Summary: I am not a Bose hater. I have a few of their items. However I ordered both the Free Space 51s and the Definitive Technology AW6500. There is a stunning difference in performance between the two pairs of speakers. The Bose do provide a sound that seems to surround the listener. However the Def Tech's are amazing. The base is solid, not mushy and the fact that the Def Tech's have a midrange and a tweeter just blow the Bose away.
Summary: I bought these about 5 years ago and they worked OK for a few years. Turned on the amp this season and only had treble, no bass. I had installed these according to manufacturers suggestions...partially buried. I dug them out and dumped them over and water poured out. I left them out of the ground thinking they weren't getting proper drainage but they filled up again. I'm assuming the water damaged the inner workings. Needless to say, I had to buy new speakers.
Summary: Amazing speakers. Sound reproduction is fantastic and bass response is surprisingly excellent. Using a pair of these speakers to cover a yard area of 180 ft. by 125 ft. Buried them and hid them behind bushes. Clear, full sound throughout the yard from 'hidden' sources. Thank you Bose!
Summary: I AM A HUGE BOSE FAN AND THESE SPEAKERS DID NOT DISAPPOINT ! I LIKE MY MUSIC LOUD ! THE SOUND QUALITY IS AMAZING ... CRYSTAL CLEAR ... EASY INSTALL AND I PLAY EVERYTHING RIGHT FROM MY IPHONE !