nauc

"For example: producing a 1500 watt output requires about 217 amperes of current from your car's system. It's actually about a third of that for music, which doesn't put out full power all the time — but it's still a lot of current" from... https://www.crutchfield.com/S-gmloUvAKyPf/learn/big-3-alternator.html

id just do one like this. as long as you get the right volumes etc, should be fine

id take the rear deck speakers out first, that will help let the bass vent into the cabin. heres my 99 Accord. im running one 12" RE SE sealed

it wont perform good. if you wanna run ported, get a different sub. id get the SA. you can run it sealed or ported

that amp can run both your subs, but getting a more powerful amp, would be ideal... i wouldnt run 2 sub amps. id just run 1 really powerful one and heres how to set your amp gain. the correct test tones (50hz for sub, 1khz for mids/highs) are at the very bottom https://jlaudio.zendesk.com/hc/en-us/articles/204374120-Amplifier-Level-Setting-Guide note.. set deck sub volume to 3/4. that link doesnt mention it, but JLs amp manuals do

did you set your gain like JL recommends? .... deck 3/4 volume bass and treble = flat deck sub volume 3/4 crossovers off bass boost/loudness off 0 db 50hz tone for subs 0 db 1khz tone for mids/highs the correct test tones are at the bottom... https://jlaudio.zendesk.com/hc/en-us/articles/204374120-Amplifier-Level-Setting-Guide

run a 12" sealed, i do. i listen to Metallica, Eminem, Bass Mekanik etc, sounds great, shakes my entire Accord sedan with ease. i have the 500 watt version of this amp, things solid https://www.woofersetc.com/c-23-subwoofers/c-34-12-subwoofers/p-9261-sa-12-d2-sundown-audio-12-600w-dual-2-ohm-sa-series-subwoofer.html https://www.woofersetc.com/c-3-amplifiers/c-27-one-channel/p-10270-r750-1d-rockford-fosgate-monoblock-750-watt-prime-series-class-d-amplifier.html my setup...

audiofanaticz is right. i have an Alpine 9887, the RCA outs dont clip at full volume. but the internal amp clips at volume 21 out of 35 i have an oscilloscope, scoped it myself

play a 1khz test tone. you can hear clipping. tones at the very bottom. you can wire up your speakers in series too if youre afraid you might burn em up https://jlaudio.zendesk.com/hc/en-us/articles/204374120-Amplifier-Level-Setting-Guide

gotta set your gains right and use test tones. heres how. tones are at the very bottom https://jlaudio.zendesk.com/hc/en-us/articles/204374120-Amplifier-Level-Setting-Guide

if your amp puts out more power than your speakers can handle, you dont have to worry about clipping if you know how to adjust your gains correctly if your amp puts out less power than your speakers can handle, just turn the amp up until it clips, then back it off a hair. you can hear clipping

http://www.woofersetc.com/p-6262-sps-600c-alpine-type-s-65-component-speaker-system.aspx

i use the xovers on my deck

a flat frequency response = better sq. ported boxes peak, thats why theyre louder than sealed boxes. if the peak is BIG, it will get real loud but wont sound very good id add a 2nd sub and run them sealed if you want to keep the sq you have but want it louder

http://www.audiojunkies.com/blog/1397/gene...a-complete-dick