REVELL I20 User manual

Revel®I20/I30
Back Box
Installation Instructions

2REVEL I20/I30 Back Box
Installation Instructions
3 Oak Park, Bedford, MA, 01730-1413 USA
Telephone: [phone]
Fax: [phone]
www.revelspeakers.com
Customer Service:
Telephone: [phone]
Sales Fax: [phone]
Service Fax: [phone]
Product Shipments
16 Progress Road
Billerica, MA 01821-5730 USA
Part No. I20: 353639-00/I30: 353617-001 | Rev 1 | 01/05
“Revel” and the Revel logo are registered trademarks of
Harman International Industries. U.S. patent numbers and
other worldwide patents issued and pending.
©2005 Harman Specialty Group.All rights reserved.
This document should not be construed as a commitment on
the part of Harman Specialty Group.The information it con-
tains is subject to change without notice. Harman Specialty
Group assumes no responsibility for errors that may appear
within this document.

3
REVEL I20/I30 Back Box
Installation Instructions
TABLE OF CONTENTS
Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
About the Back Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
I20/I30 Back Box Outer Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Obtaining Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

4REVEL I20/I30 Back Box
Installation Instructions
DOCUMENTATION CONVENTIONS
This document contains general installation instructions for the Revel I20/I30 Back Box. It is
important to read this document before attempting to use this product. Pay particular atten-
tion to safety instructions.
WARNING Calls attention to a procedure, practice, condition, or the like that, if
not correctly performed or adhered to, could result in injury or death.
Caution Calls attention to a procedure, practice, condition, or the like that, if not
correctly performed or adhered to, could result in damage to or
destruction of part or all of the product.
Note Calls attention to information that is essential to highlight.
IMPORTANT SAFETY INSTRUCTIONS
Read Before Starting Installation
•Product contains fiberglass wool.
•Disturbing the insulation in this product during installation, maintenance, or repair will
expose you to fiberglass wool. Breathing this may cause lung cancer. Fiberglass wool is
known to the State of California to cause cancer.
•Fiberglass wool may also cause respiratory, skin, and eye irritation.
•To reduce exposure to this substance or for further information, consult material safety
data sheets available from the address shown below, or contact your supervisor.
Harman Specialty Group
3 Oak Park Drive
Bedford, MA 01730

5
IMPORTANT SAFETY INSTRUCTIONS
Read Before Starting Installation
WARNING This enclosure is not listed for use in air handling plenums. Installation
of this enclosure in walls or ceilings of fire barrier rated construction
require that construction methods shall be employed in order to comply
with local building or life safety codes. Consult your local Authority
Having Jurisdiction (Building, Electrical, or Fire Safety Inspector) to
determine what acceptable construction methods will be required.
WARNING The I20 Inwall Back Box weighs 19 lbs. (8.6kg) empty, and weighs 32
lbs. (14.52kg) with an I20 speaker system installed in it. The I30 Inwall
Back Box weighs 19 lbs. (8.6kg) empty, and weighs 36 lbs. (16.3kg) with
an I30 speaker system installed in it.
ANSI/EIA 636 Recommended Loudspeaker Safety Practices, Section 16.3
recommends that the mounting system used to install the Inwall Back
Box in walls or ceilings should support the weight of the product plus at
least four times the weight of the product being installed. That means,
for an I30 installed in an Inwall Back Box, the mounting system should
be able to support at least 180 lbs. (82kg).
It is strongly recommended that the installer consult a construction pro-
fessional or a professional engineer to determine the appropriate
mounting methods to be used for each specific installation location.
REVEL I20/I30 Back Box
Installation Instructions

6REVEL I20/I30 Back Box
Installation Instructions
About the Back Box
Thank you for purchasing the Revel
I20/I30 Back Box, an optional rear enclo-
sure for the Revel I20/I30 In-Wall
Loudspeaker which provides optimum vol-
ume for woofer alignment and reduces
acoustic bleed through to rooms adjacent
to your listening area. The I20/I30 Back
Box also functions as a mounting bracket
designed to facilitate the installation of the
Revel I20/I30 In-Wall loudspeakers in new
construction or major retro-fit installations.
The back box improves sonic performance
while providing solid support for the
speaker mounting frame and baffle assem-
bly. Since the back box is installed before
the drywall is mounted, it allows the
speakers to be mounted in a clean, effi-
cient manner.
The Revel I20/I30 Back Box measures
17.50 x 29.50-inches (444.5 x 749.3mm)
(including the flanges). The back box is
designed to mount between two 2x4-inch
(or 2x6-inch) wall studs on 16-inch centers.
See the illustrations below for inner dimen-
sions.
Installation Instructions
The following items are required for instal-
lation:
•tape measure
•carpenter’s level
•pencil
•hammer
•nails
•drywall section
•drywall screws
•staples/U nails
•utility knife
•service wire (included)
•work gloves
•face mask
Caution
The back box should be installed by a
professional. Installers must adhere to
local building codes to ensure a proper
installation. Harman Specialty Group is
not responsible for any injury or dam-
age caused by improper installation.
14.84-inches
(376.9mm)
10.65-inches
(270.5mm)
17.50-inches
(444.5mm)
13.57-inches
(344.7mm
16.78-inches
(426.2.mm)
28.62-inches
(727mm
Place side flange
on top of stud This flange fits in between wall studs
In-wall fits here
19.22-inches
(488.2mm)
12.50-inches
(317.5mm)
28.62-inches
(749.3mm)
17.50-inches
(444.5mm)
13.57-inches
(344.7mm
21.16-inches
(537.5mm)
Figure 1: I20 Back Box Height & Width Figure 2: I30 Back Box Height & Width

