Subs with 4 channel Amp...

[lionel2 10+ year member]

I have 3 JL subs and i am getting a 4 channel amp installed soon...with the 4 channel installed will i stll get the big bass...or is everything have to be turned down so i dont blow out my door speakers and dash or can everything be adjusted on the gains or the 4 channel amp and the HU bass and treble levels??...and if i am running 2 amps a mono and 4 channel..do i wanna keep the 4 guage from distro block to mono amp and run all 4 gauge for the 4 channel amp??...i dont wanna use 8 gauge...if the amp is a 50A fuse rating i wanna use a 50A fuse at the distro block correct and a 60A for my mono which is a 60A fuse rating and like 100A fuse under the hood...manuals say to make at or below...please correct me if wrong and add any info that might help..thanks

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[lionel2 10+ year member]

any takers on this subject??

 

[lionel2 10+ year member]

No..i am running my subs off a mono amp yes...and i am going to run a 4 channel with NO crossovers for my doors and dash..My HU has built in crossover..LP/HP..its a pioneer DEH-S7700MP...will i be okay with no crossover on my 4 channel?? but my HU does have them..i ahve them set to 80hz for both now...will i be cool to run this 4 channel for my doors and dash??

 

[lionel2 10+ year member]

Its a USA-425 from US amps...i called them and they said it has rear and front inputs...gains for both..no crossovers..25x4@4ohm...12" long...from 1997...thats all i know

 

[wilzyx 5,000+ posts]

you will be fine with the 4 cabin speakers running off that amp, just set your gains with a dmm and high pass all your speakersat about 100hz with your head unit and low pass all your subs at about 80hz with the mono amps built in crossovers.

 

[lionel2 10+ year member]

so set my doors and dash to 100hz and my subs to 80hz...okay

 

[lionel2 10+ year member]

Death by Bass..where you get that pic??..its cool..thank you i have been looking high and low for a end views of this amp

 

[lionel2 10+ year member]

So..i do not have to buy a sperate crossover or anything?? cause my HU has all of them the LP/HP built in

 

[wilzyx 5,000+ posts]

what head unit do you have? and it doesnt matter if you use amp crossovers, head unit crossovers, or an external crossover, cuz they all do the same thing. just pick the one thats easiest to adjust because those 100hz and 80hz crossover points i gave you are just what most people start at and you will probably want to adjust them to what sounds best to you.

 

[lionel2 10+ year member]

i have a pioneer DEH-S77000MP...it has a 2 way built in crossover LP/HP