what sub should i buy?

[ayjay]

what sub is good? i need a sub that goes loud, and shakes the car and you can hear from 20 blocks away.. thanks!

[L0sT]

dont u have a DD? isnt that enough lol :ylsuper

if not, try Elemental Design's A series subs or..Adire Audio's Brahma sub or...Re Audio's XXX sub. I've heard that they are all excellent subs.

[Rex]

• Space?
• Size
• Box design (existing or to be built)?
• Budget?
• Power feeding?

How come all I ever have are questions?!?

[maxI30t]

if money is not a problem get an ID max

[Simmsled]

Well ayjay... here are a couple subs that I have been looking at for my next setup.

Image Dynamics IDMax 12JL Audio 12w6 D4 (maybe even a W7, dunno yet)Kappa Perfect 12d VQ (adjustable for box size, really cool feature)

thats what i have considered so far... that list is not exhaustive but i have to go study for my marketing class exam... peace

[ayjay]

haha sorry for wasting your time guys... i was a little tired last night and felt like asking a stupid question, figured it would keep you guys occupied for a bit :pface

and rex to answer your questions which you always ask...

- i am lookin for a beefy sub that can handle 2000W RMS burps (+/- 200W)...

- wanna be able to compete for SPL so something that has pretty high sensitivity but can also handle a lot of power (15" Stroker is one of my choices)

- must be a 15" since i am building a box for a 15...

- must work well in a large vented enclosure (3.5cu.ft - 5.5cu.ft)

- preferably dual 2 ohm voice coils, or dual 4 or quad coils... either way i wanna be able to run it at either 2ohm or 1ohm

-budget is open to almost anything cheaper than Focal :pface

thanks guys

[ayjay]

LOst... yes i do have a DD9015... but i dunno... i kinda want somethin with a little more SQ or something that is built for even louder SPL... the DD is 92db sensitive, tough to beat... only sub i've found so far is the Stroker which is 95db sensitive...

i've looked into the Eclipse Titanium Series as well cause they work well in larger vented enclosures, cept they are $$$

[Rex]

Yes, I have an affinity for McCauley subs . Check out the 6244 15" transducer at their site - http://www.mccauley.com/mainframe.htm

Doesnt meet your wattage specs, but the sensitivity is nice.

Here's some of the specs:

Nominal Diameter 380 mm / 15 Rated Impedance 4, 8 or 16 ohms Power Capacity 800 W cont. program Sensitivity 98 dB Frequency Range 40 Hz - 2000 Hz Highest Recommended X-Over 1200 Hz Recommended Enclosure Volume 42-127 L / 1.5-4.5 ft3 Effective Piston Diameter 337mm / 13.25 Voice Coil Material Edgewound copper ribbon Voice Coil Diameter 100mm / 4" Magnetic Coil Gap 7.5mm / 0.295 Magnetic Assembly Weight 7.7kg / 17 lbs Flux Density 13,500 gauss Bl Factor 23.5 T*m(8) Moving Mass 0.119 kg Fs Free Air Resonance 40 Hz Re D.C. Coil Resistance 3.2(4) 6.0(8) 11.5(16) ohms Qts Total Quality Factor 0.24 Qms Mechanical Losses 9.70 Qes Electrical Losses 0.28 Vas Equivalent Volume of Air 144 L / 5.10 ft3 Sd Effective Piston Area .089 m2 / 138 in2 Xmax Excursion - Max Bl 4.6 mm / 0.18 Vd Sd x Xmax 411 cm3 / 25.1 in3 Le Inductance of V.C. .8 mH (4) 1.6 mH(8) 2.2mH(16) %eff Mid Band Effeciency 3.4% Pe Max Power Rating 400 W RMS sine wave Overall Diameter 390 mm / 15.35 Overall Depth 142 mm / 5.6 Bolt Circle Diameter 372 mm / 14.65 Baffle Cutout Diameter Front Mount 355 mm / 13.97 Rear Mount 347 mm / 13.65 Net Weight 10.6 kg / 23.5 lbs

[Rex]

The 6342 is nice as well, especially if you a some carbon fiber sub.

[ayjay]

thanks Rex! those are some definite possibilities... those things look pretty ****in cool... gonna plug in their specs into winISD when i get home and see what kind of numbers i get back.... my only concern is their power handling, but i could always cut back on power if need be...

[Rex]

I used to run one of the 15's off the back end of a RF Power 300, while a buddy ran 2 18's iso-baric clamshell each 1 seeing half a RF Power 650 bridged into 2ohms.

They are professional loudspeakers, not "designed" for Car Audio, but if you've got room, they'll BOOM, sorry couldn't resist.

[ayjay]

oh i'm sure they'll go boom... but i don't know how they would compare to like a stroker or my DD for that matter... gonna plug specs in now, we'll see how it goes

[ayjay]

hmm no luck rex... looks like they're only good for like a 50hz tune in a vented enclosure... winISD isn't always right, but stroker seems to be the best bet at the moment...

i'm likin the idea of somethin rare though... come to think of it, around here i never see CV Strokers...

