(Yamaha A S2100)Marantz vs Denon?

Audio Technica ATH-M50x
Marantz SR- 7015
Marantz PM8006
Marantz CD-63 MKII KI SIGNATURE
Pro-Ject Pre-Box S2 Digital DAC
Rega P1
Dali Opticon 6Mk II
Dali Zensor 1
Dali Opticon Vokal
Dali Phantom -Atmos
Subwoofer XTZ 10.17EDGE
Bluray Sony UBP X800
Pantalla Lumene Capitol 200C
Proyector Epson TW7000
PS4 Pro
Samsung QE75-Q90R
Nvidia Shield PRO