This guy is nothing if not ambitious.  Here is his open baffle line array with removable, adjustable grill/baffle.  Although there are a few problems with the design,  I like the way he thinks! 


and 

Although, the piano hinge may resonate, I really like his thinking in creating an adjustable baffle.  Even his cabinetry is done well.  The guts are the Madisound $3 Foster woofers and the GR-Research T-6 tweeter.