@PENG - I respect your analytical views. But, I'm not trying to compare the Hegel amp section against the Denon amp section. I'm comparing the whole product. That's why it would not make sense to introduce an external DAC into the mix.
I could drag out REW and make exact measurements of the sonic differences and report those. It might be of some value in determining what the sonic differences show.
In my tests, the audio CD tracks played were identical. Both were feed with a Denon DCD-800NE.
If I setup the Denon 4700 in pure direct mode it sounds much worse. That is where I started. That is why I tried to optimize with Audyssey and DEQ. I wanted the best sound from the Denon. I also tried with Audyssey disabled. I tried everything except creating a custom EQ with the iPad.
The one thing no one mentioned was ECO mode. I have it set at AUTO.
Thank you for clarifying this.. My concern is that if not clarified, it could be taken out of context, as I have just done
, and it could just add to the hearsay/myth spread.. probably wouldn't matter as such claims are already widespread on the internet anyway..
What I am saying is the Hegel sounds superior to my ears even though it has a lower published power rating.
Example: Don't you think when stated like this, a lot of people would interpret as 60 W of Hegel could somehow be more than Denon's 100 W, and/or it is not the W, but something else, and what would that be then, if as you clarified you were not comparing the power amp sections?
If it is the DAC, okay that may be reason, though it would seem most posters on AH would not believe DAC at those levels would not make such kind of big difference.
Now you are clear that you were comparing the whole units, I would love to understand which part of the Hegel specs would be responsible for the big difference:
Hegel H90:
Frequency response: 5 Hz - 100 kHz
Signal-to-noise ratio: More than 100 dB
Crosstalk: Less than -100 dB
Distortion: Less than 0.01% @ 50 W/8 Ω/1 kHz
Intermodulation: Less than 0.01% (19 kHz + 20 kHz)
Damping factor: More than 2000 (main power output stage)
I can see the Hegel's crosstalk spec is far superior, but the Denon would actually be very comparable on other important areas such as THD+N, IMD, SNR etc.!!
Can't find any measurements of the H90 to compare but we can compare the H160's.
The Denon actually measured a little better. You can compare the harmonics too, using the FFTs, no clear winner there either.
Hegel Music Systems H160 integrated amplifier Measurements | Stereophile.com
An example comparison graph:
ASR review AVR-X4700H
To make it easy to compare the two different formats (% vs dB)
0.03%.................... -70.45 dB
0.05%................... -66 dB
0.01%................... -80 dB
0.005%................ -86 dB
0.003%................ -90.45%
On the subjective side, I am very familiar with Hegel's. Yes, even the smallest 60 W integrated amps sounded great in the demo room, but no, I definitely believe if compare it to any of the Denon X3000H and higher models, one would not be able to pass a DBT, or even SBT if analog is used from input to output using the same source and source player.
And before anyone pops up and make the point that THD+N is not a good correlation to sound quality, then let me be clear, we are not talking about higher levels such as 0.1%, but in the order of 0.05% to 0.001%.
Yes, there are other factors such as IMD that is more audible, but again we are talking about very low level there too, also low THD typically indicate low IMD as well. Regardless, even if somehow 0.05% could result in better sound than 0.03% due to the harmonic profile (no evidence seen so far between the two...), the difference would not be so big right?
I am a little too interested in your post because I happen to have done quite a bit of comparisons, with others in the room too using various preamp/amp/dac/avr/avp combinations and again, am very familiar of the fantastic Hegel amps. Not only that, I also own a pair of the fantastic BMRs, probably one of the best sounding speakers at the below $5,000 a pair price point imo.