28 replies to this topic

[Lunchbox.inc]

DD Phail, on 08 December 2011 - 11:18 PM, said:

OK, yeah the box comes a little small, especially when designing for DD's, they want the port area to be 16 inches per cube, you gotta make the boxes huge.

Make the port 90mm wide, 500mm (501 if you wanna be exact). There should be a 45mm gap between each port end, and the back of the box.

Double layer the front baffle, of course use 18mm for the box. If you want, add in a sheet of 18mm in the exact center of the port, and round the port ends and corner.

how long are those rear chamber ports sir...? and tuning front/rear...?


EDIT: wait i'm a douche!! i immediately thought it was a parallel baffled 6th order... ignore my above post, i was wondering how you could fit a sub thru the 90mm front chamber hahahaha!!!

Edited by Lunchbox.inc, 08 December 2011 - 11:39 PM.

[RAD]

It's a normal slot port box

I thought 6th order, but for 3510's, there's not enough box size.

[Lunchbox.inc]

as above, i really am a douche lol, when i saw it i thought it was a 6th order, but with some further investigation it would be interesting trying to fit a sub down the 90mm frontchamberwhichisreallytheport...

[RAD]

Too much late night games and not enough sleep make Steve something something...

[romano.inc]

Thanks heaps for that mate much appreciated
just to double check because you didnt specify but the height is 310mm yeah?
Also should i add some 45's in the corners? if so how wide should they be?

And yeah im gonna attempt to have massive flares on the front opening

Edit: sorry one more question haha.. does the 600depth include the double baffle or do i need to add it to make it 618mm in total?

Edited by romano.inc, 09 December 2011 - 10:27 AM.

[RAD]

Build the box to the external dimensions you provided: 310high, 850wide, 600deep.

Definately round any port edges if you can, as for the bends, if you can keep them the exact width through the bend that's a bonus, but 45 'em at least.

[romano.inc]

Ok so i modelled the box on sketchup and everythings good except for one thing.

 3510 1.jpg   71.96K   0 downloads

With the port including the double baffle its length is 500mm, but theres a 82mm gap between port and box not 45mm like your original picture. So does that mean the port including the baffle in total should be 536mm so that the gap is 45mm?

Cheers

[RAD]

There should be a 45mm gap between the port and the rear wall. Overall, your depth is 600mm. Minus 18mm for rear wall is 582. 582 minus 36mm for the baffle leaves 546. Glue between layers will probably eat up 1mm, so if you make the sheets for the port 500mm, it'll leave you 45mm between the port and the back of the box.

(my assumption is, you'd make each baffle using two layers of 18mm, and then add a length of wood front to back for the port, like you have in your diagram.)

[romano.inc]

Thought so just wanted to clarify hopefully will make a start this week, thanks again mate i really appreciate all your help

[PurePain87]

Pulled up beside this down high st tonight why not bass?

Edited by PurePain87, 18 December 2011 - 11:37 AM.

[romano.inc]

haha really what time? if it was today i had mates in the car where talkin crap haha! should catch up sometime tho

[PurePain87]

umm would have been between 10 and 11am you had a few people in the car. Yuh for sure. Still going to build that other groundpounder?

[romano.inc]

yeah was getting supplies to paint my valve cover racing red so i got an extra 20kw at the wheels
na im not didnt have the spare cash to spend the cars actually for sale on ebay and im probably gonna sell the amps.. groundpounders and uni dont go well together haha

[PurePain87]

haha fair enough. Poor uni students