I don't have such a system and I've never been in a "real recording studio". (I have been in a radio-station production studio that had some "big-impressive" JBL monitors and a very-small studio for recording voice-over at a TV station.) I do have HUGE home-built speakers and a pair of 15-inch subwoofers. Some people have more and/or bigger subwoofers... More than you'd find in a studio...
Of course you can buy studio monitors (many people here have them) and you can measure & treat your room and EQ (and many people here have done that). Or course you don't need "monitors" if you have good speakers and most "home studio monitors" aren't what the big boys use. Or at least, they don't use these small-inexpensive monitors as their main mixing/mastering monitors.
They never mention what kind of system to enjoy their production.
One "trick" they use is to check their mix/master on a variety of systems... Headphones, in their car, maybe on their home system, etc. Each engineer will have his own set of "downgraded" systems. And, they'll have a known-good reference recording the same genre to compare, and to "keep their ears calibrated".
Now... Many (perhaps most) listeners don't enjoy listening to music in a "dead" sound-absorbing room like a studio.