Sound quality when running 2 different subs

GPXXX · Post by **GPXXX** » Mon Jan 05, 2004 4:19 am

will it sound weird if i ran 2 different subs together in a single box...? for example i currently have a single 12" PG Tantrum 12D fitted, but for more boom-boom factor I'd like to add another sub, possibly either a JL W0 or a Kicker EX...

How will this affect the sound produced?? Will it give me a deeper bass or it'll just cancel out the frequency from one to another??

FTO338 · Post by **FTO338** » Mon Jan 05, 2004 7:49 pm

Hmmmm isn't this call the "pull & push" technic, which i've seen a few in Sounds comp

G_A_V · Post by **G_A_V** » Tue Jan 06, 2004 1:48 am

the pull and push technique, i think is where you wire one of the subs in the same enclusere, so that you cross the possitive and negative, and then the subs go oppisite ways, eg on will pump out while the other goes in... i think ..
btw mikey no idea what the sound quality would be like, but would one 12' tantru be enough ?? I would reccomend sepperate enclosures

GPXXX · Post by **GPXXX** » Tue Jan 06, 2004 3:48 pm

no i don't mean inverted setups... i just want MORE BASS (so you can hear my boom-boom from a block away hahaha

) without the complexity of separate enclosures...

what i mean is an enclosure with 2 different types of subs mounted on it (which may coincidentally share similar enclosure sizing recommendations from the manufacturer, which is unknown at this stage)

i can't seem to find another 12" PG Tantrum 12D on the market, so i might have to settle for a different sub...

payaya · Post by **payaya** » Sun Feb 22, 2004 6:13 am

it would prob sound bit different but not as in bad different. Maybe increasing power to the PG sub? maybe even use a ported box if you dont already?

Maybe even remove the 6 x 9s in rear shelf, to let through more bass is a good idea?

Also its a good idea to seperate the box into two chambers for your subs well being if something does go wrong.

If you add another sub but still use the same power from amps you would hardly notice an increase in DB.

The fto has a sealed boot so letting through the bass by removal of speakers is a good idea, cheap as well.

ruchi · Post by **ruchi** » Sun Feb 22, 2004 12:43 pm

Nice short answer now!

mrdj1234 · Post by **mrdj1234** » Sun Feb 22, 2004 1:59 pm

What a detailed answer Ruchi... nice one

Just to follow that up - car audio is a little more flexible, but in Pro audio we try not to use different kinds (brands etc) of drivers in a single setup. This is because each individual model of driver has different characteristics - even if they appear the same, ie: 12" with 2" voice coil etc. The differences in mechanical and electrical specs of the drivers mean that each model has a different resonant frequency (the one it sounds best at) and generally, if you're using 2 drivers of the same type (say 12") but different models then the resonant frequencies are often too close to make a difference.

Basically what you'll get is a slight increase in the overall feel of the bass where the new resonant frequence of the new driver is, but the different frequency responses of the speakers won't be complimentary. Best to use the same type/brand of driver.

Oh, another nifty trick, in order to increase cabin SPL, use a vented/ported box as Ruchi said, but run the port into the cabin, through the parcel shelf. What you'll in effect be creating is a dual bandpass isobaric setup (because you'll have two sealed chambers separated by the drivers) they take a little tuning, but the boost in bass because of the physics of it are worth it.

ruchi · Post by **ruchi** » Sun Feb 22, 2004 3:05 pm

hey, nice "nifty trick" there Rudi. I hadn't thought of that.

GPXXX · Post by **GPXXX** » Mon Feb 23, 2004 11:01 pm

errr ruchi man, u lost me after the word "something" at the end of the 1st paragraph LoL... reckon you can keep it simple in english, dude?

FTO338 · Post by **FTO338** » Mon Feb 23, 2004 11:09 pm

What is english? i only speak engolishhhhhhh

me no understand more then 2 sentencessssssss!!!

ruchi · Post by **ruchi** » Mon Feb 23, 2004 11:14 pm

I give up!

Take it to a professional and pay lots of $$$

Short enough for you?

FTO338 · Post by **FTO338** » Mon Feb 23, 2004 11:18 pm

ruchi wrote:I give up!

Take it to a professional and pay lots of $$$

Short enough for you?

Is that for mikey or me????

GPXXX · Post by **GPXXX** » Mon Feb 23, 2004 11:24 pm

oh what the hell, the more the merrier... this thread is having me laughing in tears LoLz..!!

kev you shitstirrer you hahaha....

ruchi dude, done take him seriously... and yerrr, keep it short, simple and sweet

thanks for your help... now i actually have some decent bedtime stories to read (a nice 'refreshing change' compared to my Ralph and FHM collection haha)

FTO338 · Post by **FTO338** » Mon Feb 23, 2004 11:28 pm

mikey we don't want to know about "what makes u excited before bed"

DZYRME · Post by **DZYRME** » Mon Feb 23, 2004 11:31 pm

**** Boing!!!!**** Can you feel the tension?????

GPXXX · Post by **GPXXX** » Mon Feb 23, 2004 11:34 pm

mmmm.... angelina jolie.....

i know what you're thinking brendan - hand off your pants now boy..!!

DZYRME · Post by **DZYRME** » Mon Feb 23, 2004 11:39 pm

There is no need for me to put my hands on my pants.. Unlike some!!!

Cough Cough "Mikey"

Post by **Supplanter** » Mon Feb 23, 2004 11:41 pm

"Dear Penthouse,

I never thought these letters were real, but one day I was browsing a car club forum on the internet when..."

mrdj1234 · Post by **mrdj1234** » Tue Feb 24, 2004 9:31 pm

well..... this thread did start with a question about 12"ers