hi Larry: Considering that your KP-100S is (after swapping the stock woofers with heavier in weight yet better bass response woofers) now only 12 lbs lighter than the 200 watt KP-200S is, I'm beginning to wonder if the KP-200S might not have been a better ONE PA solution for your specific needs, satisfing both smaller & larger gig venues.

For my situation, I ONLY utilize the KP-100S for my small room (less than 40 people) acoustic jazz standards (no dancing) gig situations. Anything larger (+40 people) and which includes dancing requires MORE power output than the KP-100S can supply. For this I take the larger (300 watts x 2) EV SxA100 system.

Larry, though adding a subwoofer to your KP-100S will surely produce more bass, I'm concerned that the 100 watt KP-100S will still be 'underpowered' (mid-high frequencies) to produce the 'quality' sound volume needed to cover larger rooms. The fact that you need to turn up your KP-100S close to peak volume clearly demonstrates that the KP-100S doesn't delivery what's required for the size of the room. You should never have to turn up the volume up even close to peak (max) level as what this does is pushe the speakers to their limit which creates not just louder, but degraded sound quality (distortion).

btw: Based on your highly respected recommendation, I went ahead & ordered the Emminense OEM replacement woofers for my KP-100S, and looking forward to hearing the improved bass response that you reported.

Scott