I found Dj playing mp3 it sounds thin but when you use for keyboards I like the QSC k-8 very small and deliver a great sound most of the time I can't use the bass switch because it is too much bass .

I have heard that the bose are very good I have never used them.
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Genos, PSR S970, Fender Tele Amercian Deluxe Cherry sunburst , Cubase Pro 8 ,Yamaha A3M Acoustric ,Taylor 814, Ibenez Artcore Custom Tascam DP 32 Yamaha DXR 10, QSC K-12, K 12 Sub K 8 Sinn 945
2 Fender Expo line units .