ASTRON RS-20S Linear AC-DC Power Supply 13.8VDC 20A Max 16A Speaker Vtg

  

The ASTRON RS-20S Speaker Rare Power Supply is a powerful 5 amp, 115VAC power supply designed to provide a maximum power output of 500 watts. This power supply is suitable for use with a variety of electronic devices, featuring a maximum input current of 20 amps.

The red light in the power switch must be burnt out but i can hear it power on. That is the extent of my testing.