Velodyne Acoustics SC-IW User Manual
SC-IW
(In-Wall)
Subwoofer
SubContractorTMSeries
INSTALLATION
MANUAL
Caution!
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SC-IW Installation Manual
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Attention!
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SC-IW Installation Manual
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Vorsicht!
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SC-IW Installation Manual
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Attenzione!
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SC-IW Installation Manual
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Table of Contents
P
roduct Overview.................................................................................................1
- Driver Technology ...........................................................................................1
- Cabinet Technology .........................................................................................1
Installation Overview .............................................................................................3
New Construction Installation - Standard Grille .........................................................4
New Construction Installation - Designer Grille .......................................................15
Retro-Fit Installation - Designer Grille ....................................................................25
Retro-Fit Installation - Standard Grille ....................................................................38
Other Velodyne Subwoofer Products .....................................................................53
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Product Overview
T
he SC-IW (In-Wall) subwoofer can be installed in a variety of locations and positions in any given
installation. Although this product is extremely versatile and flexible in its uses, it has been
specifically designed for two major applications - New Construction Installations and Retro-Fit
Installations in structures made of traditional 2x4 studs with 16 inch spacing, on-center.
This document provides the detailed process for properly installing the SC-IW into a wall. The
SC-IW is designed to be powered by the SC-1250 subwoofer amplifier. For maxiumum
performance, it is strongly recommended that only the SC-1250 be used to power the SC-IW.
The user’s manual for the SC-1250 subwoofer amplifier provides the details on connectivity and
proper configuration of the SC-IW after installation.
Driver Technology
The SC-IW subwoofer utilizes new and innovative patent-pending driver technology that has been
created specifically for the custom installation market. The SC-IW driver was specially designed
to maximize in-wall subwoofer performance while significantly reducing wall vibration. The driver
uses "dual tandem spider design" along with a pr
an extremely long-throw driver capable of producing very high sound pressure levels. Below is
a cross section of the SC-IW driver.
opriety neodymium motor structure providing
Cabinet Technology
Complimenting the cutting edge technology in the SC-IW driver is the cabinet, again specially
designed for in-wall installations. The SC-IW cabinet wall utilizes a propriety multilayer "sandwich"
material consisting of two 1.0 mm aluminum plates sur
fiberboard (MDF) which is laminated under high pressure to create an extremely rigid cabinet
design that has the density and performance of traditional high end cabinets utilizing 3/4 or 1
inch MDF.
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rounding 2.5 mm of medium density
SC-IW Installation Manual
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T
he SC-IW consists of two cabinets — the “driver module” and the “back box.” (a.k.a. the
“Enclosure”). Unlike other in-wall products where a back box may be optional, the SC-IW
r
equires both enclosures, unaltered, for every installation. In new construction situations, the
back box is in installed first (for example, at the framing or rough out stage), and the driver
module is installed later in the trim out stage. In retrofit situations both boxes are typically
installed together.
The driver module assembly is shown below. It uses a unique bracing system in that the driver
acts as the "internal bracing structure" for the speaker enclosure.
The in-wall back box contains internal bracing to minimize cabinet flex and wall vibration.
The driver module and the back box ar
supplied hose clamps. This linking system provides the installer the flexibility to either install the
two boxes together in the wall or separately prior to installation.
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e connected thr
ough two r
ubber conduits, sealed with
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T
he SC-IW comes in two completely separate cartons — the SC-IWBB (Back Box) and the
SC-IWDVR (Driver).
Parts included with the SC-IWBB rough install kit:
• In-wall back box - Qty 1
• Mudring for "retro fit" installation - Qty 1
• Installation manual - Qty 1
• Installation hardware
Parts included with the SC-IWDVR driver module:
• SC-IW driver module - Qty 1
• Clamp ring - Qty 2
• Standard grille - Qty 1
• Designer grille - Qty 1
• Hardware
• Installation manual - Qty 1
Installation Overview
You must first decide how the SC-IW is to be installed — whether new or retrofit installation,
and whether you are using the standard or designer grille. Remember that in all cases the grille
can be painted to match the room’s de´cor.
Consider the following information when deciding how the SC-IW will be installed.
