I got my 1st speaker today and replaced a radio shack pa 115 speaker with the M80 and put on some different CDs including Beethoven, Bela Fleck, Crosby Stills and Nash and finally Donald Fagen - Morph The Cat. I am really happy, it sounds awesome. I was afraid I would miss the bass from the 15 in the pa speaker and the M80 does just as much if not more plus bringing all the mids and highs that were missing. I am amping with an Outlaw M2200 for each main. I could really hear the Tony Rice guitar parts on the Bela Bluegrass Sessions album that were missing before. And the heavy bass on Morph The Cat sounded really fat.