Try to trouble shoot the amplifier by doing these steps:
Step #1 - Unplug all cables by forst unhooking POWER, REMOTE then GROUND last)
Step #2 - Wait 10 minutes and plug back in by first GROUND, POWER, REMOTE.
Step #3 Make sure voltage is over 12.5V from battery
Step 4# Make sure RCA input voltage is not higher than 4.5 Volts
Step #5 - Make sure imedance is not under 1 OHM
If that does not work you can call the following repair centers to repair your amplifier. They are not affiliated with Massive Audio but they are authorized to repair our unit. Unfortunately we have discontinued our P Series amplifiers and we no longer have any parts or units to repair or replace them. If you have any further questions or further help please feel free to contact us at any time at 323-262-2262.
CORPUS CHRISTI, TX 78412
THE AMP DOCTOR
5003 N 40th STREET SUITE 104
TAMPA, FL 33610