Emotiva Airmotiv Series User Manual page 13

AIRMOTIV SUBWOOFERS
3. Power Mode Switch
Note: Your Airmotiv sub will only operate if the AC POWER Switch is turned ON. If the AC POWER
Switch is OFF, your Airmotiv sub will NOT operate.
When the Power Mode Switch is set to On, the Airmotiv sub will remain On continuously.
When the Power Mode Switch is set to Auto, the Airmotiv sub will turn On automatically when
incoming audio is detected. Once the Airmotiv sub is On, it will remain On for several minutes; if
no audio is detected after several minutes, the Airmotiv sub will return to Standby Mode.
4. Power Indicator
The Power Indicator will be illuminated green when the Airmotiv sub is On, and will be
illuminated red when the Airmotiv sub is in Standby Mode.
5. Volume Control
This control sets the relative gain of your Airmotiv sub. Use this control to set the amount of bass
delivered by your Airmotiv sub to be a good match for the output of your main speakers.
6. LF Boost Control
The LF Boost control is used to fine tune the response of the Airmotiv subwoofer at very low
frequencies to your room and personal preference. The response of your Airmotiv subwoofer
will be flattest with this control set to the vertical (center) position; in the fully counterclockwise
position (left), bass is reduced by approximately -3 dB at 30 Hz; in the fully clockwise position
(right), bass is boosted approximately +6 dB at 30 Hz.
Note: If your system has automatic room correction, you should set this control to its center
(flat) position before running room correction. Then, after running room correction, use the
control to add a little more or less low bass to suit your personal preference.
7. Crossover Control
Airmotiv subwoofers include a built-in 12 dB/octave crossover (low pass filter). This control allows
you to adjust the crossover frequency for the best match with your main speakers. If you're using
your Airmotiv sub with a home theater pre/pro or AVR that has its own bass management, you
should set this control to highest frequency setting (fully clockwise - 150 Hz). If not, then the
proper setting will depend on your main speakers, but 80 Hz (about 10 o'clock) is a good starting
point - and is often considered to be a standard setting for home theater equipment.
8. Phase Control
The phase control is used to adjust the phase on your sub to match the phase of your main
speakers. The best setting here will depend on your main speakers and where your sub is located
in relation to them. This control is usually set to the point where you hear the most bass in the
range of frequencies where the sub overlaps with your main speakers.
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