I found a STR-DN1000 without a remote - is it possible to set these up without remote at all? It has an 'input selector' button on the front panel. Will this be able to handle audio from a smart TV which has an HDMI ARC port?
Also , iiuc the thing you need to get right with speakers is the impedance which in the case of the STR-KS370 is expected to be 3ohms, which itself is kind of idiosyncratic no ? So is that what you meant by 'receiver dedicated to speaker set'?
Sorry for the cluelessness, its a bit of a maze in here
I would make sure to keep things slow on your end. Go ahead and learn a bit more about how all of this stuff works together.
I think you get the idea that you want to look for a traditional AV receiver with 5-way binding posts for the outputs and a RCA jack for the subwoofer connection.
Be aware that the listed 'OUTPUT' will typically carry the letters (ARC), often in parenthesis, next to the HDMI output to show that it can handle audio return channel (ARC). If it doesn't include those three letters, you would need to refer to the manual to see if the AV receiver is ARC compliant. Even then, I would often just use the optical audio output connection from the TV to the receiver, which would typically work fine.
If you don't have speakers, then take your time there... You seem to indicate that you do have speakers, but I'm not finding a 5.1 set for the HK TS-2 that you listed. Certainly not as a 5.1 set.
But, if you aren't driving things too hard, then I would expect many receivers to not be overburdened by a cheaper 3 ohm speaker set, and then give you some time to get some more standard 8 ohm speakers for the setup.