what power cord for Threshold amp?

BTW since I’m here it spent time in a cold trunk, is it ok to power up or would it cause a lot of strain? I planned to give it some time already, the hands seem slow tonight. 

Main question I will be needing another power cord. I thought about something more specific towards it to see what happens. Amp is a T50. I have $200 left so possibly used or home brewed is the direction I will be going.