Denon AVR-S660H - volume control chip?

[Music1969]

Hi Denon guru @peng

Does the Denon AVR-S660H use the same analogue volume control IC/chip as the higher end Denons?

Thanks in advance

 

[Music1969]

Some googling from service manuals, I see the S650H uses same as 4700H so I assume S660H and S670H will use the same

This NJU72343V:

https://docs.rs-online.com/66bf/A700000008877907.pdf

 

[peng]

Hi Denon guru @peng

Does the Denon AVR-S660H use the same analogue volume control IC/chip as the higher end Denons?

Thanks in advance

I see that you answered your own question. Keep in mind that while it would seem logically to believe that if you use external amps, they should perform basically about as good as the higher end models, assuming they use the same DAC ICs as well, it should also be obvious that the wiring layouts, power supplies, grounding and shielding schemes matter too, though in terms of audibly different results, I don't expect them to be too different, may be +/- a few dB on the test bench.

 

[Music1969]

I see that you answered your own question. Keep in mind that while it would seem logically to believe that if you use external amps, they should perform basically about as good as the higher end models, assuming they use the same DAC ICs as well, it should also be obvious that the wiring layouts, power supplies, grounding and shielding schemes matter too, though in terms of audibly different results, I don't expect them to be too different, may be +/- a few dB on the test bench.

Thanks. I won't be using external amps.

I will be running AVR-S660H in Pure Direct Mode. I like this mode in Denons for their flat frequency response well above our hearing (to over 80kHz)

All while the volume control remains analogue domain with this volume IC, with perfect channel balance