Ground Zero NUCLEAR GZNA 2800X Mode D'emploi page 10

NOTE ALL WIRE GAUGES ARE BASED ON STRANDED WIRE WITH POLARITY INDICATORS ON TWO WIRE
CONFIGURATIONS.
ANY AMPLIFIER THAT IS SIX HUNDRED WATTS OR MORE, PLEASE CONSIDER USING STIFFENING
CAPACITORS WITHIN 50cm OF YOUR AMPLIFIER. THIS WILL ALLOW FOR ADDITIONAL CURRENT
NEEDS DURING HIGH POWER OPERATION.
P. S. PLEASE USE GREAT CAUTION DRILLING YOUR TRUNK, YOUR GAS TANK AND BRAKE LINES
CAN BE DAMAGED BY PUNCTURING WITH YOUR DRILL BIT. THIS COULD CAUSE DAMAGE OR
FAILURE OF YOUR CARS OPERATING SYSTEMS.
Features
• THERMAL / SHORT / OVER LOAD PROTECTION
• 0.5 OHM STEREO / 1 OHM MONO (GZNA 2800X)
• 1 OHM STABLE STEREO (GZNA 4350X)
• PHASE SHIFT : 0 ~ 180 VARIABLE
• P.W.M. MOSFET POWER SUPPLY
• POWER & DISTRESS INDICATOR
• VARIABLE BASS BOOST LEVEL(0-12dB)
• VARIABLE BASS BOOST FREQUENCY (30Hz-50Hz: GZNA 2800X / 45Hz Fix: GZNA4350X)
• VARIABLE LOW-PASS (30Hz-150Hz: GZNA 2800X / 30Hz-500Hz: GZNA 4350X)
• VARIABLE HI-PASS (10Hz-3KHz: GZNA 4350X)
• VARIABLE SUBSONIC FILTER (10Hz-40Hz: GZNA 2800X / 10Hz-3KHz: GZNA 4350X)
• MODE SWITCH: HIGH / FULL / LOW(BAND PASS: GZNA 4350X)
• HEAVY DUTY HEAT SINK
• ADJUSTABLE INPUT SENSITIVITY
• SOFT DELAYED REMOTE TURN-ON
• LOW LEVEL INPUT
• GOLD BLOCK TERMINAL / RCA JACKS
• BASS REMOTE CONTROL
WARNING!
High powered audio systems in a vehicle are capable of generating "Live Concert" high levels of sound pressure,
Continued exposure to excessively high volume sound levels may cause hearing loss or damage. Also, operation
of a motor vehicle while listening to audio equipment at high volume levels may impair your ability to hear
external sounds such as; horns, warning signals, or emergency vehicles, thus constituting to a potential traffic
hazard. In the interest of safety, Consumer Electronics recommends listening at lower volume levels while driving.
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Planning your System
Before beginning the installation, consider the following:
a. If you plan to expand your system by adding other components sometime in the future, ensure adequate
space is left, and cooling requirements are met.
b. Your Amplifier has been designed to accept Low-Level (Pre-Amp outputs from your radio) signal source.
If your radio / source is equipped with Pre-Amp outputs, it is possible to utilize them to drive the Amplifier and
connecting (Amplifier) to the 2 rear speakers. Then, use the built-in power of your radio to drive the 2 front
speakers.
NOTE :
DISTORTION LEVEL IS CONSIDERABLY LOWER FROM PRE-AMP (LOW LEVEL) OUTPUTS,
THAN SPEAKER (HIGH LEVEL) OUTPUTS.
c. Are your components matched? The peak power rating of your speakers must be
equal or greater than the Amplifiers. They also must be 0.5-8 Ohms impedance
(This information os normally printed on the speaker magnet).
d. Consider both the length of your leads, and routing when determining the
mounting location. Pre-Amp input jacks require a length of high quality shielded
male to male RCA patch cord.
Mounting your amplifier
The mounting position of your Amplifier will have a great effect on its ability to dissipate the heat generated
during normal operation. It has an ample heat sink for heat dissipation, and also designed with a thermal shut-
down (for heat protection) circuit, making air to be directed over the cooling fins will improve heat dissipation
dramatically. DO NOT enclose the amplifier in a small box of cover it so that air cannot flow around fins.
Temperatures in car trunks have been measured as high as 175'F (80'c) in the summer time, since the thermal
shut-down point for the Amplifier is 185'F (85'c) it is easy to see that it must be mounted for maximum cooling
capability. To achieve maximum advantage of convection air flow in an enclosed trunk, mount the amplifier in a
vertical position, on a vertical surface.
Cooling requirements are considerably relaxed when mounting inside the passenger compartment since the driver
will not often allow temperatures to reach a critical point. Floor mounting under the seat is usually satisfactory as
long as there is at least 1 inch (2 cm) above the Amplifier's fins for ventilation.
a. Select a suitable location that is convenient for mounting, is accessible for wiring
and has ample room for air circulation and cooling.
b. Use the amplifier as a template to mark the mounting holes, Remove the Amplifier
and drill 4 holes, use extreme caution, inspect underneath surface before drilling.
c. Secure the Amplifier using the screws provided.
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