Scott ... maybe problem was that kn5000 you were using!(kidding )

While the KB100 is not the greatest sounding amp, it sure is a dependable, workhorse that sounds GOOD anyway. There will always be a better deal down the road, but that amp has enough bass to work as a sub in small to medium situations ! It's probably the piezo tweeter that some people dislike. They tend to be a little scratchy and directional.

As an investment ..... you will probably be able to sell that amp for $150 whenever you tire of it. Good luck!