Dual 8" Subwoofer Box

[jpctln]

Subwoofer - Update: 10" Bought

I've been thinking about buying a pair of Rockford Fosgate RFP3208 HE2 8" subs to put in the hatch, but I can't find a dual 8" box anywhere to fit my application. First of all, what do you think about Rockford equipment? Second of all, would something along the lines of this be an ideal amp? Now back to the topic, does anyone know where I can go about finding a dual 8" box? Making it myself is always an option too, but I know there's more to it than just nailing wood together. Let me know what you think, thanks.

 

[MyEarsHurt]

First off, that amp is okay for that setup, but I dont know what the subs are rated, in terms of watts. If they are 150 or under then thats okay, if they are higher, like 200-400 then I would say get a higher rated amp. I had that amp once, I was going to use it in an old setup but I got rid of it cause it wasnt powerful enough for me. Rockford equipment is pretty good, top 10 for sure.

As for the sub box, well it really is just wood and nails and liquid nail for a basic sealed box. If you dont want any crazy designs, no bandbass, and no fiberglassing, then its easy. Just get a sheet of 1/2 inch, or 3/4 inch MDF, a lot of long wood screws, and a few tubes of liquid nail, the heavy duty one. Figure out how many cubic feet you need per sub, and then just make the box big enough so that each sub has the right amount of air to push around. For example, if you have a sub that requires 1 cubic feet of air in a sealed box, then you just make a box 1 ft tall, 1 ft long, and 1 ft deep. Just use the old geometry formula Volume=length x width x height. Screw everything together, cut the holes to fit the subs, and liquid glue all the sides on the inside so that its sealed. You will need to run the speaker wire through a small hole in the box, and then seal the hole up. Then just carpet the whole thing, or use vinyl or paint it, whatever floats your boat.

Making your own box is not only fun, its a lot cheaper then buying a box from somewhere, it will fit perfect because you designed it, it will be more durable, and it doesnt have to be gray or black carpet like every other box in the world. Ask if you need any help.

 

[Infinity]

If'n you're dead set on 8" woofers, check into Adire Kodas, Elemental e8a's (discontinued), RE 8's, TangBand, JL8w7 ($$$$$$chaching$$$$$), or maybe even Kicker l5's or 7's. All those can be had for a better price (save for the w7 and L7), and most will outperform the Rockfords without hesitation. With woofers that small, I'd suggest building a ported enclosure and tune to about 35hz. This will give extra oomph to the lower end of their capabilities, which will be seriously needed in a Stang. Just slightly more difficult than the box above (simply add a PVC pipe to it).

 

[jpctln]

Now I've been thinking I'd just go with one 8" driver. It seems skimpy, but I figure if I get a good sub along with a quality box, It'd be enough for me. I don't want to be heard 10 blocks away, that's not important to me.

With that being said, what about this one...

Rockford HX2 RFD2208 DVC rated at 400w RMS. Also, when will 8" Koda's be available and where can I buy them from? That JL is way too expensive for me, I'd like to keep the price under $100 for the sub.

 

[GTPhreak]

I don't think you will be happy with a 8" driver. I listen to music that demands mostly sound quality over output, and even a single 10" in its recommended enclosure is slightly lacking.

 

[jpctln]

Lacking in quality or output?

 

[GTPhreak]

very nice quality. It is an Infinity Perfect 10.1D in a 1cf enclosure ported to 32Hz with appx 400WRMS running into it.

 

[jpctln]

Hmm I think I might go with the 10" version of the HX2 I posted above...It's a pretty old model, but it seems like it was top of the line back in the day and everything I've read about it so far has been pretty good. It's rated at 500w RMS at 4ohm x 2 voice coil, so would a mono amp that runs 300w at 2ohm be powerful enough? A dual voice coil 4ohm sub = 2ohms through the amp right? Let me know what you think of this setup so far.

 

[jpctln]

Well I ended up getting the 10" Rockford and a 350w amp. It punches really hard, and I don't think I could be happier with it. Also, I got an MDF box that's designed to go behind a pickup truck seat, so the wedge shape would lay down on its back and fit under that cargo cover. I also like how it's covered with the black and blends in with the carpet.

There's a StingPro Xpress or something offbrand $30 digital capacitor right there too, and it's been great so far. I got this stuff mostly because I could get it really cheap on eBay. Thanks a bunch for all your suggestions though.

 

[Cobain03]

or..if your cheap like me....walmart sells 8 inch subs rated at 200 watts for 20 bux,,,and boxes for 9 dollars ...thats 30 bux and maybe say 10 to 15 for wire and your done...thats just my 2 cents worth

 

[jpctln]

or..if your cheap like me....walmart sells 8 inch subs rated at 200 watts for 20 bux,,,and boxes for 9 dollars ...thats 30 bux and maybe say 10 to 15 for wire and your done...thats just my 2 cents worth

Hah...and the amp?