7
REVEL I20/I30 Back Box
Installation Instructions
Note
Figure 3 (above) shows the depth of the
back box. It can be installed in walls con-
structed with standard 2x4s. It is impor-
tant to note that the speaker mounting
frame requires a minimum depth (from
the wall face to the inside back of the
I20/I30 Back Box) of 3-1/2 inches
(88.9mm) for proper installation. This can
only be achieved by using 5/8 inch
(15.9mm) sheetrock on the wall face. It is
recommended the installer consult with
the sheetrock installer before beginning
the installation.
Caution
Installers are advised to wear work
gloves and face mask when installing
the back box and making wire connec-
tions, as the back box contains fiber-
glass.
To install the back box:
1. Use a tape measure to determine the
location where the speaker is to be
mounted. Refer to the Revel I20/I30
In-Wall Loudspeaker Owner’s Manual
for speaker placement considerations.
Record exact measurements from the
floor, ceiling and an adjacent dry wall
section.
Note
The I20/I30 Back Box eliminates sensitivi-
ty to placement considerations due to
standing waves within the wall cavity as
described in the Revel I20/I30 In-wall
Loudspeaker Owner’s Manual.
2. Position the back box between two wall
studs and into the wall cavity as shown
in Figure 4 (above). The back box must
be placed between standard 16-inch
on-center stud spacing. If desired, the
back box can be mounted upside-down
if you will be mounting the speaker
close to the ceiling.
Figure 3: I20/I30 Back Box Depth Figure 4: Place the Back Box between Wall Studs
3.375-inches
(85.7mm)
Rear Front

8REVEL I20/I30 Back Box
Installation Instructions
3. Firmly secure the back box into place
using nails as shown in Figure 5
(above).
Caution
Installers must adhere to local building
codes to ensure a proper installation.
Harman Specialty Group is not respon-
sible for any possible damages caused
by improper installation.
4. Connect the power amplifier cables to
the outside of the back box terminal
cup as shown in Figure 6 (next
column). Loosen the terminal connec-
tors by hand (counterclockwise) on the
terminal cup’s positive (+) and nega-
tive (-) binding posts.
Note
The terminal cup can be removed from
inside the back box if it is necessary to
retighten the amplifier cable connections.
Figure 5: Fasten Back Box to Wall Studs
Back Box Terminal Cup
+
-
Binding Posts
Power Amplifier
5. Insert the amplifier wire and retighten
the connectors by hand (clockwise).
When making connections, use the tie
wrap mount located next to the binding
posts to wrap cable ties for strain relief.
Caution
Be sure to comply with local wiring
codes. Harman Specialty Group is not
responsible for any damages or injuries
that may result from faulty wiring.
Figure 6: Amplifier Connections

9
REVEL I20/I30 Back Box
Installation Instructions
6. Place the section of drywall over the
back box.With tape measure and pen-
cil, carefully measure and mark where
to position the wall template (included
with the loudspeaker) by using the
measurements recorded in Step 1.
7. Use the wall template to trace where to
cut the drywall.
8. Cut a small hole in the center of the
template area to make sure the
template is in the right location.
9. After confirming the correct location,
cut the template hole opening as
shown in Figure 6 (below). Use a
carpenter’s level to ensure the opening
is level.
10. Fasten the drywall to the wall studs
using drywall screws.
11. Install the speaker mounting frame
into the wall opening. Refer to the
Revel I20/I30 In-Wall Loudspeaker
Owner’s Manual for complete instruc-
tions.
12. The back box’s banana plugs are locat-
ed inside the terminal cup as shown in
illustration A in Figure 7 (above).
Route wires from terminal cup behind
the speaker frame clamps (to prevent
close proximity with the woofer basket)
until they emerge at the top of the
speaker frame as shown in Figure 8
(below). The banana plugs must be
positioned correctly for a proper
connection. Be sure to avoid contact
with the speaker cone.
Figure 6: Cut Opening in Drywall
Interior of Back Box
Terminal Cup
Back Box Banana
Plug Connectors
Back Box
Binding Posts
Back Box Side View
A
Figure 7: Back Box Terminal Cup Banana Plugs
Figure 8: Route Terminal Cup Wires to top of the
Loudspeaker

10 REVEL I20/I30 Back Box
Installation Instructions
13. Locate the loudspeaker’s binding posts
as shown in illustration A of Figure 9
above. From the top of the speaker, run
the terminal cup wires down to the
loudspeaker’s binding posts as shown
in illustrations B and C above. The
wires are 18-inches long. If necessary,
use the extra service wire (provided).
14. Loosen the terminal connectors by
hand (counterclockwise) on the bind-
ing posts until the holes in their
threaded posts are visible. Insert the
banana plugs from the top as shown
in illustration B in Figure 9 above.
Make all connections observing the proper
polarity, positive to positive (+) and nega-
tive to negative (-). The banana plugs and
terminal connectors are color-coded for
simple identification: red (positive) and
black (negative).
15. Retighten the terminal connectors to
ensure a secure connection.
16. Refer to the Revel I20/I30 In-Wall
Loudspeaker Owner’s Manual for
complete instructions on installing the
speaker baffle to complete the installa-
tion.
I20/I30 BACK BOX
OUTER DIMENSIONS
Width 17.50-inches (444.5mm)
Height 28.62-inches (727mm)
Depth 3.375-inches (85.7mm)
OBTAINING SERVICE
Before returning a product for warranty or
non-warranty service, contact your author-
ized Revel dealer.
Figure 9: Speaker Connections
Exposed Binding Post
Make Connections
Observing Proper Polarity
In-wall Speaker Rear
Binding Posts
ABC
Insert Banana Plugs
into exposed holes
Terminal Connectors