CONSTRUCTION NEW RETROFIT
Standard Benefits: Benefits:
Grille
Designer Benefits: Benefits:
Grille
• Allows pre-installation of the back box Provides easiest servicing for the driver
at minimal risk and expense
• Provides easiest servicing for the driver
• No risk to the subwoofer during this installation
drywall/paint/finish processes
See page 4 for a description of
this installation
• Provides the smallest grille available Provides the smallest grille available
Considerations:
• Must install both back box and driver See page 25 for a description of
cabinet at frame out stage — higher risk this installation
of theft or damage to the subwoofer
• Difficult to service driver as drywall must
be removed to remove driver module
See page 38 for a description of
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See page 15 for a description of
this installation
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New Construction Installation — Standard Grille
N
ote:This installation process assumes that the installer has access to the open framed 2x4
studded wall with 16 inch spacing. In the event that the stud spacing is larger, an additional
2x4 or other spacer can be used to fill the space between the SC-IW back box and the
neighboring stud.
Step 1 - Install Mudring
Unpack the first carton (SC-IWBB) and place the contents on the floor. Remove the mudring
from the packaging. At this time the decision needs to be made about which direction the woofer
will fire (up or down) and therefore where the grille will be located on the wall. Typically the woofer
will fire downwards and the grille will be located near the floor. (Remember to consider
baseboards and other trim work that might be used on the house in this case.) Once you have
decided where to place the grille, staple the mudring to the studs as shown in figure 1.
Align mud
ring to line
on the
back box.
Figure 1: Install Mudring - The back box is used for reference position only — it is installed in the next step.
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SC-IW Installation Manual
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tep 2 - Install Back Box
O
nce the mudring is stapled into place, the back box should be installed using eight of the phillips
drive flat head screws included in the package. When installing the back box, the mudring
should be aligned to the white line on the cabinet. Once the mudring and the back box are
aligned, install the back box as shown.
Figure 2: Install Back Box
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SC-IW Installation Manual
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tep 3 - Route Wire
R
oute the wire from the location where the electronics gear is located to where the SC-IW will
be. There is "extra space" between the studs and the back box in the event that the wire has
to pass along the side of the back box to the driver module.
Figure 3: Route Wire
Step 4 - Cover Rubber Couplings
If the installation is not going to be finished right away, Velodyne recommends "taping" or
otherwise “covering” the two connecting tubes to prevent paint, drywall and/or foreign objects
from entering the back box.
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SC-IW Installation Manual
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tep 5 - Finish Wall
T
he wall can now be finished in a traditional fashion utilizing the appropriate drywall thickness,
standard texturing and finishing methods. Be sure to advise the "finishing” contractors that they
are to drywall up to the edge of the mudring, as the mudring is the place holder for the
installation of the driver module and standard grille.
e 4: Finish Wall
Figur
Note: Steps 6 through 14 presume that you have obtained and are ready to install the
-IWDVR (In-W
SC
Step 6 - Verify Drywall was Properly Installed
Once the wall is finished, the installer must revisit the installation site and verify that the
contractors have properly used the mudring as their guide leaving an opening that is
oximately 16 1/2” x 13 1/4”.
appr
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all Driver Module).
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tep 7 - Remove Mudring
A
t this point, the mudring can be removed. It should be easily removed by "pulling it through"
the drywall opening. After it is removed, discard.
Figure 5: Remove Mudring
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SC-IW Installation Manual
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tep 8 - Place Clamp Rings on Driver Module
R
emove the two clamp rings from the packaging and place a clamp ring onto each of the
bottom edges of the tubes.
Note: The position of the clamp ring is critical. Make sure that the screw section of the ring
is on either side of the tube and not on the front or the back. Please see picture below.
Screw must
face outward
Figure 6: Clamp Ring Placement
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tep 9 - Install Driver Module
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nsert the driver module assembly through the opening left in the wall by the mudring and slide
the plastic tubes onto the two connection tubes The connection tubes should slide all the way
down onto the surface of the driver module assembly. Once the tubes are flush with the driver
module, firmly tighten the two clamp rings to seal the rubber coupling to the plastic tube.
Note: The silicon rubber tubes should slide over the tubes protruding from the driver module
and the clamp rings should slide over the silicon rubber tubes.
Figure 7: Driver Module Installation
Note: It is critical that a good air seal be achieved between the back box and the driver module.
Be sure to properly tighten all clamps. Test the seal by listening to the connection with test
audio material after the install is complete.
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SC-IW Installation Manual
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tep 10 - Remove Metal Grille
O
btain the standard grille with integrated scoop and remove the metal grille insert, as shown,
in the picture below.
Figure 8: Metal Grille Insert Removal
Note: The grille can be painted to match the de´cor. The supplied paint mask can be used to
paint the grille frame while the metal grille insert can be painted separately.
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tep 11 - Install Grille Frame
I
nstall the plastic grille onto the driver module using the four included machine screws. The
grille hardware should easily be installed into the side of the cabinet. Tighten using the supplied
allen wrench.
Figure 9: Grille Frame Installation
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