Box speakers with multiple drivers create a slew of problems: cohesive sound across the drivers, degradation in sound quality from cheap connectors and crossovers, uncontrolled sound waves bouncing around inside the cabinet, and a waste of money on cabinet design and manufacture. Get a world-class single full-range driver for the cost of an entry level box speaker. You can even get excelllent quality sound from a $400 set of 15" Lii drivers. Or use an 8" driver with a good sub for the lowest frequencies; it's the right tool for the job. Life is as hard as you make it.
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 ?