Hey guys. I stopped by a local car audio shop yesterday and talked to them about putting some subs in my 09 FX4 supercrew. They said they could build me a custom box and put four 8" subs under the rear seat. I thought about going with 4 JL audio 8w3's on a Rockford Fosgate T1500 watt Mono amp. Do you all think this would hit hard? Any other suggestions? Any opinions or advice would be appreciated. Thanks.

 

If you just want heavy bass, 4 8"s is weaksause. Do something more Xtrem.

 

What would you suggest? I have to keep the rear seat because my kids have to ride back there. I need something that will fit under the seat. If you guys have some opinions on what to put in my truck, then spew it out. I'm all ears.

 

Simple, 2-10s under the rear seat, amp on the back wall.

 

or 2 12's

 

2 CerwinVega V-max 10's FTW
i love my single V-Max 10 it shakes everything by itself 600watts RMS 1200Max my wipers and my steering wheel flex pretty good with it i can only imagine two

 

2 kicker cvrs, and a kicker z750 amp!

 

Go for some Memphis shallow mount 12s.
Grab an amp that will push it's max, run it at the RMS but you can crank it and you'll be more than happy.
They can be mounted in three inches.

 

I just installed 2 JL 10w1v2 in a screw box with .08 per there web site. A kicker 5 channel amp it gives 210 to each sub. Not sure what you are looking for but this set up hit pretty hard with the stock HU per the owners request. Because of all the gadgets that ford now builds into the stock radio

Mark

 

Dont listen to these guys, do the four 8's Be different!

 

Agreed!

Four 8's will give you better transient response than any of the above suggestions. Plus, all else being equal, each driver will not need to be stressed as much to achieve the same SPL. Do a surface area equivalent calculation. Each driver cone will be 'stiffer' as well, all else being equal.

I go for fildelity over that 'hitting hard' nonsense any day.

Quality 8's, driven properly in the correct enclosure will sound great.


Whatever happened to striving for accuracy and musicality ?

BTW - You guys are all too young to remember EV's 30-inch bass driver back in the day - enormous low-end extension but very muddy.

Anyone market a very-long-travel servo-controlled sub-amp combo for mobile use that's affordable? Think Sunfire ....

 

2 12"s has more cone surface area than 4 8"s. And believe me, I'm all about clean musical reproduction and the subwoofer's ability to disappear into the soundstage.

I do remember Styx's build with four 9kv.2 subs though, it looked good.

 

Yes two 12s would get you about 1000 cm^2 of cone area vs four 8s w/ 800 cm^2... roughly 25% more displacement in cone area alone.

4 8s would work in around 1 ft^3 sealed, and around 2 ft^3 ported. Two twelves on the other hand would require 2-2.5 ft^3 sealed (Unless you're running SI BMs ). You can throw out porting them, these trucks don't have enough space.

In my old F150 I ran a pair of 10s sealed, then a single 10 ported... then a pair of 8s ported, then finally four 8s ported. I liked the four 8s the best. Got loud and LOW. I now run a single 12 ported in the SD and like it better than the 8s but it doesn't get near as loud.

 

haha styx...whatever happened to him? I miss low too.

 

Hey guys. Thanks for all the suggestions. I have one more question. If I got one of those rear seat lifts from LMI welding and raised my seat 2.5 inches, what kind of subs could I fit then? What would be the max top mount depth subs I could go with? I have been looking at these subs but I have my doubt they would fit even with a seat lift. Not unless the subs were facing out instead of firing up or down??? Anyway, here are the subs.

http://www.sonicelectronix.com/item_...CCA-10.4-.html

http://www.sonicelectronix.com/item_...io+10W7-3.html

http://www.diamondaudio.com/content/view/123/189/

Let me know what you all think. Thanks.