Im trying to find out why my punch p500-2 keeps going in protect mode?

I have exactly the same problem, try a different speaker wire from your sub terminal to your amp terminal, if no luck you may have a loose connection on the wires on your sub, due to vibrations etc they can sometimes come loose, but very rare. worth checking though. 1 loose connection can make the amp go into protection mode. If all of these are fine, start from the beginning, ( I have tried this and i think its my speaker wire shorted out) 1st dissconnect all wires from amp. Then connect ground first, then your live. then power up amp, it it works andd not in protect mode your earth and live are fine, then connect your remote, then test, then speaker wire , then test, that way you can rule out bad connections and find any fault.

If you disconnect your speakers and input and the problems remain it means you've blown your end-stage and the amp needs repair.

if the problem disappears when disconnecting the speakers you may want to check if the impedance of your speakers is within tolerance of the amp.

im not sure what is wrong but i do know if you keep it hooked to subs it will fry them because that happened to my friends jackhammer amp and 2 12" mtx jackhammers

Hi unbridge the subs and run them sterio your overloading the amp and its going into protection mode. if you have anymore questions about car audio feel free to ask me...

power it off, then on...check you're fuses. unplug the car battery and try again. good luck.

100 watts RMS x 2 at 4 ohms

200 watts RMS x 2 at 2 ohms

400 watts RMS x 1 at 4 ohms in bridged mode

stereo or bridged mono output

4-ohm stable in bridged mode

Tri-Way capable

requires 8-gauge power and ground leads — wiring and hardware not included with amplifier

50-250 Hz high-pass/low-pass (12 dB/octave) crossovers

wired remote included for fingertip control of Punch Bass (0-18 dB boost at 45 Hz)

MOSFET power supply and output devices

MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability

TOPAZ — noise-killing differential inputs that eliminate 80% of ground loop noise

Trans•ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality

NOMAD — advanced protection circuitry for "intelligent" shutdown protection

speaker- and preamp-level inputs

11-1/8"W x 2-3/8"H x 9-7/8"D

Wire your sub in bridged mode (4 ohm mono)
+ to + on amplifier
- to - on amplifier
(using bridging terminals)

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

My ? was answererd
im going to hook up a thicker ground wire and ground it to a better place.
my positive wire is as big as i could get and my RCA cables are the good ones
this is a great place yo get information. Thanks.

The amp is blown and need to be repaired.
You can contact Rockford direct to find a repair dealer.

yiur amplifaer is in protection mode you moust reset the amp

How about the speaker itself? This problem can be caused by a blown or defective speaker. If you disconnect the speaker wires from the amp, do you still get the protect light?