subsonic filter vs using a crossover

[j0sh_o6 10+ year member]

ok here is my situation I have a jbl 1200.1 pushing a XXX 12 in a 1.2 cu ft sealed

this is just not loud enough for me and I want to go ported but my amp does not have a subsonic filter I have front and rear rca's hooked up for non bass after extensively searching the forum I’ve found very few sites with subsonic filters on them most being 25 bux for the pair and I’ll need 2 sets I figured if I buy 2 sets of these I might as well buy a cross over that can do this for me but I'm not looking to spend a lot of money on this stuff I’ve already spent a ton and am out of money right now any suggestions would be appreciated I'm kind of at a loss right now and don’t know what to do.

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[JimJ 5,000+ posts]

Tune low enough, and you won't need to worry about a subsonic filter unless you play test tones near tuning.

Tune somewhere around 30Hz and below, and you should be good with your current amp.

 

[j0sh_o6 10+ year member]

i was hoping to tune closer to 35 hz though

 

[j0sh_o6 10+ year member]

anyone?

 

[iceteebone 5,000+ posts]

http://www.crutchfield.com/S-DCWhfJzb8Ka/cgi-bin/ProdView.asp?g=82600&I=069900074 something like that would work except you would probably want 30 hz. instead of 50 hz.

 

[j0sh_o6 10+ year member]

i seen all of them but im running 2 sets of rca's to my amp for non fading so i'll need 2 sets of them was just wondering if there was a cross over around the same price as 2 sets of fmods also i've heard if you tune to 35 hz you should get a ssf of about 20-25hz

 

[iceteebone 5,000+ posts]

i seen all of them but im running 2 sets of rca's to my amp for non fading so i'll need 2 sets of them was just wondering if there was a cross over around the same price as 2 sets of fmods also i've heard if you tune to 35 hz you should get a ssf of about 20-25hz

how are you running 2 sets of rca's to one subwoofer amp?

 

[j0sh_o6 10+ year member]

i got front and rear outs on my deck and i have front and rear inputs on the amp for non fading bass so no matter where i got everything faded for my comps bass is always the same

 

[tRiGgEr 5,000+ posts]

You hooked up your front and rear rca's for bass and not the sub out???

 

[iceteebone 5,000+ posts]

i got front and rear outs on my deck and i have front and rear inputs on the amp for non fading bass so no matter where i got everything faded for my comps bass is always the same

what headunit do you have?

 

[j0sh_o6 10+ year member]

i have a pioneer deh p7300

 

[j0sh_o6 10+ year member]

You hooked up your front and rear rca's for bass and not the sub out???

there is no sub out just front and rear out

 

[iceteebone 5,000+ posts]

i have a pioneer deh p7300

that deck doesn't have a sub out? the 750 and 760 had sub outs.

 

[j0sh_o6 10+ year member]

well it looks like it does guess i goofed up i thought the sub out was an aux in so i guess i got rca's ran for my next project already lol but now with my amp having front and rear in which place should i put my rca's in at or should i buy Y splitters?

looks like this killed 2 birds with one stone now i dont need 2 sets of subsonic filters and i found out i had a sub out on my deck and i didnt know it

 

[iceteebone 5,000+ posts]

i never seen a mono subwoofer amp with front and rear inputs. just run a single cable from your sub out to the amp with one of those f-mods on it.