Hello, I was setting the gain on my amp with an oscilloscope and multimeter and the positive and negative speaker wires accidentally touched while I was playing a 0db 40 hz test tone. It caused a big spark and the amp went into protection mode.

​​​​i turned the car off and back on and the amp still works but now my voltage dips a little bit when the bass hits hard. I have a capacitor and the volts drop from 14.1v to about 13.8 when it hits hard. It used to stay at 14.0 most of the time but now it visibly dips when bass is hitting. My head unit also reset when I turned the car back on. The head unit is just sending RCA preamps to external amps, I don't use the head unit amp.

I drove around for 30 minutes with it turned up as loud as I play it, my system is about 2400 watts RMS. Amp stays cool, no burning smells. I'm just wondering what changed that the voltage is acting different. I am aware that it's completely normal for the voltage to dip and that my voltage is still pretty good overall but any ideas what changed and what caused my head unit to reset? My OBD2 didn't set off any new codes and car seems to be working like normal aside from the voltage dips.

Oh btw, the voltage meter on the cap dips, but the voltage meter in my OBD2 screen stays around 14.3 with system at full power. I'm pretty ocd about my system and I'm considering completely new wiring and getting a new amp because I've been wanting a jp23 v1.5 anyway and this is an excuse.

for clarity, this was my sub amp with the speaker outputs connected to an oscilloscope playing a 40hz 0dbfs test tone. I had the RCAs of my 4ch amp disconnected so there was no sound playing , no speakers were connected
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