I have 2 Alpine twelves and i dont have them installed. I am going to install them in the well. I am curious of everyones opinion. whats recomended? please if possibe, include dimensions pics and advice.

 

i will tell you right now, everyone here is gonna tell you that the plates suck and don't even compare to a sealed box. you can buy a premade one like the one below that i had before. fits right in the well, and is perfect for 2 12's. cost around $100-$150. i've seen them on ebay for $70 though. get a sealed box though, don't even waist your time with a plate. not to mention you could damage your subs if they aren't designed for free air installation. oh, and don't do what i did, make sure nothing is visible from the outside, otherwise you're just asking for it to be stolen.

 

I had a plate set up with 2 12in fosgates and it flat rocked. I have had good experiences with the plate. I would suggest free air speakers with it.

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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...

 

Plates suck.

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The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

I like your answer Jim



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www.thirdgenfbody.com - Leading the F-body into a 5th generation

85 IROC-Z
305 TPI
Bone Stock
Dead for the winter

"Their's nuthing like the sound of a small block chevy and a bass thumping sound system in the morning" - me

 

I've explained my position on plates so many times that it makes me dizzy thinking about it. Everybody knows how I feel, so when the question gets asked again, I just give the condensed version.

------------------
The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

Most people,(plate people) haven't really heard good bass. They might hear my one 10" bazooka and cover there ears cause "there's soooooooo much bass!!!!!!!!!!!!!" When they have a plate with two 12"s. I don't know though, so, uh, no offense to the plate people!!

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'82 Firebird, dead stock, 9 bolt disc rear, over 200,000 miles and still going strong, more to come...

 

Hey where exactly could you get the well box for 100-150$? Right now i got 2 10's in a dual bandpass in my backseat, its sounds excellent but I really would like my backseat again and I always thought those boxes cost a good penny.. thanks in advance..


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1991 Camaro Z28
350 TPI, Edelbrock Headers, Edelbrock Intake Runners, Flowmaster Muffler, Hypertech Power Chip (160 Deg Thermo), K&N Air Filter
Q-Logic Dual 10" Bandpass Subwoofer Enclosure
2 10" MTX Thunder 7000 Subwoofers
Rockford 250a2 Amplifier
Infinity Kappa 4x6" plate & 6x9's
Visit my website/see pics at: http://slayer6669.homestead.com

 

an audio place by my house sold me a box for 4 tens for around 150 and it rocks with my 4 jl 10w0's backed by a punch400.4 e-mail me for pics

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92 camaro 25th anniversarry polo green with 2 gold stripes stock 305 tbi

89 camaro
white
92 ground effects
cowl induction hood
tinted windows
accell plug wires
K@N filter
305 from 92 camaro
carburated
bored .030
flat top pistons
larger valves
zz4 cam
heads shaved

 

I've got the plate... $40 from JC Whitney, and I dropped two Pioneer free-air subs into it. It's enough to beat out my friends systems, and get compliments left & right. Even my supplier said he hadn't heard a free-air system sound that good. So, to each their own!

I wouldn't be as extreme to say that plates suck, though. Simply put- they're not as good as real box. They are lighter, though!

You can find a hatch box for $138 from here, but don't buy the plate from them- get it from JC Whitney's.
http://www.tune-town.com/Installatio.../Camaro_TA.asp


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Anyone know if they make bandpass boxes for the rear hatch area? I really like the sound of a bandpass over sealed.. If so do they come in dual 12"? also where could i look for it.. thanks

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1991 Camaro Z28
350 TPI, Edelbrock Headers, Edelbrock Intake Runners, Flowmaster Muffler, Hypertech Power Chip (160 Deg Thermo), K&N Air Filter
Q-Logic Dual 10" Bandpass Subwoofer Enclosure
2 10" MTX Thunder 7000 Subwoofers
Rockford 250a2 Amplifier
Infinity Kappa 4x6" plate & 6x9's
Visit my website/see pics at: http://slayer6669.homestead.com

 

i would go with a box, WITHOUT a doubt. they sound so much better. just make sure that if you make one that you make it to the right airspace and all that crap. here is a pic of my old system with a sealed 1.0 cu.ft. airspace for one 12...



sorry though...i dont know the dimensions.

-brian

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1991 Camaro RS - Ultra Blue Metallic, T-Tops
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GM 350 HO Crate Engine - Vortec Heads, Edelbrock Performer Vortec Intake, Holley 670 CFM Throttle Body, Open Air Cleaner w/14"x3" K&N, SLP 1 3/4" Stainless Headers, Edelbrock Victor Series Water Pump, Accell Superstock Wires, Cap, and Rotor, MSD Blaster Coil, Hypertech Fan Switch & Thermomaster Chip, AC Delco Rapidfires, 3" Cat Back, Flowmaster 40 Series Muffler

700R4 - 2,400 Stall Converter, Vette Servo, Shift Kit, B&M Super Cooler

Brian's 1991 RS
Central NY F-Body Association
Join the Third Generation F-Body TBI Web Ring
z28boy@twcny.rr.com IM name: Z28 Boy

 

Fellas,

What is wrong with a "plate" as yall call it. It is actually called a baffle board. I am an MECP certified installer and I have an 89' Firebird with 3 MTX 12's in a baffle board or plate as you all call it. These subs are not free air subs people and they are hitting in the 140's. If you build your baffle board correctly it can seal very well. Of course not as well as an actual box but then where are you going to get your air space if you do build a box. I have built a box that fits in the well of my car for 2 12's. It took about 6 hours to do and a lot of trigonometry. After all of the painstaking work I came out with very little air space. Sorry guys but I gotta go with a baffle board.

 

You're hitting in the 140s with a plate? I'd believe it if I saw it. No sooner. I built a "baffle board" for my car and it fit extremely tightly, but that didn't stop the air from leaking like a seive behind the plastic panels and subsequently back into the cabin at the top of the panels. My bass output sucked, and it was very sloppy sounding. My friend's single 10" tube sounded far better and hit much harder. I hit about 110dB with 2 12s, and now with the same 2 12s in a box, I'm getting 141, which is very loud for 2 12s. I can't possibly imagine a plate providing 140 even with a dozen subs. Plus, I don't see where there is room for 3 12's on a plate. There isn't room to evenly space them across because there's only about 10" or 11" of width at the center of the plate.

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Oh, and as long as we're providing quallifications, I'm an MECP certified installer as well as a certified IASCA judge and I work in car audio retail and have also installed professionally for about 5 years.

------------------
The IROC Homepage
<A HREF="http://www.rit.edu/~jli4307/camaro" TARGET=_blank>
View the restoration of an 85 IROC</A>
"I didn't know a bored out Ford could go so slow" -Shenandoah

 

where exactly was the mic placed on this "baffle board" 140 db run? inside the box? In someone elses car? It just sounds extremely unlikely to me...

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'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

Coming Soon...
Hmmm...Perhaps a new bird...pro street????

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

Hey guys, don't give him that hard of a time, maybe he messed up his trigonometry when he was figuring up his SPL.. Thats the only explanation I can come up with.

 

Maybe he sealed the well, too? Man, that would be a pain! I had enough of a problem putting little strips of Dynomax all over the back panels (where they met each other) to get rid of some vibrations... sealing the whole thing makes me cringe in back pain.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

I agree w/ Jim, Plates SUCK. I have NEVER heard a system w/ plates that sounded good. Check the local car audio shops, they should be able to help you find a box that will work for your subs, and your car.
Tim