the X4700H in Pre-Amp MODE, all amps off but continued to feel a hot area front right (as you stated, full power amps in pre-amp Mode, understood) Previously, I had no comparison when testing my 6700H. Except for what you were reporting. Well, I was baffled as to the less power 4700H being hotter then my 6700H. I played music and then after movies continuous. Mostly mid to high output w/ the 4700H, while in pre-amp MODE exterally w/ my Emotiva. I had my Infinity fans running full. I then swapped systems, cabled my 6700H. I played music high wattage then a couple of hours of 7.1 movie play. To my amazement, 6700H was running COOL, yes COOL! Again, I was baffled. I then turned off my Infinity fans about 1 hour into my 6700H test. Two hours later, in a closed cabinet w/ my Spectrum cable box w/heat sitting just above the 6700H. To my amazement, it was still running COOL, slightly warm w /out a the infinity fan on. This amazed me for several reasons as described, outstanding!
In conclusion- I believe the 6700H is hands down the all around better performer, cost vs performance. That said, I read multiple professional review's as it related to the 6700H. This system review was compared to the the X8500H (understandably) w/ Real sound performance, better internal components, h/w implementation and features vs cost X6700H @ $2,499 and X8500Ha? maybe $4,499? $2K difference w/ similar hardware implementation. If you can swing the cost, a no brainier. I believe, as I mentioned before. The cost savings from the 8500Ha, 6700H ~ Emotiva addition XPA-GEN3 -7 @ full powered amp has been my best buy, implementation. I am seriously impressed w/ the all around sound and performance. And to Include an overall cool running system which adds to my Best buy list!
In an earlier thread, I mentioned corks in the 4700H switching, front display freezing. And now, issues w/ HDMI pass through signal while system is off. No sound at times, had to turn on/off 4700. And or my TV would display 480 letter box resolution. Again, no way around it. Needed to turn the 4700 on/off. I'm not certain if this is related to a software glitch or a H/W issue. And can someone please chime in. Does anyone know if they're running the same software version on all X systems? Difference in versions code between the 6700H / 4700H?
X6700H above
X8500H above. Almost similar H/W component configuration mono block amp layout as the 6700H. The 6700H fraction of the cost win/ win.