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6
SI 26 and SI 28 Speakers • Specifications
Installation, cont’d
11. Repeat steps 1-10 for the second speaker.
12. When both speakers are in place, carefully pull enough
wire to reach up to the terminals at the back of the speaker
and strip the ends of the wire approximately 5/8" (15 mm),
for connection. . Twist the bared ends of each separate wire
so that they will hold firmly in the connector.
Twist the bared wire
Strip approx. 15 mm (5/8”)
Figure 9 — Strip the wire and twist the bared ends
13. Press down on the spring loaded terminals to open the
holes at the top. Observing the correct polarity, (
,
wire
to
,
terminal
and
.
wire to
.
terminal) insert the
twisted wires into the relevant open holes (see figure 10)
and release the springs to secure. Push any loose wire
through the plate on the wall mount assembly and back
into the wall.
C Do not connect the speaker terminals to one
channel in parallel (together) with those of the other
channel.
Push down on the spring terminals at the
back of the speaker, and insert the wires.
Release the springs to secure.
INPUT
Extron
Extron
positive wire
negative
wire
Figure 10 — Insert wiring into the terminals
14. Turn on the audio source and any associated devices.
Follow the manufacturers instructions to adjust the source
and device settings as desired to get the optimum audio
output for your speaker application. If necessary, re-adjust
the angle of the speaker (repeat step 10) to get the best
audio area coverage.
7
SI 26 and SI 28 Speakers • Specifications
Specifications
Audio/acoustic and electrical
Speaker type ................................... 2-way, indoor/outdoor surface mount
Frequency range ............................ SI 26 70 Hz to 20 kHz, -10 dB, half space
SI 28 50 Hz to 20 kHz, -10 dB, half space
Power capacity .............................. SI 26 150 W continuous program
75 W continuous pink noise
SI 28 180 W continuous program
90 W continuous pink noise
Nominal sensitivity ....................... 90 dB SPL, 1W, 1m, half space
Nominal impedance ..................... 8 ohms
Crossover frequency ..................... SI 26 2.3 kHz
SI 28 2.1 kHz
Woofer ............................................. SI 26 6.5" (165 mm) polypropylene cone
SI 28 8.0" (203 mm) polypropylene cone
Tweeter ........................................... 1.0" (25 mm) aluminum dome
Overload protection ...................... Full range power limiter, protecting the
tweeter, woofer, and crossover
Input connector ............................. 2 pin spring terminals
General
Package ........................................... 2 speakers (1 pair)
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
Mounting ........................................ Wall mount assembly with V-lock (patent
pending)
N
Wall mount assembly can be angled up to 20° upward,
35° downward, 30° to the left, and 30° to the right.
Enclosure type ............................... Plastic, trapezoidal, with metal grille and
bass reflex ports
Enclosure outer dimensions ........ SI 26: 13.0" H x 8.5" W x 6.75" D
(33.0 cm H x 21.6 cm W x 17.1 cm D)
SI 28: 16.5" H x 11.5" W x 8.6" D
(41.9 cm H x 29.2 cm W x 21.9 cm D)
Product weight .............................. SI 26 11 lbs (5 kg) each
SI 28 15 lbs (6.8 kg) each
Shipping weight ........................... SI 26 30 lbs (14 kg) per pair with
mounting kit package
SI 28 40 lbs (19 kg) per pair with
mounting kit package