Need more Bass!

[ominub 0]

Hi, I have a 1999 blazer with a single 12 Fi Q powered by a cadence zrs-7000d which is running at about 1300 rms at 1 ohm. The Fi Q is in a 2.2cuft L-Ported box tuned to about 32 hz. I really like this sub woofer but i am looking for more output. I have some questions now. First, i am looking to add another Fi Q 12 and making the box to about 5^3, i would be buying another zrs-7000d and bridging them together to get 2600rms at 2 ohms. Would there be any better subs that would give me noticeably more output out of a 5^3 box with about 2600rms? Second, would a new 250 amp alt and a optima yellow top under the hood be enough to support the electrical for the 2600watts? Third, i am going primarily for output, the bigest box i can fit is right about 5^3, i would get more output from two 12's at 1300rms a piece then one 15 at 2600rms right? Thank you for your help!

[bassahaulic 155]

How much port would that 5^3 box have? You want sheer output without caring about how it sounds?

[ominub 0]

I am sorta newer to car audio but i could build the box to whatever is necessary. And yes i do care about sound quality, i want it to still sound decent on music, but i am willing to sacrifice SQ for SPl

Edited February 22, 2011 by ominub

[bassahaulic 155]

I'd go for 5^3 with 100^2 port area tuned to 35Hz. Should get down REAL good. Same box I have in my GF's car doing 146's at 38Hz legal.

[ssh 924]

Sounds like you need some bls or btls.

[ominub 0]

Ok, thank you. So what do you think about the electrical? would that be enough to support it?

[smashedz28 110]

i agree, the Fi Q isnt the woofer for you, look into BL's or BTL's like stefan said.Electrical If i were you i would start with the big 3 and a new front and rear battery, if voltage doesnt seem under control get the alt too i guess.

[bassahaulic 155]

Ok, thank you. So what do you think about the electrical? would that be enough to support it?

Would the Yellow Top be a second battery for the rear?

[ominub 0]

The thing is i really dont have room to fit a second battery in the back, would upgrading the alternator be just as efficient as putting in another battery? Also, how much more output would i get with the BL's over a Q?

[smashedz28 110]

cant speak on the BL's, dont own one, but i have a 15" Q and an 18" BTL. and the difference in output is day and night.

[ssh 924]

Between the 250amp h/o alt, whatever starting battery, and a large xspower or kinetik, or even some deka 9a31s you should be good.

Not sure about using an optima battery, I've read they don't like being charged at 14.9v+, that they don't last very long.

To give you an idea, I ran a saz1500d at 1ohm with a 230amp alt and no extra batteries, full tilt voltage wouldn't drop below ~13.8

[Notorious97200 339]

It depends on your car.

I had a 1500 w Sundown amp on stock electrical, with big grounds everywhere( batts, amps, engine block,...) and no problem at all.

Now I have a secondary Kinetic 1200 battery in the back, and my voltage went up a bit. But with engine off, the voltage is a lot more higher than before, and won't go down easily with music on) !

My car has a diesel engine, and must have a big stock alt.

You need to try !

I had a 15" (SSA Icon and then Xcon) sub taking up all the room in my trunk. Now I run a 12" BTL, so the box is smaller, and I could fit the Kinetic battery easily. I have much more bass now !

Sell the Q, and get a Fi btl or a SSA Xcon or Zcon(when it's released). You should love any of them.

I tried aeroports, and yes, it can make you save room for a 15" sub. Not really for a 12" , the box is too small !

[bassahaulic 155]

My car has a diesel engine, and must have a big stock alt.

This isn't necessarily true, since the motor doesn't run with electricity just needs it to start and power some fuel systems.

Replace it with a large alternator, and put a large battery under the hood where your stock one goes and you should be all set.

[Ohjay 116]

big 3, big alt and a big battery should give you the big bass you crave. do it do it

[BaMF101 3]

Im guessing the BTL n2 would be more suitable for you... since youre new to car audio. Putting 2600 watts on a BL is do-able, but very risky. 2 12" Bls would also be good.

x2 to what everyone is saying, bigger alternator, big 3, and a battery or 2 in the back.

Edited February 24, 2011 by BaMF101

[ominub 0]

So your saying 1300 watts a piece for a bl is to much?

[BaMF101 3]

So your saying 1300 watts a piece for a bl is to much?

No I was saying putting 2600 on a SINGLE BL would be very risky, 1300 on a BL is perfect