Not if subs are rated for 2000 watts each.
Yes because the cap will store the power and give it that extra boost when need be but depending on the type of vehicle you have you might need a bigger battery
I have 2 q power 1500 watt subs and a 3500 watt proacoustic amp and it pushes it well although not enough so im sure you need more than 2000 watt to push 3 of them.
I recommend Two subs with like 150 watt RMS so you aren't under powering the subs too much. Maybe some 10" JL's or something.
4000 BTU = 1722 watts
Yes, you can bridge two 1000-watt subs to a 2000-watt amplifier, provided the amplifier is designed for bridging and can handle the impedance load of the subs. Ensure that the combined impedance of the subs matches the amp's bridged output specification to avoid damaging the equipment. Additionally, verify that the subs are rated to handle the power output safely. Always consult the specific manuals for your equipment to confirm compatibility.
4 gauge
Yes the amp can push the 2 subs. I have 2 1250 watt 12inch subs and 1 maybe 400 or 500 watt amp and the amp does fine but if you want more bass at lower levels of volume then you want to have a bigger amp. Just make sure your amp doesnt blow your subs.
This depends on the sub your talking about 1 12" JL sub is better than 4 12" rockford subs
Absolutely!! If you turn up the gain too much, the speakers will smoke. You can use it at a lower level
no you wont get a 5000 watt amp and u will be fine
yes say you have a 10" kicker sub that needs 250 watts to hit and you have a 1000 watt kicker amp you have to much power going into that sub so it will hit harder. BUT if you but more subs and your amp has a few channels you can send the right amount of power to the subs without risking damage. i have 2 12"kickers with a 1000 watt amp so i have to much power but my subs sound amazing so do what you want most subs are $80-180 HAVE FUN
YES! it won't reach it's peak, but that's also probably a good thing, cause it'll be harder to blow your sub. i prefer to buy either the exact watt match for my subs and amp, or buy the next lower watt amp from my subs