Chosen Solution
Previously I had one 10 Jl audio bassWedge and another one was Eclipse 12 both subs were around 500rms and my amp is kenwood 1000w peak and 500rms this combination was awesome amazing bass all over, however, recently I bought twin 12’’ kicker comps series sub and the issue I’m having is I’m not getting much bass as I used to and when I turn the volume up my car lights dims which not used to happen before so what is wrong and how I can fix it?
Sounds like your battery is bad, alternator not charging, upgrade battery to higher capacity or run additional auxiliary battery. Are you running the speakers at 2ohms this wiring configuration will demand more power to drive the amps. Confirm your amp power cable size 4awg or larger is good add AUDIO CAPACITORS 1farad or higher rating to your amps should prevent headlights from flickering. Have your battery tested under load, confirm your alternator is charging your battery properly. Check all ground wires to your amps. Bad ground will reduce power to your amps. If all else fails have a reliable audio shop look at your setup.
make sure your power wires aren’t excessively long as well.it does sound like you are running them into a 2ohm or lower load though.
