Niles SWA-500M Installation Manual page 11

NOTE: FOR A HOME THEATER RECEIVER NOT EQUIPPED WITH A POWER TRIGGER OUTPUT,
CONSIDER USING A NILES 12-VOLT POWER SUPPLY AS A TRIGGER SIGNAL THAT IS ACTIVATED VIA
A SWITCHED AC OUTLET ON THE RECEIVER. SEE FIGURE 7 FOR CONNECTION DETAILS.
2. (Auto) POWER Switch: Use the ALWAYS ON mode to leave the SWA-500M always on. Use
the MUSIC/VOLTAGE SENSE mode to automatically power on the SWA-500M when an
audio signal or trigger voltage is present. When either signal is absent for 15 minutes, the
SWA-500M will enter the standby mode.
NOTE: THE ALWAYS ON AND MUSIC/VOLTAGE SENSE SETTINGS ARE ONLY ACTIVE AFTER (MASTER)
POWER IS SET TO ON.
3. MOVIE MODE TRIGGER: For external movie/music mode triggering, use a mini (3.5 mm)
plug to connect the IN jack to a movie trigger signal from a home theater surround
processor or receiver. The 3 to 30 Volts (AC or DC) signal will set the SWA-500M to
movie mode, while a 0 Volts (AC or DC) signal will keep it in the music mode. Again, tip is
positive. Use the OUT jack to pass the movie trigger signal to another
SWA-500M amplifier.
NOTE: IF THE SETUP SWITCH (SEE FIGURE 6 ON PAGE 7) ON THE FRONT PANEL IS SET TO MUSIC,
A 3 TO 30 VOLTS (AC OR DC) TRIGGER SIGNAL WILL CHANGE OPERATION OVER TO THE MOVIE
MODE. IF THE SETUP SWITCH IS ALREADY SET TO MOVIE, A TRIGGER SIGNAL HAS NO EFFECT,
SINCE THE MODE IS ALREADY SET TO MOVIE.
4. SPEAKER switch: Use this switch to select the number of subwoofers (1 or 2) that
are connected to the amplifier. Be sure that it is set to the correct position before
turning on the amplifier or damage to the amplifier may result. If only one subwoofer is
connected and the switch is set to the "Two sub" position, then no sound will be output
from the amp.
5. BASS BOOST selector: Use this rotary switch during setup to select a frequency to
enhance the sound of the subwoofer(s) connected. It should be set to the "-3dB down
frequency" of the subwoofer.
6. AUDIO IN jacks: Use these gold-plated line-level RCA input jacks to connect line-level
stereo or LFE audio signals from a home theater receiver or processor. The LFE (Low
Frequency Effects) input is unfiltered by the SWA-500M.
7. AUDIO OUT jacks: Use these gold-plated line-level RCA output jacks to connect line-level
stereo and LFE audio signals to drive another SWA-500M amplifier. The LFE output is
unfiltered, but the L/R output signals are routed through the variable (60 to 160 Hz)
HIGH-PASS filter, and the response will be contoured according to filter settings.
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
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