Profile BX12 Manuel D’Utilisation

RODUCT

 

SPECIFICATIONS

Free Air Resonance.

(FS)

32

Total Q of driver @ FS including all resistance's.

(Qts)

.67

Q of driver @ FS including non electrical resistance only.

(Qms)

7.02

Q of driver @ FS including electrical resistance only.

(Qes)

.73

The driver's compliance expressed as an equivalent volume
of air (Cubic Ft.).

(Vas)

4.14

The driver's linear displacement (inches).

(Xmax)

.23

The DC resistance of the driver's voice coil (ohms).

(Re)

3.6

Power rating of driver.

(W)

250

The driver's voice coil inductance (millihenries).

(Le)

.8

The drivers sensitivity (dB).

(Sens)

92 

Mounting Depth.

(Inch)

5.25

ALCULATING ENCLOSURES

It is difficult to give exact box dimensions that are universal for all cars and trucks. 
It is for this reason that you must be able to calculate the space in which you have 
available in order to achieve the proper air volume required.  It is recommended to 
build your enclosure from 3/4” thick MDF (medium density fiberboard). Make sure 
the enclosure is sealed air tight.

1.) To calculate box volume, measure the outside Width x Height x Depth of the 

enclosure. Example 12” x 14” x 9” = 1512”.

2.) Next you must convert cubic inches into cubic feet. To do this, you must divide 

the cubic inch total by 1728”. Example 1512    1728 = .875 Cubic feet

1.) To calculate the internal (net) volume of the above box you must first multiply 

the thickness of the wood you are using by Two (2). Example 3/4” x 2 = 1.5”. 

2.) Next subtract 1.5 from each of the outside measurements of the box.

Width

Height

Depth

12-1.5=10.5

14 -1.5 = 12.5

9 -1.5 = 7.5

3.) Multiply the new totals (H x W x D) Example: 10.5 x 12.5 x 7.5 = 984.375

4.) Next you must convert cubic inches into cubic feet. To do this, you must 

divide the cubic inch total by 1728” Example 984.375   1728 = .5696 Cubic 
feet.