AudioSource 2 Channel Stereo Digital Amplifier, Extreme Power D Amplifier for Home Sound Systems

This is my second Audiosource amp being returned in less than 2 weeks. This amp stopped working with 12 v trigger after 1 week. AD3002 is a poorly designed product. Sound is good when it works. But design engineering has failed big time. My biggest issue was with the 12 v trigger, which only work if the unit is "powered on" first by pressing the power switch. If the unit looses main power, you have to "power on" again for the trigger work. Bad design, effectively unit does not enter standby when plugged in. I have no idea what the volume knob in the front does. It had no effect. Unit does get a bit warm. Over all not worth the price.