Profile Speaker BX12 User Manual

BX12 12” Subwoofer  
Installation Instructions / Owner's Manual  
By  
PROFILE CONSUMER ELECTRONICS, INC.  
17625 FABRICA WAY  
CERRITOS, CA 90703  
TEL: (714) 690-4949 FAX: (714) 690-4957  
WORLD WIDE WEB: WWW.PROFILEUSA.COM  
 
PRODUCT SPECIFICATIONS  
Free Air Resonance.  
(FS)  
32  
.67  
Total Q of driver @ FS including all resistance's.  
Q of driver @ FS including non electrical resistance only.  
Q of driver @ FS including electrical resistance only.  
(Qts)  
(Qms)  
(Qes)  
7.02  
.73  
The driver's compliance expressed as an equivalent volume  
of air (Cubic Ft.).  
(Vas)  
(Xmax)  
(Re)  
4.14  
.23  
3.6  
250  
.8  
The driver's linear displacement (inches).  
The DC resistance of the driver's voice coil (ohms).  
Power rating of driver.  
(W)  
The driver's voice coil inductance (millihenries).  
The drivers sensitivity (dB).  
(Le)  
(Sens)  
(Inch)  
92  
Mounting Depth.  
5.25  
CALCULATING 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  
theenclosureissealedairtight.  
CalculatingExternalVolume  
1.) To calculate box volume, measure the outside Width x Height x Depth of the  
enclosure. Example12x14x9=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  
CalculatingInternalVolume  
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.) Nextsubtract1.5fromeachoftheoutsidemeasurementsofthebox.  
Width  
Height  
Depth  
12-1.5=10.5  
14-1.5=12.5  
9-1.5=7.5  
3.) Multiplythenewtotals(HxWxD)Example:10.5x12.5x7.5=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.  
 
RECOMMENDED ENCLOSURES  
Please Note: Our suggested box volumes are given as internal air requirements  
Sealed Enclosure  
Box Volume  
* 1.25 Cu Ft.  
* Box is given as internal air volume including driver  
Displacement.  
BX12 Ampplitude RResponsee (dB/Hz)  
Sealed Ennclosure  
12  
6
F3 = 45  
0
dB  
-6  
-12  
-18  
-24  
5 Hz  
10  
50  
100  
500  
1000  
Frequuency  
Ported Enclosure  
Box Volume  
*2.0 Cu Ft.  
Port Frequency (Fb)  
Port Diameter  
Port Length  
40Hz  
4 Inches  
6.7 Inches  
* Box is given as internal air volume including port and driver displacement.  
BX12 Ampplitude RResponsee (dB/Hz)  
Ported Ennclosure  
12  
6
F3 = 35  
0
dB  
-6  
-12  
-18  
-24  
5 Hz  
10  
50  
100  
500  
1000  
Frequuency  
2000 PROFILE CONSUMER ELECTRONICS  
BAJA BX12 MANUAL 10000 REV 09/00  
 

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