i dont know ,, i've just read reviews on my kenwood amp how this one guy had two powerful tens hooked up 2 it and it would always cut out after a couple min's of blasting the music,, then he hooked up a 2 ohm kicker square and it never overheated and never cut out,, i have no clue what's wrong with my shit,, i'll turn the gain down tomorrow see what happens .. and yeah it doesn't run at 1800 watts , that's just the max that i guarantee 'll never come outta that amp let alone any amp, lol,,, and it rms's at 900 watts and umm that's kind of a big lie 2,, i'd say it might rms at 600 or 500,, cuz my friends amp that maxes at 800 runs around 4 or 5 his subs sound about the same as mine just a tad bit quieter idk, lol. i might have it checked out again monday at a different place but 2 people at auto audio in palm harbor said everything was hooked up perfectand they messed with the gains and boost all that and it ended up sounding like 1 10 in my trunk u couldn't e vne barely hear it ,, so idk. could be that stinger has shitty 4 guage wire or some shit,lol,,, or maybe 4 guage wire is 2 big for a ground wire lol jk i have no clue and im fed up.. i'll just turn the gains down tomrrow and see what happens,, and funny how the 1700 watt mono block made my subs sound louder lol,,, but this new one has this bass boost remote that 's weird,,, u boost what frequency u wanna bass boost and it'll only sound loud if u boost 40 hertz,, i have the main function of the amp running at 100 hz which is what i had the other amp running at and it sounded way louder who knows who cares really i just wish my amp never overheated and my subs could be pushed at anything loud lol