EQUALIZER BACKGROUND
INTRODUCTION FEATURES
The subwoofer output is an additional convenience when you
wish to add subwoofers to your audio system to
greatly enrich the bass sound.
It will perform with any unit operating in a 12 volt negative ground
electrical system.
5 Band Equalizer with Subwoofer Output
PRE-AMP Line Driver
Front/Rear Outputs with Fader Control
Subwoofer Frequency Adjustable 40Hz -120Hz
Separate Subwoofer Frequency and Level Controls
Center-Detented Boost/Cut Controls for Each Band
RADIO/CD Input selector
Nickel Plating RCA Input and Output Connectors
Independent L & R Input Gain Adjustments
Night Illumination Design
There are basically three types of equalizers: graphic, parametric, and a hybrid
of these two, often referred to as para-graphic. Additionally, there are passive
equalizers, which have no gain, active gain pre-amps, which have a again
stage usually with a volume control, and booster equalizers which we won't
consider here since they are inferior passive equalizers with inexpensive IC
amplifier built-in.
As in state-of-the-art home audio systems the optimum system requires a
dedicated pre-amp with enormous gain to drive the various power amplifiers.
Since home audio amplifiers do not have adjustable sensitivity, the require a
high output pre amplifier to drive them to maximum levels.
This unit is the first production pre amplifier to incorporate a specific
bandwidth parametric equalizer with 12dB boost or cut on its seven bands, it
can compensate for the seven acoustic anomalies unique to the automotive
environment. This unit easily becomes the "Mission control Center" of any high
end automotive sound system.
Congratulations on your purchase of your new pre amplifier-Equalizer. Our
sonic excellence is considered our most important objective. Your selection of
this component tells us you desire to achieve the same goal. Welcome to the
rapidly expanding group of discerning audiophiles who rely upon our
products.
This manual has been prepared to help you maximize your enjoyment of the
outstanding performance and multiple advanced features of this unit. To fully
realize the exceptional performance this product is capable of, it is necessary
that all signal sources, amplifiers, and speakers are of the highest quality.
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FRONT PANEL CONTROLS
BACK PANEL CONNECTIONS
5
1 2 3
4
6 7 8 109
G-EQ5B
1. VOLUME CONTROL: Leave the source unit at 3/4 volume and use
this Control as the master volume control.
2. INPUT SELECTOR SWITCH: This switch selects the RADIO/CD
input.
3. FADER: Controls the output level to front and rear.
4. SUB VOLUME: Independent level control for subwoofer output.
5. SUB FREQUENCY: This control adjusts subwoofer frequency from
40Hz to 120Hz.
6. BASS: Bass band (55Hz) boost/cut control.
7. MID BASS: Mid low range band(250Hz) boost /cut contr
ol.
8. MID: Mid band (500Hz) boost/cut control.
9. MID HI: Mid Hi range band (2KHz) boost/cut control.
10. HI: Hi band (10KHz) boost/cut control.
1. POWER : After connecting the Ground, Remote and Power wires, plug in
the Power Lock connector here.
2. SUBWOOFER OUTPUT: Nickel Plating RCA outputs. Plug in the RCA
cables to your subwoofer amplifier here.
3. REAR OUTPUT: Nickel Plating RCA outputs. Plug in the RCA cables to
your rear channel amplifier here.
4. FRONT OUTPUT
: Nickel Plating RCA outputs. Plug in the RCA cables to
your front channel amplifier here.
5. RADIO INPUT: Nickel Plating RCA inputs. Plug in the RCA cables from the
Radio source unit here.
6. CD INPUT: Nickel Plating RCA inputs. Plug in the RCA cables from the CD
Source unit here.
7. LEFT AND RIGHT GAIN CONTROLS FOR THE CD/RADIO SOURCE:
Sets Left and Right input gain to match the output level from the source unit.
7
1
3
4
5
G-EQ5B
6
2
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SYSTEM TURN ON: After completing all wiring and signal
connections you can now turn the system on.
ADJUST: Raise volume of the unit to maximum. Adjust left and right input gains
of the unit until half way between minimum and maximum. Gradually increase
source volume until clip. Begin gradually increasing input gains until distortion is
audible, then reduce slightly, System should be extremely load at this point. Turn
the volume control down to minimum and back up to comfortable level.
Volume changes should sound linear and balanced.
NOTES: Set your source volume at one -half to three quarter up and leave it.
Always use your volume as a master(main) volume control. It has better
electronics, higher S/N ratio and is more linear than any source unit volume
available. If engine noise is audible, try raising the volume on the source unit,
and/or check the ground connection on the unit.
ELECTRICAL INSTALLATION
One of the best features of this unit is that it allows the listener to adjust each band
exactly to his own satisfaction, so please note that the correct settings depend
very much on the overall system itself and the individual musical taste of the
listener. Please check the settings for each band carefully before completing the
installation.
CROSSOVER CONTROL
+12V
REM
GND
SUBWOOFER
SPEAKER
REAR
SPEAKER
AMP
FRONT
SPEAKER
RADIO/CASSETTE
CD CHANGER
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Surface mounting bracket.
Adjustable slots for screws.
Secure the bracket to
the with the two
3mm x 6mm
screws provided.
Bracket can be reversed for
installer s individual needs. We
suggest securing to surface with
a #8 metal screw.
Secure the bracket to
the with the two
4mm x 15mm
screws provided.
Adjustable slots for screws.
,
1. Select the location to mount the unit under the dash board.
2. Drill (4) 4 mm diameter holes. Fix the mounting bracket
to the location with (4) 4 x 15 mm tapping screw. Be
careful when drilling so as not to damage existing
wiring under the dash board.
3. Mount unit to the mounting bracket with (4) 3 x 6 mm
machine screws.
65-C1130-MA
MECHANICAL INSTALLATION
SPECIFICATIONS
Active gain Equalizer with adjustable input sensitivity.
Master volume control with up to 7 volts RMS of output.
Individual left and right sensitivity controls.
Four band parametric equalizer with 12 dB Boost/cut.
On-board 30V bipolar switching power supply.
Subwoofer level control.
Subwoofer frequency adjustable.
Nickel Plating RCA input/output connectors.
Input CD/RADIO select switch.
Night illumination design.
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