Summary: Fabulous amplifier! I use for keyboarding gigs, and am really pleased with the low end rich sound and clear high ends. I've auditioned many amplifiers over the years and pound for pound this one is a terrific performer! I recently splurged a bit and also bought a KC-350, which give a little extra oomph at venues. The 350 likes to stay in the car because it's a beast to carry but this one is very manageable.
Summary: Bought a KC 150 online to use with my 88 key Yamaha P-85 keyboard because I wasn't happy with the quality of sound out of the two small internal speakers on the keyboard. Used them amp in a couple of small gigs and decided that the speakers in the keyboard did a better job than the amp. Sold the amp for half of what I paid for it and felt guilty about taking the money. It's a very well made product with a good variety of inputs and controls.
Summary: This amp has it all multiple channels so you can play and sing over the amp with different mixes. Good power for small to medium size rooms Excellent for the Home. Some people may think this is over kill for a home unit but I disagree. Because you have the extra power you can actually play at acoustic piano and drum kit levels with out pushing or working the amp too hard, and you still get a beautiful clear sound.