Amazon.com: JOYO Overdrive Distortion Pedal Amp Simulator,Joyo California Sound (Mesa Boogie) Pedal Demo - YouTube,NPD Joyo California Sound. Such a great sound and such a,Amazon.com: JOYO Overdrive Distortion Pedal Amp Simulator,Joyo California Sound demo - YouTube,Joyo California Sound Mesa Boogie amp sim pedal. Scratches etc. Works well.