User Manual

English
4. OPERATIONS
English
6 EQS755 7EQS755
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 EQS755 as the master (main) volume control. The EQS755 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 EQS755 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 fine 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 fills the rear.
Setting the low-pass frequency
Set the low pass frequency switch on the top of the EQS755 to either 60Hz or 90Hz
depending on the subwoofer and subwoofer amplifier 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
EQS755 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 EQS755 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 flathead 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.
Notes (A):
1. With AUX S / W button in out position you can select either Hi Input or Main in.
1.1 Do not use Hi Input and Main at same time; doing that it will cause mixing sounds,
causing too much distortion in the audio.
2. With AUX S / W button in position you can select the AUX IN function.
Using the front panel 3.5mm input
1. Reduce the EQS755's volume to minimum before plugging the 3.5mm cable to avoid
any sudden, unwanted changes in output.
2. Plug the 3.5mm cable into the EQS755 AUX input. The EQS755 will automatically
select this input when the cable in inserted.
3. Turn the EQS755 master volume to a normal listening level.
4. To go back to the main input, simply reduce the master volume and gently unplug the
3.5mm cable from the EQS755.
Note: Unplugging the source device will not change inputs. You must remove the
cable from the EQS755
Care and maintenance
Cleaning the cabinet
Use a soft, dry cloth to gently wipe dust and dirt from the unit.
Do not use benzene, thinner, car cleaner, or other cleaners. These substances may
damage the unit or cause the paint to peel.
Servicing the equalizer/crossover unit
In the event that trouble arises, never open the case or disassemble the unit. The internal
parts are not serviceable by the user. Opening any components will void the warranty.
Changes or modifications to this product that are not approved by the
manufacturer will void the warranty and will violate FCC approval.
CAUTION
5. INSTALLATION AND WIRING
Read these instructions and the following precautions carefully.
What is included in the box
In addition to this manual, the box contains:
• EQS755 7-band graphic equalizer
• 2 mounting brackets
• 8 Phillips-head screws