Unit worked for about a week and a half and the red LED of death came on. Sent it back for repair. The switching transistors failed. received back and installed. work for 20 minutes before filling the car full of smoke. Sent it back. Switching transistors failed again. Received it back and installed. worked for a day and a half and then filled the car full of smoke again. I am done with this unit. Will never buy another Lanzar amp.