RedZone

i ahve used 1 subwoofer always. ive never had 2. never seen a need for it. i hit 145 dbs with my 1 12 ( on the old mics) with 650 rms. the need for 2 subs is jsut in peoples head. i look at it this way . you have so much space. use it wisly. 1 sub ported or 2 sealed use teh same amoutn of space ( usualy). i prefer the sound of a ported sub and 1 ported is just as loud as 2 sealed ( equal power and all)

my opinoin that 2 is not better then 1. Due to the space limitations in a vehicle. and the fact taht my 1 10 is loud enough to make me deaf in a short period of time.

NOBASS

BUT (just to stir this puppy up), is it not true that two or more woofers would create intermodulation distortion issues, therefore 1 is better than 2.

: Getting into flame retardant suit :

Mark

Hardwrkr

iTrader: (5)

Two subs equal more money, a larger enclosure, and more chances of cancellation.

Personally I'd take one really nice driver adequately powered over a pair of lesser drivers.

Haunz

iTrader: (3)

Not untill the wavelength of the highest frequency being produced approaches the length from one woofers far edge to the others far edge...

Not really an issue with sub bass freq....


Cone area is a big advantage if you are compaing one driver to two of the same size... BUT, you also need 2x the box volume or this gain in effeciency will be reduced....

If you have two identical woofers instead of one on the same amp, you will also have less power compression... possibly much less if the single woofer was driven near its power limits.... also 2 woofers splitting the current will not excurt as far as one... this could mean better sound quality if the single driver was being driven past its linear range...

[ January 26, 2005, 09:45 PM: Message edited by: Haunz ]

SilverGS

Please explain that again in laymans terms!

newfinish

it will surely not make more sound if you have the same wattage playing in 2 subs instead of one .

Brandon

iTrader: (1)

Yea, it is louder.

think about it. You have one sub pushing air with x-amount of power....now you add a second sub. they may only be getting half the power that ONE sub got, but now you have twice the cone area, and twice the ammount of air being moved.

Speakerman

the advantages in having multiple subwoofers is obvious.

Imagine this comparison......
Two D4 ohm 12" drivers with 1000Wrms @ 1 ohm <<VS>>
One D2 ohm 12" driver with 1000Wrms @ 1 ohm

The dual setup will most definately last much longer in a daily driver setup as you wont have to push each sub as hard to get the same amount of sound. The added cone area with gain you approximately 3 dB, so you can jam a little louder. They could also possibly sound better (depends). They would only throw approx. half as far so... distorsion due to cone flex ect. will be reduced, although, the single 12" may actually sound "tighter or punchier" with the doubled power.

Please excuse me for any usless rambling as I'm not taking the time to re-read this at 1 AM...

[ January 30, 2005, 12:42 AM: Message edited by: Speakerman ]

newfinish

if you have 2 subs with 100watts total and 1 sub with same watts you get the same result because the single sub moves more the piston movement compensate for the cone area.so in order to play louder you need more watts to feel that is playing twice as much.I've tried 1x15",4x10",2x12"with the same amp ,PPI art serie A600 and had about the same result in power ,BUT not in sound.and don't forget your efficency on the sub,on the 15" it had 98db 1w meter,10" had 87db 1w meter,12" had 94db 1w meter,then there's xmax,15"was 11mm one way,10"was 6mm one way,12"was 13mm.and of course there are other factors box size,sort of box etc...mine were all sealed.using more than one sub will help you have a better bass at loud volumes since you divide the power so they play at their best [img]graemlins/thumb.gif[/img]