Electrical System Short because of AMP or Subs?

[Biker 10+ year member]

I just installed a new MB Quart 1500.1 Amp to my two RE SE 10" Subs. I have them connected to 1 Ohm. I set the amp for 31.6 volts. About 1000 watts. Speakers are rated 600 Each RMS. At about 3/4 output 27 volts the system shorts my electrical system out and the head unit restarts. NOTE: Its not the battery. New Optima Yellow top. Never goes below 13.8 volts.

Any idea? Bad amp? Bad speaker(s)?

Any help would be greatly appreciated.

Biker

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[DarkScorpion 10+ year member]

Check your grounds, check connections behind the headunit.

Off topic, but do you mind taking pictures of your set-up? I have a 2008 Altima too and I get an idea as to how much space a 2.5cu.ft. box takes up.