Well done, Rockthebeef! Very nice job. I'd like to add that a shallow 10" is also possible as well as a down-firing enclosure for those who wish to minimize any passenger perception of the sub.

Although I am still very pleased with my down-firing SQ10 setup, I like the way you have maximized the available space under the seat. IIRC, my box is .3cf empty but only .27cf with the SQ10 installed.

 

Thanks Fred. Your enclosure sort of started it all. I ended up using a 9kv.2 because I found one for $50. If I had found an SQ10 I would have gone that route and maybe even copied your box.

Now I find I need a bigger amp. I've read some opinions that the SQ10 shouldn't really get more than 100 watts. I have no idea how true that is, but my 9kv.2 is seeing 190 watts and the amp gives up before the woofer does. On really loud/sudden bass my sub can go mute for a split second. I assume that's the amp's protection kicking in. This only happens when I push it but I tend to push it more often now. I want to go up to 250-300 watts and use a mono amp. I'm thinking Alpine MRP-M500 or the JL 250/1. I used to have a JL500/5 and it was an excellent (although huge!) amp.

 

I wonder if eD would be willing to simply remake your order for other people without us having to go through the whole explanation process again.

I saw your pic with the dimensions, but what else was involved in making sure they had all the information they needed to assemble it properly?

Maybe one of the eD reps would be willing to make a post about what it would entail since you have essentially donated your design?

Thanks for the free design btw. I still have yet to order my subs because I just havn't been able to bring myself to taking my spare out since i go on long road trips.

@Elemental Designs: What would I need to do to get this box ordered along with an amp and a subwoofer?

Also, could it be made as a 10" ?

 

edited for double-posting

 

[quote="rockthebeef"]I'm glad that some people are putting the design to use. All I sent to eD was a drawing much like the picture I posted with all the dimensions. That's all they needed. I sent the drawing and waited for a reply which took a a couple weeks (I was not in a hurry). When I did talk to them all I had to say was, "build it" and they did. I didn't explain anything to them as I expected they'd know a whole lot more than I do. All I did was wait several more weeks after that. When it came it was perfect. I would have put more care into the carpet job, but that's being really nitpicky. Chris from eD has already posted in this thread so he's aware of the design. I'm fairly certain they could build another based on this thread alone.

About that 10" sub... Did you see my reply to the guy asking if a Pioneer 10" slim sub would fit? It's kinda the same question. I honestly don't know what 10s will fit in this enclosure but if I wanted to know I would look up the specs of the woofer and just do the math.

You could modify the box too. I wouldn't go any taller, but you could go out front-to-back a couple inches either way. I would keep the width the same, with maybe another 1/4-1/2" at most. I can double check that if anybody is interested.

 

You flatter me undeservedly. All I did was take other people's ideas and throw together a cheap underseat box. IMHO, a full depth 8" is as good as or better than a shallow 10", given the right enclosure and power. I'm not so sure I buy into the 100W -max SQ10 theory. My Kenwood mono-amp is rated for 120W into 4ohm and 160W into 2ohm and IMO this 2 ohm SQ10 can defintely handle some more. Not a lot more but maybe 250-300W of clean power, especially in it's small, sealed enclosure.

For many years I've wished that stereo components lived up to their 'manufacturer-rated' spec's since it would make buying decisions a lot easier for me but it seems that they very often don't. I've seen 50W rated amps that outperform 200W rated amps. Although your compact Blaupunkt amp probably packs a nice punch for it's minimal size, I imagine that there are many similarly rated amps that would deliver more usuable power. I think you're on the right track looking for a better amp to match your new sub box. At least the hard work is already done. Swapping the amp should be easy now.

 

OK, as I had stated earlier in the thread, I was going to build a box with 0.41 cf for my eD 9kv.2 using some PVC. Well, I did but ... it didn't turn out the way I hoped. I'll post pics with the next box. The short story is that the box was too tall under the outer seat rail, the PVC was difficult to work with and the PVC offered no advantage when I started having to decrease the box height. The complexity and effort were significant (cutting semi circles to seal to the tubes was not simple).

My next design will be similar to 2 shoe boxes placed perpendicular to each other. Should be very simple to make and will provide ample volume.

 

Finally... it is done! After numbers of sleepless nights...

http://picasaweb.google.com/Toyota.S...93270329736754

I would say, the little box really surprises me by the punch that I got from it. As Rock mentions in the begining, the location is perfect for every spot in the car. I tested it in the cargo area before I put it under the seat, the front seats barely got the bass while the rear seats got hammered. I would say this is working out for me pretty good and I think Rock should get a patent and sell it on Ebay! Hahaha. I put the amp under the right rear seat where the RF amp is small enough and fit perfectly (well, I had to make a little platform for it since the tray is not perfectly flat). I would pass on the idea on a on/off switch since it doesn't shake the right front seat too bad, if my wife doesn't like it, I can turn the bass all the way down from my H/U's eq.
Rock, you rock! Thank you for sharing!

