Atlantic Technology SUB-8, 8-SUB Owners manual

IN-BOX-8 SUB InWall Enclosure

VERY IMPORTANT NOTES:

1. The installation bracket is pre-installed in the InWall enclosure, which is designed for installation in new construc­tion. The enclosure must be installed
intended only for vertical mounting. The wall must be made from 5/8 inch or thicker wallboard. This is not only
necessary for proper mounting depth behind the drivers, but to minimize distortion created by the wall itself. Any
alternative mounting arrangements that you develop are dependent on your creativity. However, be aware that they
will take considerably more work, and generally are not recommended. In any event, you are "on your own" in any
case where you deviate from these instructions.

2. This enclosure provides the correct volume to optimize the performance of the SUB 8 InWall subwoofer module.

must

The SUB 8 module
isolation of sound for the room adjacent to the subwoofer. However, since these are true subwoofers they generate
substantial deep bass energy and there will still be significant sound energy transmitted through the house frame­work. This is an unavoidable consequence of mounting woofers in a wall.

3. The correct amount of acoustically absorbent material (foam) is pre-installed in the enclosure and should be left as
is within the enclosure. Please do not compact the material or add more damping material.

4. The enclosure is designed to fit in walls framed using 2" X 4" studs mounted on 16" centers, with wall board of at
least 5/8 inch thickness. With some modification to the stud framing, it can also be installed between studs mounted
on 24" centers. In all cases the front face of the enclosure must be kept flush with the front face of the studs. For studs
mounted on 24" centers it is not recommended to install the enclosure to a stud on one side only. Instead, frame out
from one or both studs to locate the enclosure solidly on both sides, wherever you desire within the stud cavity, and
then attach as detailed below. In an 8 foot tall cavity there will be 12 inches of empty space. We recommend installing
an extra 2" x 4" cap and foot above and below the enclosure which you glue and screw to the enclosure, and then
screw to the side studs.

it.

It's also imperative to make sure any wires running within the wall are secured in such a way to ensure that they will
not buzz or vibrate against any part of the wall. This should be checked in every stud bay in the wall, not just those
adjacent to the woofer enclosure.

be used with this enclosure for proper operation. The enclosure also provides moderate

Be sure to tell the electrician to run any AC lines above the enclosure and not to drill through

before

the wall board is applied to the front of the wall studs. This enclosure is

Instruction Manual

5. The SUB 8 woofer assemblies generate substantial vibrational energy and some of it will transfer into the wall. This
vibration may eventually loosen the wall board and create "nail pops". To minimize such occurrences we strongly
recommend that the wall board be screwed
and extending out beyond the actual enclosure bay at least to the next stud bay on either side of the enclosure) and
the enclosure face surfaces, using a powerful construction adhesive like Liquid NailsTM. Please follow all directions
when using such adhesives, particularly concerning application and ventilation.

6. Choosing the location for the subwoofer is a very important consideration. Since these are in-wall subwoofers and
can't be moved once they are installed, very careful consideration should be given to their placement. In general, the
most efficient transmission of bass energy into the room will be realized when the subwoofers are located directly
adjacent to a wall/wall/floor juncture (a corner). This will create the most reflective waves of bass sound in the room,
however it also can be the "boomiest" location in the room. Other possible location choices include:

A. Locating one woofer module in the front and one in the back of the room.
B. Locating the two woofer modules asymmetrically within the room (i.e. one in a corner, one a third of the way towards

the middle of a wall) to create different reflective (standing) wave patterns.
C. Locating one or both woofer modules on a single wall. Once again, keeping the woofers approximately one third of

the way out from a corner juncture may provide the best balance of bass impact versus boom.

343 Vanderbilt Ave. Norwood, MA 02062 781-762-6300 atlantictechnology.com

and

glued to the studs (on both the front and back sides of the enclosure

TM

IW

S

T

Atlantic Technology

010-1080-A

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Wall Shoe

INSTALLATION - PLEASE READ!!

Be sure to follow all applicable local building codes and regula-

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Run all electrical
wires above
enclosure. Be
sure they cannot
vibrate against
anything.

Screws

Glue and screw
wallboard to
studs, front and
rear face of
enclosure.

Mount resting on
the wall foot after
adding an extra
stud plate as
shown.

extra
stud

Stud

tions!

1. The shipping box has been designed to open along its entire
length. Remove the enclosure from the box by opening the box
along the marked side opening.

2. In the parts bag there are 64 - #7 two and one half inch long,
fine thread screws (Atlantic part number 100-1378).

3. Determine the woofer location(s) based upon the previous in­formation.

4. Cut two pieces of 2" x 4" measured to fit precisely between the
two side studs. These will be placed directly below and directly
above the enclosure, as shown in Fig. 1. The lower piece should
rest on the wall shoe. The top piece should sit directly on top of
the enclosure. These 2" x 4" pieces must be glued and screwed to
the top and bottom of the enclosure before it is installed in the wall
cavity.

5. Temporarily place the enclosure within the stud cavity. Keep the
front edge of the enclosure flush with the front edge of the studs.
Mark places to drill 11/64 inch mounting screw holes in the studs,
alongside the enclosure, approximately every 6 inches. Be sure
to mark for holes at the locations of the top and bottom studs you
have just mounted to the enclosure. Don't locate any holes within
1 inch of the front or rear face of the enclosure. Remove the
enclosure and drill the holes in the studs, at the marked locations.

6. Replace the enclosure within the stud cavity, once again being
careful to keep the front edge of the enclosure even with the front
edge of the studs. Be absolutely certain that it is plumb and

level because if it's not the speaker will sit crooked in the
wall, and this cannot be adjusted later. If there are any gaps

between the studs and the enclosure sides shim them and put a
screw through at that point to ensure that the studs won't vibrate
against the box.

7. Push the supplied screws through the predrilled holes and screw
them into the enclosure sides. Use care not to overtighten and
strip any of the screws.

8. Drill a hole in the stud and through the side of the enclosure for
the feed wires. This hole should line up at the approximate center
of the subwoofer module opening. After installing the audio feed
wire, caulk this hole generously with silicone construction caulk.

9. Be sure that you have eliminated all potential sources of rattling
before the wall board is applied.

10. When the wallboard is applied it should be glued to the front
and back of the enclosure as outlined above. It should also be
screwed to the front and back of the enclosure as well. We recom­mend one screw centered on each face, aligned with the side
stud mounting screws.

After the wall board is installed you may install the SUB 8 bass
module according to the directions included with the speaker.

Enclosure dimensions:
82 inches tall x 14.5 inches wide x 3.54 inches deep.
Cut out opening is 12

1/8

inch from the bottom of the box.