68 Camaro Sub--Real results needed

[tumper93]

I have searched and read every thread I could find on this but none said how the results truely were. I listen to 80-90's rock like Metallica and want sound that makes that type music sound best. The interior of the car is fully dynomated and has an aluminum devider behind the back seat that is also dynomated and sealing the cabin from the trunk. I plan to finish the trunk like many on here have. With that being said would I be better off firing the sub rearward, towards the floor with ports through the package tray, or cut the package tray and mount it pointed towards the rear glass with the box being under the package tray. The other parts of the system are RE XXX 6.5 components front and rear with US Amps amp and Alpine head unit with built in cross over etc. What is some real world results in your setup

[Rod]

I don't know anything about stereos, sorry

[overZealous1]

i have heard a rear facing sub in about the middle of the trunk will create the most spl. other than that, build a box you can rotate and move around to test and see what you like, then build a permanent box. my guess though is that you will have a hard time telling a difference.
i have a gen 2 t/a and i chose to run 2 12's and a 15" passive radiator. the passive fires up through a hole cut in the rear tray, while the 12's fire down with about 3" clearance off of floor.

[67rally]

I did two 12's facing the rear, it's plenty loud:

Sloped box to fit contour of floor:

[Chris 68]

I've just been playing with my set up the other day, I don't have a divider behind the rear seat but I have 6.5 components in the front kicks from screamin' performance and a single 12 mounted on the underside of the package tray firing down and so far it seems to be a nice versatile set up/ I'm hoping to get a final box made up in the next couple weeks and would be happy to share the plans if that's the route you want to go.

[makoshark]

I would do a single 12" JL Audio W6 or W7 or a JBL W12GTI MKII firing through the center of the package tray in an infinite baffle setup. You won't get huge SPL #'s from this setup, but it will sound far better than a sealed or ported enclosure and take half the subs RMS rating of power.

[Bmf5150]

http://i1237.photobucket.com/albums/...o/2e494497.jpg

http://i1237.photobucket.com/albums/...o/20d53d9c.jpg

http://i1237.photobucket.com/albums/...0/a9551c01.jpg

http://i1237.photobucket.com/albums/...0/c23f4e2f.jpg

Two tens, finishing inside of box with aluminum and led lights .will be see through with plexi glass

[scott_fx]

I would do a single 12" JL Audio W6 or W7 or a JBL W12GTI MKII firing through the center of the package tray in an infinite baffle setup. You won't get huge SPL #'s from this setup, but it will sound far better than a sealed or ported enclosure and take half the subs RMS rating of power.

I never thought that the w7 would be a good IB speaker, doesn't seem like it would have the control and needs some help (i.e. air spring) from the box.

A few things the OP should think about doing is putting closed cell foam over the dynamat. The mat will only dampen vibration, but the closed cell foam will absorb road noise. Another big thing in classic cars is to get some acoustical foam from parts express and stuff it up under the dash.

I know this doesn't answer your question. But really playing with placement is the best way to figure out what works best for YOUR car. It is a general rule of thumb that rear facing will create a longer distance for the soundwave (has to bounce off the back wall and double back), but I've heard that facing up into the cabin will get better sq for bass. In my corvette that's how i installed my sub and i was VERY pleased with the result.

If you're looking for sub recommendations too. I can't speak more highly about my tc-sounds tc9. they don't produce that one anymore but they do have some new subs that are getting amazing reviews. I listen to a whole variety of music. from Dire Straits to TOOL to current indie stuff (some old school rap) and the sub blended so nicely with my 7" mids. Money for nothing always put a huge smile on my face when demoing my system.

[hifi875]

Sealed enclosure with a lot of power facing the rear of the car. Ported or infinite baffle designs have their advantages but super accurate bass reproduction isn't one of them.

[hifi875]

Preferrably a JL w6 or w3. W7 is a great woofer but prolly overkill. The w3 is a amazing woofer for the money. Tight and accurate in a sealed enclosure.

[tumper93]

So just as a follow up I wanted to let others know what I ended up doing and the results. First the head unit is an Alpine CDA-7897 connected to a US Amps AX5600 five channel amp, front speakers are in Screaming Performance kicks with RE 6.5" coaxial components with light poly fill, rears are RE XXX 6'5" components, 10" MB Quart shallow mount sub in heavy poly filled and sealed box that faces the rear window. The entire inside of the car has dynomat and has a rear wall seperating the trunk from the interior. The output of this setup is unreal to say the least. You can hear every little sound and crank it to make your ears bleed and heart beat out of your chest. This performance far exceeded what my expectations were. To listen to old heavy metal is like being at a concert. I find myself going out there just to listen to music, kinda cool. THis is a real world setup that worked for me and I wouldn't change anything,

[scott_fx]

Awesome! And congrats on the install. Would love some pics!

[ROBS6T8]

When you say "poly filled", what exactly are you talking about? Thanks.

[tumper93]

It is stuffing like inside a pillow that allows the speakers to be more efficient in a smaller space. In the sub box it was suggested to allow use of a smaller box without sacrificing sound. The output of this setup is crazy in my opinion. No it isn't for the hip hop crowd but for the heavy metal type music it leaves nothing to be desired.

[ROBS6T8]

Thank you Erik. I almost have the same with a 12 JL sub facing upward towards the rear window.

[Bmf5150]

http://www.shopfesler.com/camaro-sub...its-1967-1969/

[PT Sportwagon]

By using poly fill ( available in the crafts section at walmart) it tricks the speaker into thinking it is in a larger box. I have used it in all my boxes. I wouldn't use any JL sub in a infinite baffle set up but the IB4 series which is made for IB. For the best sound as Scott said above. build a box that is moveable and try it in different locations the build a permanent one.

Tim