3
SS-10B
Vented box 1.32 ft /37 liters
Tuned at 32 Hz
3”
o
XS-10FA
SW-10FA
Sealed box 1.1 ft /31 liters
3
SS-10B
Sealed box 0.85 ft /24 liters
3
The
SPL marine subwoofer have been specifically engineered to produce outstanding results in both small sealed
enclosures and vented enclosures.
WET SOUNDS
As a rule, sealed enclosures provide better transient bass response than their vented counterparts, although the
vented enclosures generally provide more deep bass. However, both enclosure types will work in any situation.
This enclosure is made up of a totally closed, air-tight box. This type of enclosure gives excellent, tight bass response, as well as
providing an effective control of loudspeaker excursion, maintaining it within reasonable limits and generally providing lower distortion and very high
volume levels. If you build your own enclosure,
recommends that you glue and screw all joints using enough adhesive to ensure
that all joints are air-tight.
WET SOUNDS
SEALED ENCLOSURES
Vented enclosures are not air-tight and incorporate an additional opening known as a port or vent, which is generally fabricated from
either plastic or cardboard tubing. The port augments the sound coming out of the woofer and is in most cases capable of going lower in frequency
than the same woofer in a sealed box. Even though vented enclosures are not air-tight, you should follow the same procedure as with sealed boxes
and glue and screw together all joints. Bellow you will find drawings for enclosures specifically designed for
Marine subwoofer . The
dimensions shown in drawings (already taking in account the volume occupied by the subwoofer) are intended as a guideline and specific
dimensions (HxWxD) may be used provided the internal volume of the enclosure is maintained.
In the special case of SEALED enclosures,
volumes greater or smaller than specified in the table can be chosen, with different results. Smaller enclosures lead to a more enhanced response
and higher power handling whereas larger ones exhibit better transient and more extended response.
WET SOUNDS
VENTED ENCLOSURES
INSTALLATION - SEALED AND VENTED ENCLOSURES
Sealed box 1.18 ft /33 liters
3
XS-12
14”
3
XS-12
Vented box 1.64 ft /46 liters
Tuned at 26 Hz
3”
o
17”
14”
12-
13-
13-
13-
1/2”
1/2”
1/2”
1/2”
13”
12”
12-
16-
13-
14”
13-
14-
15”
16”
1/2”
3/4”
1/2”
1/2”
½”
For best performance the walls of the enclosure should be rigid and not vibrate as a result of the internal pressures generated
by the loudspeakers.
recommends constructing enclosures from a marine grade plywood like Birch with a minimum
thickness of 3/4”. In larger enclosures over 1 cubic foot, internal bracing that joins opposite walls can be incorporated and the final enclosure
should be as rigid as possible. All joints should be glued and fastened with screws. Additionally, internal joints can be covered with a small
bead of silicone adhesive to ensure that the enclosure is completely air-tight. Drivers should be fastened to the enclosure with self-threading
screws with adequate length and diameter, utilizing all the mounting holes in the frame. To avoid air leakage, a foam rubber gasket or similar
sealing method should be applied between the loudspeaker and the enclosure. The external surface of the enclosure may be painted or
fabric-covered, to suit the consumer.
Since low frequency sounds are not directional, subwoofer enclosures can generally be placed
anywhere within the boat, without compromising stereo imaging. However, different placement locations of subwoofer enclosures can
sometimes influence the overall quality of bass/midbass response, so you may wish to experiment with various mounting locations before
permanently mounting the woofer.
WET SOUNDS
ENCLOSURE CONSTRUCTION
SS-10B
o
o
o
o
o
(246.0mm)
(6.3mm)
(6.3mm)
(6.3mm)
9-
9-
11-
9-
(235.0mm)
60°
HOLE TEMPLATE
XS-10FA
SW-10FA
o
o
(256.0mm)
10”
(240.0mm)
60°
XS 12
12”
(286.0mm)
(300.0mm)
45°
o
o
1/4”
1/2”
1/4”
1/4”
1/4”
1/4”
11/16”
