I disagree and mismatch bookshelf has worked for me.   L/R JBL Stage A 130,  Center is psb Imagine XC, 2  surround speakers are POLK S-15, Subwoofer is Klipsch R-100sw.  My area size is 10 X 12 with front listening/viewing distance at 7 feet.  The 2 surround tweeters are 22" above ear level and slightly behind my ears.  I watch a lot of DD movies and when I listen to streaming MP3 music, the AVR audio is switched to "Virtual"    Front speakers are 7 feet apart as are the surrounds.    Would my ears be that acute if all the speakers were same mfg matched?   You be the judge.  I am engulfed in SOUND all around.     The JBL and Polk have pretty similar specs and weight.    I matched all with similar specs, but the center channel being special.