Donny, I know exactly what you're feeling. I even contacted Motion Sound and asked them why they didn't include the improved replacement woofers on their units, and they advised me that it was a price point issue which would have raised the price of the KP-100S beyond what they thought a customer would pay for that unit. I disagree and feel that the extra added expense of incorporating the improved woofers would have been a better decision on Motion Sound's part. Either way, now that I have spend the extra cash on the improved woofers, feel it was worth every extra penny I had to spend for the deeper bass improvement. I think the KP100-S is an idea small single unit stereo PA setup with impressive sound which belies it's very compact size. I'm just a little surprised that there are not more Synthzone members who have chosen to go the Motion Sound KP-100S route as well. - Scott