Yamaha 1840 vs 3072 vs used 3066

[Shanmugam]

I have 12x24living room with 120 inch projector. I am looking for HT setup. Currently using old Yamaha sound bar.
Tried my friends Sony HT IV300 but it was too boomy with no voice clarity like Yamaha.

I shortlisted for Yamaha 1840 but saw some used 3066 in OLX . Please advice me the difference between 3066 vs 3072

 

[manivas]

Difference between 3066 and 3072 is HDMI board and on screen display.

3066 can pass HDMI signals upto 4K 30Hz not sure about HDR

3072 can pass HDMI signals upto 4K 60Hz including HDR 10 & Dolby vision