These days, even entry-level A/V receivers are likely to come with some form of auto-setup system that promises to make crucial speaker-related adjustments by simply plugging in a microphone and ...
Level matching your speakers isn’t a topic that gets talked about much these days. With auto-calibration systems like Audyssey MultEQ, Yamaha’s YPAO, Anthem’s ARC, etc., it’s generally done for you.