backintheday's build log > 8 solo 15"s and 2 colossus

[backintheday 1]

My UPS man is better than Santa Claus

I have some sketches done and some calculations for the boxes. I am going to do 4 cubic feet per sub sealed. This should give me the low end I am looking for. I know you diehard SPL guys are going to flame me for giving up the db gain from a ported box, but I am building this to listen to, not for the meter. I really enjoy my 15-20Hz range and ported just won't cut if for me. I am also able to squeeze this into a wall behind the middle seat leaving me with a very large cabin that should play the low lows well without having to open up the windows.

I'll keep posting pics as this progresses. I'm headed out now to upgrade the suspension.

[nem 2,019]

This build is going to be painful!!

Edited May 30, 2009 by nmssd12

[bassahaulic 155]

You can get 15Hz-20Hz ported Tune LOW

Good choice for woofers, in drop in testing the 08 L5 was .4-.8 db louder then the 08 L7.

[fatjoe61682 14]

I have some sketches done and some calculations for the boxes. I am going to do 4 cubic feet per sub sealed. This should give me the low end I am looking for. I know you diehard SPL guys are going to flame me for giving up the db gain from a ported box, but I am building this to listen to, not for the meter. I really enjoy my 15-20Hz range and ported just won't cut if for me. I am also able to squeeze this into a wall behind the middle seat leaving me with a very large cabin that should play the low lows well without having to open up the windows

A 4th order designed correctly could give you what you want and gain you a couple db

[backintheday 1]

I made a little progress this weekend. I gutted the interior and got a bunch of the Dynamat in. I also started to build up the enclosures. There will be three boxes just like this across the bottom and then a box on top all that for two more 15's and then there will be 6.5s and tweets on either side in the top subs.

I am traveling out of the country all next week so there won't be much progress.

Edited June 2, 2009 by backintheday

[fearof85 0]

That shit looks like it's gonna crush the low lows. How big is that box in the last pic?

Drew

[mklett33 32]

Looks interesting man

[backintheday 1]

Here is a sketch of how the box will look when it is done.

[Notorious97200 339]

Oh my God !

That's'a a mooooooonster bassboxxx!!!!!

[mccleery3 166]

Good gawd that is gonna be freakin huge!!

[nem 2,019]

Looking pretty wild. Heading to Italy?

[Julian 641]

i like your box A LOT!

[nem 2,019]

i like your box A LOT!

I can't wait until he returns. Should see some mad progress then.

Edited June 12, 2009 by nmssd12

[Aaron Clinton 2,372]

Very interesting design, are the enclosure volumes equal?

[backintheday 1]

Well, I know that a week of vacation didn't help my build progress a lot, but it gave me a change to think through the system and the install. It also gave my van some time in the shop to get the new springs/struts, etc for the extra load.

I decided that (8) 6.5's and (8) tweeters were not going to make me happy so I just ordered another (10) 6.5s and (10) more tweeters. I will use 16 of each in the install and have a full set as spares. I also ordered a second Hi-Fonics Zeus that is 4x170 at 2 ohms to run the additional highs. While ordering parts, I got 100 feet of 0 gauge, (4) 300 amp fuses, (40) 0 gauge eyelets, 250 feet of 12 gauge speaker wire, a bunch of RCA cables and another mega pack of Dynamat Extreme.

I should be back to building tomorrow and will get pics up as often as I can.

Thank you all for you support so far, this is going to be a fun build.

To answer Denim above, the boxes are all the same volume +/- 1%, the top boxes seem smaller but actually extend down into the back top area of the lower box. You can kinda see it in the sketch above.

[Maddenkid2011 3]

Keep us updated!

[nem 2,019]

Well, I know that a week of vacation didn't help my build progress a lot, but it gave me a change to think through the system and the install. It also gave my van some time in the shop to get the new springs/struts, etc for the extra load.

I decided that (8) 6.5's and (8) tweeters were not going to make me happy so I just ordered another (10) 6.5s and (10) more tweeters. I will use 16 of each in the install and have a full set as spares. I also ordered a second Hi-Fonics Zeus that is 4x170 at 2 ohms to run the additional highs. While ordering parts, I got 100 feet of 0 gauge, (4) 300 amp fuses, (40) 0 gauge eyelets, 250 feet of 12 gauge speaker wire, a bunch of RCA cables and another mega pack of Dynamat Extreme.

I should be back to building tomorrow and will get pics up as often as I can.

Thank you all for you support so far, this is going to be a fun build.

To answer Denim above, the boxes are all the same volume +/- 1%, the top boxes seem smaller but actually extend down into the back top area of the lower box. You can kinda see it in the sketch above.

He is back and his idea of moderation is awesome.. This build is going to be insane.

[fatjoe61682 14]

Looking great so far. Keep it up. I'm waiting for that demo.

[nem 2,019]

Looking great so far. Keep it up. I'm waiting for that demo.

I am waiting for the updated pictures, he has been back for almost a week.

[SpeakerBoy 64]

Any Updates?

[backintheday 1]

Any Updates?

I made some progress on the enclosure over the holiday.

[Notorious97200 339]

OMG !

It's'tight, isn't it?

Can you still seat and drive your car?

It will be very loud!

[Aaron Clinton 2,372]

Might as well just take those seats out.

[nem 2,019]

Looking good. Looks like a lot of cuts to make that box.

[fatjoe61682 14]

Looking damn good. You are gonna wall this at the front of the box rgiht??