Would it be possible to bypass the built in 120v power supply and power the amp using dc(battery). I assume it would be possible, but want to see if anyone else has done it. Using a Soundtown STPA-G500DSP
this post was submitted on 19 Nov 2023
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There are 2 x 3300uf 80v caps there. That tells me that it is a high voltage 70ish volts + & - power supply. There are probably other voltages there as well. Batteries are possible but not sensible. As others say a decent inverter or cheap car amp are probably a better option.