Comps cut out when subs hit at high volume

[UCF_Knight24 10+ year member]

So I've ran into another brick wall while trying to finish up my install. Whenever I play my system at or near full tilt, my components start to cut out when the subs hit. I pulled out my DMM to see if I was getting any voltage drops at the battery, but it was sitting at 14.6v with the truck idling. Anyone have any ideas what may be causing this?

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[bigaudiofanatic 10+ year member]

What amps are you running and what gauge wire?

 

[UCF_Knight24 10+ year member]

I have a Boss C600 amp and a Profile AP1040 amp with a run of 4ga going to each.

 

[UCF_Knight24 10+ year member]

I took the subs out this morning. Now the comps play fine at high volumes. If anyone has any suggestions that would be great. I'm going to try to fix this mess after class today.