I ordered a power acoustik LT1920 amp off of ebay from an authorized dealer, i bridged it to 2 dual 4 ohm subs at a 4 ohm load, after 3 mins of play the - terminal on the right channel went bad. I then hooked both subs up to the left channel and the left channel also went bad after two days.
The amp turns on and has no red protection light, ne body got an idea of whats wrong?