3. OPERATIONS
Setting system volume
1. Turn the master volume and subwoofer level controls to their minimum settings.
2. Turn the source unit on and increase the volume until you hear distortion.
3. Reduce the volume to just below the distortion point (approximately 80% of
full Volume).
This is the maximum usable musical signal for the source unit. Turning the
volume beyond this point increases noise and distortion without increasing the
musical signal.
Note: Once you set the source unit volume, do not change it. Always use the volume control on
the MLQ-750 as the master (main) volume control. The MLQ-750 has better electronics, a higher
sound to noise ratio, and is more linear than the volume settings on any source unit available.
Adjusting the controls
The MLQ-750 provides a graphic adjustment band for each of seven frequency
ranges: sub, low, mid, mid-high and high frequency. You can adjust the center of
each frequency band to ne tune the acoustical response to your vehicle’s interior.
1. Set all frequencies to the center position. The small dot on the control knob should
be set at 12 o’clock.
2. Play your favorite music track and adjust the individual controls to suit your taste.
Avoid extreme settings, which can distort musical peaks.
3. Increase or decrease the equalizer gain controls to suit your taste.
4. If your system includes a subwoofer, slowly increase the subwoofer level until you
hear a solid bass.
5. If your system includes rear speakers, adjust the fader control to add rear sound.
Set it so most of the music comes from the front and only lls the rear.
Setting the low-pass frequency
Set the low pass frequency switch on the top of the MLQ-750 to either 60Hz or 90Hz
depending on the subwoofer and subwoofer amplier requirements.
Connecting an MP3 player or video unit
1. Plug the MP3 player or video unit into the auxiliary RCA input on the back of the
MLQ-750 unit.
2. Make sure the auxiliary button on the front of the unit is out, ready to receive input
from the main RCA input (not the auxiliary RCA input).
3. Turn the MLQ-750 master volume to a normal listening level.
4. Press the play button on the auxiliary source.
5. Push in the AUX button to change to the auxiliary source.
6. Using a small athead screwdriver, adjust the AUX gain controls located on the
top of the unit so that the volume of the auxiliary source matches the volume of
the main source.
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