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Re xxx 15 or ???

 

Silver Member
Username: John253a

Aust.

Post Number: 102
Registered: May-11
i have 4.3 cuft including sub and port (if i use 3/4")
looking to run 1200wrms

any susgestions on port tuning, normaly i tune around 37hz

this is for a daily driver
 

Platinum Member
Username: Rovin

1 15 = 153 DBs ...Trinidad & T...

Post Number: 17224
Registered: Jul-05
with such a sub why tune so high

shud be more like very low 30s ...
 

Moderator
Username: Admin

Post Number: 10978
Registered: Dec-03
Bumping up, because there was a date issue on the above post.
 

Gold Member
Username: Joe1234

Post Number: 1308
Registered: May-09
John I thought you were after a 4th order.

And the re xxx 15 is recommended for 4 cubic feet and 33Hz tuning.

That monster sub needs a tough box.
 

Silver Member
Username: John253a

Aust.

Post Number: 104
Registered: May-11
done some sums
2.9 cuft box
1.0 cuft port
0.3 cuft sub
1" mdf

port 12"x12"x12" tune to 29hz

sound about right

 

Silver Member
Username: John253a

Aust.

Post Number: 105
Registered: May-11
joe
sold the truck so no need for 4th order
got myself and hsv e3
yous call it a pontaic g8 on steroids
http://www.hsv.com.au/e3/GTS/
 

Silver Member
Username: John253a

Aust.

Post Number: 106
Registered: May-11
Upload
 

Silver Member
Username: John253a

Aust.

Post Number: 110
Registered: May-11
if i tuned to 35 with
12x12x8 port ill get around 3cuft
 

Gold Member
Username: Joe1234

Post Number: 1310
Registered: May-09
I did a box for a RE XXX 15" recently, it meets Re Audio spec, take a look:

Enclosure Specifications:

Fb = 33 Hz
Vb = 4.013 ft^3

External Height = 16.5 in
External Width = 35.75 in
External Depth = 20.5 in

Port Width = 4 in

Cut Sheet List:

* All Dimensions in Inches.
* Wood Thickness is 3/4 for all Parts.

External Enclosure Parts:

2 x Front & Back (3 parts) = 35 3/4 x 16 1/2

Left & Right Sides = 18 1/4 x 15

Top & Bottom = 35 3/4 x 18 1/4

L Port Internal Assembly Parts:

Front to Back = 14 1/4 x 15
Extension = 8 1/4 x 15


Upload
 

Silver Member
Username: John253a

Aust.

Post Number: 111
Registered: May-11
So port length is
15x4x26"long
Ill run it throught winisd and see how close it is to what i can fit

I can go out a bit more on box but i still want a box
I work your out to be close to 5.6cuft no port/sub
So my 4.3 is a bit shy

Any recomendations on port size for my odd shaped box

Unless i run port accross front and out front i cant go bigher then 14" high and 14" long width is no ploblem


It would like going in 4" and accross 20" and back again 8" and 15" high with the opening at front
An s shaped port

Ill draw it up when i finish work and show you
 

Gold Member
Username: Joe1234

Post Number: 1313
Registered: May-09
WinISD can do square ports but slot ports require end correction calculations in most cases.

The box I left you has 4 cubic feet of internal volume not 5.6.

Does that box you are planning on need to be that shape?
 

Silver Member
Username: John253a

Aust.

Post Number: 114
Registered: May-11
yes it does to fit behind back seat and under back parcel shelf,
if i go out any further i wont be able to access batteries and spare tyre as the factory battery is located in rear wheel arch well inside boot
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