Summary:
ran these amps for 06 season and never did it go into protect even with it being ran at .16 ohm but it did shut off due to low voltage

last time i remember i was dropping to 8.5 volts on a burp with a pair at .7 strapped off one battery.
Strength:
lots of power. makes the most power depending on rise at .25-.35 ohms in a small foot print
Weaknesses:
power hungry and touchy. mines had to have the sub sonic filter on for them to stay stable at any volume!