I not had any experience with the Maui 5 system, however, having used Bose L1 systems for more than a decade, I can honestly say I have never been more satisfied with any sound system as much as the Bose L1 and L1 Compact. The clarity is unsurpassed, IMO, and the overall sound quality is absolutely superb from bottom to top. As for the price, I don't care what they cost - I just want to sound great to my audiences.
Gary