DEPENDS
The placement of your studio monitor speakers depends on the kind of studio monitor speakers you have and the room you listen to them with. In the old days, they use big speakers with big wattage. But that required expensive Acoustic treatment of the listening room for accuracy and ensuring the room will not influence the true sound. Now, engineers have opted to go the less expensive route. They made the speakers smaller with less wattage, but the influence of the room has less say on what you hear. But one caveat - you have to place them "near you". And voila - "near-field monitors" were born. The closer they are, the less sound reflections your hear from the room. Having said that, locate your monitors in order to hear as accurate sound as your monitors can belt out. Also, ensure you have a pair of true "Studio Near Field Monitor" as home stereo speakers are designed to make the music sound good, instead of "accurate" as the Near Field Monitor does.
__________________
"For God so love the world, that He gave His only begotten Son, that whosoever believeth in Him, shall not perish, but have everlasting life"