I have been thinking about selling my crossfire 12 and box and using two 10" jlw7s. It seems like it would sound better and they would fire facing the back of the car versus the 12" being to close to the hatch wich makes it not sound as good as it should. If that makes sense. Anyone have opinions on this?

 

The 10's would keep up a little better with all the beats. The 12 might give you some better low end. IMHO 2 or 3 10's in a 350Z is perfect. Im running 1 12L7 and it sounds great. But the box is so massive that it takes up my whole hatch and doesnt have muh of a show factor that an understrut fiberglass 10" box would have.

 

Two 10's has more surface area, and given similar excursions you will def. get more output from the two tens. IMHO ten inch subs reproduce the music much more accurately especially when combined with a sealed enclosure. Your low end should'nt suffer at all as long as the box is on the bigger end of the reccommended internal volume.

 

two is better than one

 

Facing backwards into the trunk actually loads up the trunk like an old Klispch KornerHorn and you get gain from wrong direction facing spekaers. I like the transcient response of the smaller woofers. In the house I have four 8 inch woofers and a 12" subwoofer. The smaller woofers seem tigher to me - the majority of the drums kit hits harder. The larger ones do better with the kick drums but the 10" woofers go to within a dB or two of the lower frequency of the 12".

In music there is very little below 40 Hz and nothing below 25 Hz. In hip-hop you're going to find lots of energy down there which is synthetic. In home theaters there is plenty of stuff below 40 Hz and down even to 10-12 Hz. I have some movies that are just a hoot to experence with my SVS Ultra. King Kong and War of the Worlds (both the new movies) are full of super low frequency information.

 

2 10s ... for ease of install.

 

+1

2 10s moves more air than 1 12. Quicker reponse is always better for music IMO. I run 2 8w3s in a zenclosure. I went for sound quality this time instead of SPL. You'll be surprised in the improvement...go 2 10s.

 

assuming your powering your 12" with full rms

assuming when you put 2 each 10" w7 you will power them with full rms

yes the 20" inches of cone surface with full power will be be louder , move more air , and in this case because imo a w7 is a better sub than the cross fire it will also sound better


so get the better subs , give them full power , recapture your trunk

and peace out

 

i have the jl audio box that they make for the 350z which comes with 2 10's. it sounds pretty good. but the 1 12" rockford fostgate that i had in my other car hit harder. but then again, i like bass.

 

Get two 10" crossfire BMF 1014's or 1028's depending on the ohm load of your amp. If it can operate at 1 ohm stable go for 2 1014's as they are selectable 1 or 4 ohms a piece then put them at 4 ohms a piece and parallel wire them together for a kick *** sound. If it operates at 4 ohms get two 1028's as they are selectable to 8 or 4 ohms a piece then put both at 8 ohms and parallel wire them together for just a little less power. Oh yah and they are 300RMS a piece and have a xmax of .54 inches each. Your amp should power them just fine without hurting them as they are 1200 watts dynamic rated a piece. so youll have 20"x1.08" of pure BASS!!!!!

 

I have 2 10's sealed with some polyfill to bring it a bit lower. Hits nice, is crisp and clear...

Only thing is that the rear view mirror rattles like a ****.

 

True, but two 10" subs are not even close to a 20" sub

 

20" is the cones of the 2 each 10" subs in question added together

not reffering to a single sub that is 20"

 

It depends on what kind of music you listen too.
If it is Techno with fast hits, then the tens are fby far what you should go with..
If you like R&B with the low deep bass, you might be disappointed by the tens...
I have two tens in my Camaro and 1 12 in my Spec-V its amazing the differenece in the sound...

Just my .02

 

I kind of see what you are saying ... but it realy just sounds wrong.

 

You cannot look at it as a 10" or a 20" or a 12" woofer when trying to determine what will be louder. You have to look at the surface area of the woofers. In theory a single 10" has a area of 78. Two 10's is 156. A single 12" has a area of 113.

This being said the two 10's will have more area so it will be louder. The only thing about under the strut is there is not enough volume to get a good response curve. I have heard the dual 10" W7's several times in this box and I would really say I enjoy the sound of the single 10" W7. It gets the volume it needs and still gets stupid loud with the correct amount of power. If you are looking for just pure bass the 2 woofers will be what you are looking for.

I would like to think the single w7 10" will have about the same output as the 12" crossfire. Not because of surface area but because the motor structure is far superior and has alot more xmax then what the corssfire does.

 

No sorry your wrong on the superior design of the jl. Lets see a top of the line crossfire has a one way linear xmax of 2.2". whereas a w7 is only 1.15". SOOO your wrong please research your subs first thanks.

 

Are you seriously that dumb?

Please go ahead and edit the ignorance out of your above post .. in fact, just delete it.

 

Actually I think you were looking at it wrong. That is the peak to peak excursion limit. So the 10 w7 and the top of the line crossfire 12 are actually very close in excursion limits.

 

Not to mention that the JL uses a much better suspension system with an FEA optomized roll and a larger spider. Top that off with a smaller VC ID (of the Xfire .. ie - less power handling) and I'm gonna go out on a limb here and say that the JL is a significantly better designed woofer.

Jim (hates JL, but recognizes what they do well)