There is no comparison between the BA330 and the Bose S1. The BA330 is just 33-watts peak power, 4.2-watts RMS, according to their spec sheet. I was not able to find the power draw specs on the Bose system, but I will in the next few hours and post it. I tried the BA330 with my PSR-S950 and it was horrible to say the least. I know that Fran will tell you that it is the best thing since sliced bread because it made by Roland, but on this I will disagree with him till the cows come home.

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)