Sound quality is excellent - especially with the switched woofer. Volume is a bit anemic for a 100watt amp. I have played with a couple of Yorkville 100 watt amps with 10" woofers, and they deliver way more volume. The stereo sound is a good feature, especially since it gets rid of that phasing effect that is sometimes heard with Yamaha arrangers when they are played through a mono source.

For larger gigs, I have been using the Motion Sound with the Yamaha MS50s and I have had satisfactory results.

Making a living doing nursing and retirement homes, the KP-100S is suitable for over 95% of my gigs.

Beakybird