26
Connecting the Line Level Audio Inputs
CAUTION: Only make connections when the amplifier is turned off.
There are three areas that an input signal can be connected, BUS, AUX and
LINE IN. Refer to the System Design Examples to determine which is best suit-
ed for your application.
Audio Outputs
Sources connected to the “BUS” or “AUX” inputs can be forwarded to other
components or amplifiers by connecting to the corresponding output sections
to the right of each input section. By using standard audio patch cables, you
can connect these outputs to the inputs of another amplifier. Up to 5
SpeakerCraft amplifiers can be daisy-chained together.
AC Power
Plug the socket of the AC cord supplied with the amplifier into the receptacle
on the rear of the amplifier. Plug the 2 prong plug directly into a 120V 60 Hz
wall outlet.
CAUTION: Do not plug the amplifier into the preamplifier or receivers
switched outlet. If you wish to have the amplifier turn on once the preamplifi-
er or receiver is activated, use one of the turn on modes, voltage or audio.
See Diagram 1
for the location of the following:
Power Switch
The switch marked “Power” on the front panel of the amplifier will turn off all
amplifier circuitry no matter which turn on mode is selected. Refer to the
“Power Mode Selection” section for further information.
Active LED
When lit, the Active LED indicates that the amplifier is operating. Refer to the
“Power Mode Selection” section of this manual for further information.
Protection LEDs
When lit the “Protection” LEDs located on the front of the amplifier indicate
that either a fault in the wiring, the speaker, or the amplifier has caused the
channels associated with the LED to shut down.
Level Adjustment Knobs
The level adjustment knobs on the back panel of the amplifier can be used to
adjust the level of each channel. There are many reasons for needing to
adjust the level. You many wish to closely match other levels in the system, or
you may wish to limit the volume level in an area, such as a child’s room.
OPERATION
25
Control Output
The 12V output jack on the back of the amplifier can be used to turn on a
variety of components equipped to be activated when they receive a 12V DC
output. Voltage is only delivered to the jack when the amplifier is “on” or
active. When the amplifier turns off, the voltage ceases.
Before connecting another device to the 12 output please make sure that the
device can accept 12V DC at 150ma. To connect the output to another
device you must access the output jack with a two-conductor plug that fits
into the 3.5mm jack. Be aware that the tip of the plug will be (+). If you are
unsure about using this feature please contact an authorized SpeakerCraft
dealer for assistance.
Connecting the Speaker Wires
CAUTION: Only make connections when the amplifier is turned off.
Using Standard Connections (See Diagram 13)
For best performance use high quality speaker cables. The banana plug
outputs on the back of the amplifier allow for a variety of ways to con-
nect your speakers to the amplifier.
Using InstaLLock
™
Connector (purchased separately)
The InstaLLock
™
Connector designed for use with SpeakerCraft Amplifiers
must be used. The InstaLLock
™
Connector designed for SpeakerCraft
Speaker Selectors is not labeled for use with the amplifiers.
Please follow the instructions included with the Connector.
Diagram 13: Binding Post Detail
