Cheapest class D amp?


I have a neighbor with a 4 ohm speaker. He is tired of bland boring sound. His budget is slim. Please tell me what class D amps you have tried, and how they sounded. Thanks.
muralman1
No kidding? Now, that is cheap. I'll look it up. His amp is some old sluggo solid state. Class D amps are always lively.
Post removed 
Tvad, have you ever heard the Rowland 201, or Nuforce? These two amps are way out of range for my friend, but they are what I am getting at. The Rowland is essentially an ICE module in a pretty box. There must be ordinary boxed ICE amps for a lot less out there. The amp he is using is underpowered, and thus lifeless.
Post removed