Everytime I see this comment, it gives me a hint of someone trolling.
There's no way you can actually measure a sound. It's your ears that tell you what is good, & what isn't good.
Ok, I'll explain to you in brief with what one might experience on Denon recievers:
1) Even after succesful calibration, the sound is thin and lifeless, especially the center channel.
Flat on Denon is almost useless cause it'll just make your speakers bright and sting your ears.
L/R bypass improves bass response but robes away highs.
Reference is well, just reference same as flat but slightly laid back, with little to no bass, and by bass I'm talking about midbass and some mids.
2) There are lots of settings including Dynamic volume, Dynamic eq, offset etc. They just make the sound unatural or worse. It does improve the dialogue tho, but then you're not hearing the way the audio engineers intended for you to here.
Yamaha on the other hand has few and simple settings including dialogue volume, dialogue lift, ypao volume and drc. It's few setting compared to many on denon. Infact I just have to set to ypao volume and correct setting which could be straight or Dolby surround, neural x.
3) The audyssey multieq app works but won't magically make the sound of Denon reciever perfect. Cause an eq cannot compensate for the poor DAC and poor amp section on the reciever.
If your hardware is poor to begin with, no software will be able to fix it.
Yamaha not just has better DAC, but it weights more & therefore has a better amplifier, transformer.
You can actually compare the Denon X3700H and the Yamaha Aventage RX-A1080 on crutchfield for the weights.
bet that the Yamaha has beefier amp section looking at weights alone eventhough it's a 7.2 reciever.
If you're happy with it, well and good but to me it always sounded poor. No mid punch at all. Overall sound was just like a soundbar with no bass.
Yamaha actually put outs some amazing through my speaker. It's more dynamic with lots of midbass.
Some owners have experienced the same using their expensive denon. Look at the pic below.
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