 

Nice job dyxb! It's actually a relief that somebody was able to duplicate the box. It's a pretty tight fit isn't it?

In the meantime I have a new amp on its way. I got the Alpine MRP-M500 (300 RMS watts at 4 ohms) that I think will feed the sub better. I might put the little Blaupunkt to the front stage (75 watts x2).

 

I built my second design and it fits much better. 708 ci (0.41 cf) and it could have been larger. I will start a new thread by the end of the weekend. I apologize for the teaser but my time is not my own (IOW, I'm married.) I'm posting here because if it wasn't for Rock, I would even be this far. He design was the inspiration to build mine. Thanks again Rock.

 

Alright, so I've upgraded my amplification. The 190 watt Blaupunkt is out and the 300 watt Alpine MRP-M500 is in. With the old amp I noticed the amp would go into protection mode before the woofer started to even sweat. Now it's the other way around. I was able to bottom out my sub with the Alpine (so I backed off the gain). Bass delivery is noticebly more present and much stronger. I had to cut the vent under the driver's seat like I did for the passenger side. The MRP series amps fit perfectly between the 2 'humps' in the floor. If I made a shelf I could easily mount another amp above this one. It makes me want to get the matching MRP-F300 (50 watts x4) for the door speakers. I just might do that if I sell the Blaupunkt.

 

yeah there's so much room under the seats.. my kicker 350.4 & 400.1 fit perfectly between the humps of the seats.. looks good man i like it

 

I've got one last question for you. Do you suppose your design could house a 10" sub? What adjustments, if any, would need to be made? Which ED subs (or other brands) off the top of your heads should i look at for 10" configs?

 

Basically you just have to look up the specs of the woofer you're thinking of and see if it fits in the enclosure. The measurements of the box are on page 1 - don't forget to account for the box's 3/4" thickness. I don't think many conventional 10" subs will fit because of mounting depth issues. Also make sure the basket will clear the inside corners of the box. You'll probably have to look into a slim Pioneer or eD SQ10. There may be more on the market now that I'm unaware of. Look up a few posts. I sort of answered your question from before. A few posts before that I replied to a guy asking about a 10" slim Pioneer sub.

Sorry to ask you to do some work. But if you want specifics you just have to do some math. Let us know if you find anything out. It might help somebody here. It's hard to convey in text, but I'm trying not to sound like a smartazz so please don't take this the wrong way.

I'll try to post up a drawing or something that might help, But right now I gotta get to work...

 

Yeah i totaly missed the post for the slim 10" pioneer. I've seen those subs before but never heard them and i've always had soem doubts about them

I'll do some digging, I'm sure theres something out there

 

I, too, was trying to shoehorn a 10" Pioneer slim sub into my box, but I decided against it due to volume issues. The box is only .31 cube, and Pioneer recommends about .5 cf for that one...

Actually, I just looked at their website and the TS-SW2541D starts at .35 cf. So with slight modifications, it may work. The above is one of two "1000 watt" (250 RMS) models. There is an 800w model, but strangely, they failed to post its volume recommendations.

I actually built my box out to be about .26 cf, as I eliminated the 1" step on the bottom panel and just strung it all the way across. It makes for a channel underneath the box for the air vent.

Good luck with your research, Zlog!

 

Woohoo! All built and installed. The system sounds great, once I got all the stuff working and tweaked. The 8" is plenty to fill the cabin - I had to back off the gain on my amp, as well.

Had a couple of small issues - One, the gray wire behind the HU is so damn small, my wire tap didn't even nick the insulation. I had to get my power-up signal from the power plug. The second was due to a cheap and crappy Radio Shaft terminal cup. I think I'm done with their junk.

If anyone's interested, i can get pics. But the best part is the system is totally stealth. You'd have to look REAL HARD to see anything.

Thanks, RTB!

 

Awesome! Throw your pics in the audio setup sticky.

My box is built but my sub is on backorder so I have to wait another week. Everything else ( speakers, amp ) will be here on Friday.

Can't wait!

 

been running 1- 8" box under each seat for 2 years with 2-12's in the hatch i love the set up...also have 4 -6.5s 2- 4" and 2-1' tweeters

 

can I get the org. pics? I am can't see them