I purchased this sub-woofer to accompany two 10" pole mounted speakers for performances of a specific nature: I play in smaller venues, not usually larger that 150 seats. My audience is generally more "mature" and my musical selection runs covers from 50's and 60's rock through Classic with some country and Americana, some blues and "American Songbook." I also do occasional shows in Singer / Songwriter venues. I probably peak out at 150 watts rms and usually not more than 100 db. The Fishman added fullness to the low end, giving life to the kick and the bass. I am satisfied with the purchase.