Hifonics BXS8D4 Quick Start And Installation Manual - Page 2
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Congratulations on your choice of a Hifonics subwoofer.
This "Quick Start Installation" guide is meant to help you
"hook up" and play music.
CAUTION
Always consider consulting a professional audio installer
before installing new subwoofers. High power audio systems
have the ability create sound levels above 130dB. Extended
exposure to high sound pressure levels can cause hearing
damage.
Always run any new wiring through safe areas that wont
interfere with the normal operation of the vehicle.
Subwoofer dimensions
A
C
in(mm)
A
B
8.43"(214)
2.77"(70)
7.17"(182)
BXS8D4
BXS10D4 10.31"(262)
2.93"(74)
9.06"(230)
BXS12D4 12.28"(312)
3.00"(76)
10.59"(269)
Before you start
It's a good idea to confirm that you have purchased the
correct size subwoofers to fit your vehicle. If you have any
reservations about being able to complete the installation
yourself, we recommend contacting a professional. Be careful
as you go. Always disconnect the negative battery terminal
before starting any electrical work on the vehicle.
Enclosure types
Sealed
Sealed enclosures offer a range of performance
profiles depending on the internal air volume.
Larger enclosures will have a smoother more
extended response while a small enclosure
will have increased output in a more focused
frequency range. Sealed enclosures are the
simplest to construct but do require that the box
be completely air tight.
Vented
Vented designs are NOT recommended. This
subwoofer is designed to perform in small
sealed enclosures.
D
Volume calculation
B
The internal volume of the
enclosure must be determined
to insure proper performance.
Simply measure height, width and
depth of enclosure you intend
to build. Subtract the material
thickness. Multiply these numbers
and divide by 1728 to get the
volume in cubic feet.
For enclosures with an angled
panel, measure the larger and
smaller depths, add these
together and divide by two. Use
C
D
this averaged depth.
0.57"(14.4)
0.67"(17)
0.96"(24)
Enclosure
H x W x D
Volume
1728
D1 + D2
D
2
Recommended enclosures
Rectangular
BXS8D4 BXS10D4 BXS12D4
12.5"
13"
14.5"
Height
12.5"
13"
14.5"
Width
9.0"
10"
10.25"
Depth
0.5 ft
0.65 ft
0.75 ft
Vb
3
3
3
46 Hz
42 Hz
40 Hz
F3
.866
.959
1.10
Qtc
Angled
BXS8D4 BXS10D4 BXS12D4
12.5"
13.5"
14.5"
Height
17.5"
18.5"
19.5"
Width
5.5"
6.0"
6.0"
Depth 1
7.5"
8.0"
8.0"
Depth 2
0.5 ft
0.65 ft
0.75 ft
Vb
3
3
3
46 Hz
42 Hz
40 Hz
F3
.866
.959
1.10
Qtc
Enclosure construction
•
Use 3/4" MDF
•
Make sure the woofer mounting panel is
full width and height
•
Glue all mating surfaces
•
Use wood screws
•
Use silicone caulk on all internal joints
Learn more about subwoofers we have.