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InstallAdvantage IA-400D Amp manual
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10
US AGE
This section addresses EQ set-up and day-to-day usage of your IA-400D amplifier.
Remote Cont rol
The features of the IA-400D remote control are listed below.
• POWER — This button forces your IA-400D amplifier unit into standby mode. The power LED
turns amber, the numeric LED shuts off, and the amplifier puts out no power. The unit will remain
in this mode until the POWER button is pressed again. To fully deactivate (i.e. power down) the unit,
use the main power switch on the back panel.
Note: The master power switch on rear panel must be on in order for the front power button
to function.
• MUTE — This button mutes the subwoofer’s output. The LED on the amplifier will show 00 if the
unit is muted. To unmute the subwoofer, press the MUTE button again and the original volume
setting shows on the LED.
• EQ — This button automatically EQs the subwoofer using a 5-band internal graphic equalizer.
To use this feature, first plug the supplied microphone into the Mic-In jack on the front panel of the
amplifier and place the mic in your preferred listening position. Then press EQ on the remote for
about 2-3 seconds. The subwoofer emits 12 “sweep tones” that cover the frequencies between 20 and
150 Hz. The LED displays “AU” during the Auto-EQ process. After the sweeps are complete, the
unit saves its EQ settings and returns to normal operation. To prevent accidental invocation of the
EQ feature, you must hold down the EQ button for 2-3 seconds before the EQ sweeps begin.
Note: Each time the EQ feature is utilized, the EQ settings for the IA-400D amplifier are reset. If the microphone is not plugged in, the
IA-400D amplifier will emit one or two sweep tones then cease the EQ operation. In this case, the previous EQ settings will be preserved.
• PHASE — These buttons allow you to optimize the subwoofer performance for the location and your listening position. Play some
bass- heavy music. While listening, push one of the four phase buttons, listen for a few moments, and then press the next phase button.
In most installations, one of the four button positions will offer an audibly better blend of subwoofer and speakers. Selecting the
correct phase position is just that easy. The LED will show the phase selected by showing “PH” followed by the phase number:
0, 90, 180 or 270.
• LIGHT — If you wish, you can deactivate the numeric LED on your IA-400D amplifier. To do this, press the LIGHT button on your
remote. To reactivate the LED, press the LIGHT button again.
• NIGHT — Night mode limits the maximum dynamic output of the subwoofer for late night listening or to be more considerate of close
neighbors. Press the night button to turn the night mode feature on or off. Activation of night mode causes “n” to appear briefly on the
display. When night mode is deactivated, the display shows “n off” and then returns to normal function.
• VOLUME CONTROL — This control allows you to balance the output from the subwoofer to the main speakers in your system.
This control should be set to achieve similar volume level of both the main speakers and subwoofer. When pressing volume up or down,
the volume level change is shown on the numeric LED on the front panel.
Figure 4: IA-400D Remote.