question about volume level when use kemper +power amp + kabinet together

  • hi folks ,i‘m trying to buy these two product(i alerady have an kemper stage ),and read a lot about in Q&A forum. i've also watched some reviews about sd 170 and some other solid stage power amps ,all i heard is "super loud" and "enough for gigs" kind of comments,so my questions here:

    1.how we tweak the volume knobs of each kemper stage and power amp to get a good volume for home use (no more 80~90db),or it's an fantasy(i watched ola's youtube channel ,the decibel meter goes nearly 100db after he roll the volume knob of sd 170 just a little bit)

    2.in this kind of low volume condition ,how does it compare to use a pair of studio moniter(generally 5 inch or 7 inch)

    look farward to your replies !:)