Plenty of acoustic suspension designs produce far superior bass to most OBs IME. Though who am I to judge since I am no musician? Lol.
Open baffle speakers
Open baffle speakers design is the simplest , to get bass response similar to other design , like ported, the baffle size must be huge to avoid low frequency degradations . Tipical size the baffle width 10-20" got weak bass performance. I am wondering how open baffle speakers design became so popular ?