Velodyne Acoustics IA-400 manual Remote Control, U S A G E

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U S A G E

This section addresses EQ set-up and day-to-day usage of your IA-400 amplifier.

Remote Control

The features of the IA-400 remote control are listed below.

•POWER — This button forces your IA-400 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.

Figure 4: IA-400 Remote.

Note: Each time the EQ feature is utilized, the EQ settings for the IA-400 amplifier are reset. If the microphone is not plugged in, the IA-400 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-400 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 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. Night mode, when active, will reduce the brightness of the blue power LED.

•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.

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