Goes into protection mode. Not sure if it’s just inadequate power supply or??

Selling for parts/repair

Model PCX700D

. 700W Class D Mono Block Amplifier

* RMS Power Range : 350 Watts

* Number Of Channels: 1

* Maximum Power: 700 Watts

* Low Frequency response: 10 Hz

* High Frequency Response: 35000 Hz

* Built In Crossovers: Yes

* Channel Separation: Yes