Red “Power” LED confirms the amplifier is
connected to a live AC power outlet. (and
that the master power switch is on).
Green “Active” LED lights when the
amplifier circuitry has been turned on by
the Turn-On circuits.
Front panel “Master Power” switch turns
off the entire amplifier, including the
Turn-On circuitry.
The red “Protect” LED indicates the amp has shut
down because there is a fault in the speaker, the
wiring, or with the SI-275 itself.
Main Inputs enable you to route a stereo
line level source to the SI-275.
Cascade Outputs of the main input enable
you to daisy chain multiple amplifiers.
3.5mm Mini Plug socket for
12v DC Control output.
“
Turn-On Mode
”
switch
3.5 Mini Plug socket
for voltage input.
9
F
R
O
N
T
A
N
D
R
E
A
R
P
A
N
E
L
D
E
T
A
IL
S
DS00219CMY-SI-275.qxp 6/7/05 3:18 PM Page 9