[whosurdaddy018]

1 candence beast master 15 handles 5000 watt burps

[ayjay]

1 candence beast master 15 handles 5000 watt burps

haha beast master, hopefully it doesn't sound as gay as its name :pface gonna check it out

[ayjay]

looks pretty tight... but VERY similar to another sub i been lookin at...

check this out: http://www.genuinecanadianaudi...d=279

need to find some more specs on it, but the first thing i think i'd do is rip the vinyl logo off the dust cap and redesign one at my work :P

[mattlord42]

My roommate just got sponsored by MTX and is running two of their new 9500 series 12s. He has been installing for years and has run many different setups and says that these are the loudest that he has heard two 12s hit. Before that the loudest were his two IDQ 12s. The subs will be metered within the next month. The 9500s were designed to outperform JL's W7 series at a fraction of the cost. The specs can be found here:

http://www.mtxaudio.com/caraud...0.cfm

They say they are rated for 1000 watts RMS but he is running each one with an MTX 1501D.

Matt

Oh yeah, when he got them in and running they were enough to blow the windshield seal in his 2003 Cobra.

[StockerThanStock]

Try a pair of Kicker Solo X 18"s, can't have rims bigger than your speakers now...

[ayjay]

hey mattlord... that 15" MTX T9500 looks pretty tight... don't like the idea of runnin MTX but this sub could definately be an exception... has 93.8db sensitivity and a beefy 260oz magnet... gonna definately look into this sub

oh and stockerthan stock, yes an 18" Solo-X would be INSANE, but i gotta fit it in the box that i'm making for a 15" ROUND sub :pface

i mean if money was no option then i'd just get the new 18" Focal 46KX... 96db sensitive, quad 1 ohm voice coils, each coil handling 1000W RMS... it's Focal's SPL sub don't think anything could compare to that...

[mattlord42]

ayjay-

All of us felt the same about MTX. When my roommate told us about his sponsorship with them we asked if they even had anything worth time but now I must say he has made believers out of all us. Those 9500s are not only loud but they keep up to fast bass (old school Metallica and Pantera etc...) really well.

Matt

[diamond]

look at brahmas,has more s.q.than d.d.

[ayjay]

diamond.. ya i actually have been lookin at brahmas... look pretty fukin cool! i was kinda avoiding them cause of their low sensitivity rating...

like my DD 9015 has 92 db sensitivity whereas the Brahma is only 87db... that's a whole 5 db in sensitivity difference, how much does this really matter in terms of competing in SPL competitions?

the stroker is 95db sensitive!!!

[audtatious]

Depends on where they measured the sensitivity at. The normal is 1w/1m but some companies have been cheating somewhat and moving the mic closer.

5db can be considered a big difference $$ wise. As an example, 12" sub hitting 120db w/300w power. To get a 3db increase you will have to double your power to 600w. For the additional 2db, you would have to increase power to 1000w or so. In this configuration, you would have to upgrade your amp from a 300w lower-priced amp to a higher-end 1000w amp.

There are two ways to increase db. One is to double the power for each 3db or double the subs surface area.

[diamond]

well said,K+,,to be honest..if i ran spl comp i would put at least 2000 watts a speaker.ive seen 4 9515's hit 168.9...my buddy has a 1000.00 11" focal sub face up center of his dash.and 2 focal 15's for spl portion.hes in ultimate class.they are s.q...those mc cualy spec look like midbass speck..how well can they play a 18 hz note with an fs of 40,kinda high dont you think.check out my buddies ride.here the link...http://www.sounddomain.com/id/all4sq2

[audtatious]

Thanks D...

Very nice 'Bird and interesting work on the front kicks. I've made them before using an old t-shirt and balsa-wood to get the correct angles (fiberglass resin to create the form). I've just been out of audio for so long, the changes are pretty interesting. Of course, the basics are always the same.

[Altiman94]

if all you want is a loud sub. Buy a 13.5 w7 and power it with a 1000/1 jl amp.

[ayjay]

hey audtatious, thanks for the heads up on the 3db increase thing... i kinda knew that already, but i wasn't sure if the sensitivity of a speaker meant the same thing... yes the DD and the Stroker were both measured at 1W/1m, my DD having 92db sensitivity and the Stroker having 95db...

but that's why i'm asking, cause the Brahma only has 87 db sensitivity... and i plugged both my DD and the Brahma into winISD and the SPL levels were around 90 db for the DD between 40-90hz and 87db flat across the board for the Brahma after 30hz (very nice response)...

SOO does this mean that technically my DD should hit 3db higher than the Brahma with the same amount of power at the same frequency, say... 55hz?

[ayjay]

if all you want is a loud sub. Buy a 13.5 w7 and power it with a 1000/1 jl amp.

looking for somethin bigger than a w7 and an amp that puts out about twice as much power than a 1000/1 :pface

[audtatious]

Correct. The DD should have a higher DB across the board assuming the same "conditions"....

[IveBeenBad]

RE XXX 15"JL 15W6v2