1
Print at 100% - Do Not “Fit to Paper”.
4
5
Level speaker, position each wall clamp outward, and tighten
each screw until snug.
Install dust shield to protect the speaker during ongoing
construction.
Application diagram:
2
Carefully cut a hole along the inside of the traced line.
3
Attach the speaker wires to the 2-pole captive screw plug.
Use red for the positive (+) wire and black for the negative (-)
wire. Insert the 2-pole captive screw plug into the 2-pole
connector on the back of the speaker.
RS-232/
ML
C/I
R
Tx
Rx
IR
12
V
A
B
C
PR
EA
MP
100-
240V
1.0
A MAX.
50-60Hz
AU
DIO IN
PU
TS
LIN
E L
EVEL
MON
O
AU
DIO
AU
DIO
LIN
EOU
T
AU
X/M
IX
AD
JUST
-42dB
TO
+24dB
L
R
L
R
R
1
2
INPU
TS
OU
TPU
TS
VID
EO
H
V
B
G
R
1
2
INPU
TS
MON
ITOR
OU
T
5
6
RIGH
T
LE
FT
AM
PLIF
IED
OU
TPU
T
R
Extron
MLS 304SA
MediaLink Switcher
SI 28W
Two-way In-wall
Speaker
Laptop
w/ Audio
Projector
VCR
PC
At least 1” from the stud.
Trace template.
SN XXXX
XXXX E XXX
XX
00/0
0
SI 28W
In-W
all Spea
ker
33-
1235
-01
Imp
eda
nce
8 Oh
ms
Enginee
red
in USA
Determine speaker location.
Leave at least 1” clearance from the edge of the speaker
to the studs in all directions. Hold or tape template in location,
make sure template is level. Trace along the inside of the template.
224 mm x 326 mm
(8.8” x 12.85”)
Cut material.
Specifications:
Acoustic & Electrical
General
Speaker type.................................. 2-way in-wall speaker
Frequency range........................... 30 Hz to 20 kHz, -10 dB, half space
Power capacity.............................. 70 W continuous program,
35 W continuous pink noise
Nominal sensitivity...................... 89 dB SPL, 1 W, 1 m, half space
Nominal impedance .................... 8 ohms
Crossover frequency................... 2.5 kHz
Woofer........................................... 8" (203 mm) polypropylene cone with
moisture resistant coating
Tweeter.......................................... 1" (25 mm) titanium dome
Temperature/humidity............... Storage: -40 to +158 °F (-40 to +70 °C) /
10% to 90%, noncondensing
Operating: +32 to +122 °F (0 to +50 °C) /
10% to 90%, noncondensing
Warranty ....................................... 5 years parts and labor
NOTE: All nominal levels are at ±10%.
NOTE: Specifications are subject to change without notice.
Cutout Template
Paint Guard
SI 28W
In-Wall Speaker
User’s Guide
Insert the speaker into the wall opening.
Loosen the six screws on the front baffle (counter
clockwise) 1/2 turn. Then tighten the screws (clockwise)
until the dog legs clamp the speaker to the wall.
68-1102-01
Rev. A
08 07
6
Remove the dust shield,
install the speaker grill.
Dust Shield
Do not over-tighten screws.
CAUTION