GZPA 1.8000SPLHC - Car stereo Ground Zero - Free user manual and instructions

Product type	Class D mono amplifier for subwoofer
Brand	Ground Zero
Model	GZPA 1.8000SPLHC
Dimensions (W x H x D)	720 x 75 x 300 mm
Power supply	DC 10V ~ 16V, max current 600 A
Max power @ 1 Ω (10% THD)	1 x 9000 W
Max power @ 1 Ω (1% THD)	1 x 7400 W
Max power @ 2 Ω (1% THD)	1 x 4300 W
Max power @ 4 Ω (1% THD)	1 x 2200 W
Efficiency	>86% @ 4 Ω
Signal-to-noise ratio	>80 dB
Damping factor	>200 (100 Hz @ 4 Ω)
Low-pass filter	Adjustable 35 Hz ~ 250 Hz
Subsonic filter	Adjustable 10 Hz ~ 70 Hz
Bass boost	0 ~ +9 dB, frequency 30 Hz ~ 90 Hz
Phase shift	0 ~ 180°
Input sensitivity	200 mV ~ 10 V
Linkmode function	Allows coupling two amplifiers for optimal power
Protections	Thermal, overload, short circuit, protection LED
Warranty	In accordance with legal rights, return required with original packaging and invoice

Frequently Asked Questions - GZPA 1.8000SPLHC Ground Zero

How to install the GZPA 1.8000SPLHC amplifier?

First, disconnect the vehicle battery. Choose a location with good air circulation. Secure the amplifier with the provided screws. Connect the +12V power cable (min. 2x50mm²) to the battery via a fuse holder within 20 cm of the battery. Connect the ground to a clean chassis ground point (cable min. 2x50mm²). Connect the Remote wire to the 12V output of the head unit. Finally, connect the RCA cables and speakers.

What is the minimum speaker impedance in normal mode?

The amplifier is stable at 1 Ω in normal mode. Ensure the total impedance of the connected speakers is not lower than 1 Ω to avoid damage.

How to use Linkmode to couple two amplifiers?

In Linkmode, a master amplifier controls a slave amplifier. Set the MASTER/SLAVE switch on the master to 'OUTPUT MASTER' and on the slave to 'INPUT SLAVE'. The speaker impedance must not be lower than 2 Ω in Linkmode.

What to do if the amplifier does not power on?

First check for 12V on the +12V terminal and on the Remote terminal (at least 12V). Check the ground connection and the fuse condition. If the protection LED is on, check the speaker cables for a short circuit.

Why is the protection LED on?

The protection LED lights up in case of overload, short circuit, or excessive temperature. Disconnect the speakers and turn the amplifier back on. If the LED turns off, the issue is with the speakers or wiring. If it stays on, the amplifier may be defective.

How to adjust the input sensitivity (Input Level)?

Turn the Input Level control fully left (MIN). Set the head unit volume to 2/3 of maximum. Gradually increase the Input Level until you get a pleasant sound without distortion. Note: a CD has higher dynamics than FM radio.

What to do in case of overheating?

The amplifier will automatically shut off if it overheats. Check that the speaker impedance is correct and there is no short circuit. Ensure the amplifier has good air circulation. Allow it to cool before turning it back on.

How to eliminate a whining or engine noise in the speakers?

Disconnect the RCA cables from the amplifier. If the noise disappears, the issue is with the RCA cables or the head unit. Also check the ground connection and the absence of a ground loop. Use quality RCA cables and keep them away from power cables.

What is the maximum power in Linkmode?

In Linkmode with two amplifiers, the maximum power reaches 1 x 18000 W at 2 Ω with 10% distortion.

What power cables are recommended?

Use power cables with a minimum cross-section of 2x50 mm² for power and ground. For speakers, a cable of at least 6 mm² is recommended. The fuse holder must be installed within 20 cm of the battery.

USER MANUAL GZPA 1.8000SPLHC Ground Zero

Using a dual amplifier configuration, the MASTER amplifier has total control over the SLAVE amplifier.

We recommend to use the built-in linkmode without an external link module.

When utilizing the dual amplifier configuration it is important to note that the

connected speaker load can be no lower than 2 Ohm. Connecting a lower impedance load

Can damage the amplifier and VCO warranty.

Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.

wwwground-zero-audio.com

We reserve the right to make needed change or improvement to the product without informing customer about this in advance.

Please read before installation

Thank you for selecting a GROUND ZERO Plutonium amplifier.

We are providing a helpful hints list which should keep you from experiencing

unnecessary shut down

Introduction Class-D Amplifier

Due to their state-of-the-art technology and high efficiency, these Class-D mono amplifiers help your system to

provide an impressive sound experience. The modern circuit technology of the power supply and the signal

processing allows achieving maximum performance levels from the provided power.

Due to the different filters and circuits a very high power output is achieved, therefore these amplifiers are made

for low frequency information (Subwoofer). They can not be used for high- and midrange speakers.

The link mode enables to use to full power of two amplifiers for one speaker. This is first of all advantageous for a

really powerful and lively music playback.

Features

High current amplifiers for maximum power at low current
Class-0 Design for high efficiency
Effciency>80%
Damping factory >200 at 42
Operation voltage: DC 10V~10V Input
1Ωstable(Linked)
Dual PROSPECT PWN power supply
Power and Protection Indicators
Variable ionpass
Variable subsonic filter 1066 Variable Phase Shift
100-Variable Phase St
Aulmnnnne
RCA inputs / output
Bassineke control 142/160 Production
-

Tools and materials you need

Screwdriver
Electric drill 1/8 carbide drill bit
Mounting screws
- Use min 50 mm² power wire
- Use min 50 mm² ground wire
- Use min 6 mm² speaker wire

Caution!

• As a precaution it is advisable to disconnect the vehicle's battery before making connection to the +1.2 Vials supply wiring (see owner's manual of your car for further information).
  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.
  Take care of square edges, the cable could be rub through.

WARNING

High powered audio systems in a vehicle are capable of generating "Live Concert" high level 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 sound such as; horns, warning signals, or emergency vehicles, thus constituting to a potential traffic hazard. For safety reasons we recommends listening at lower volume levels while driving.

Planning your system

Before installation, consider the following notes:

a) Select a suitable location that is convenient for mounting, is accessible for wiring and has enough room for air circulation and cooling.
b) If your radio is equipped with preamplifier outputs (RCA), it is advisable to use them.
c) Please consider the enormous power consumption (up to 600A) of this amp when designing the setup. We strongly recommend to install an additional battery. Too little power from the battery / alternator may cause defects on your amplifier and your car.

Mounting your amplifier

• Select a suitable location that is convenient for mounting, is accessible for wiring and has ample room for air circulation and cooling.
• Use the amplifier as a template to mark the mounting holes, remove the amplifier and drill 6 holes (use extreme caution, inspect underneath surface before drilling!). Secure the amplifier with the mounting screws.

RCA Connections - Single mode

Single amp input connection

Dual amp input connection (Master & Slave RCA connection)

Speaker connections

Linkmode

Wenn Sie den Linkmode verwenden, hat der MASTER Verzinslerte vole Kontrolle über den SLAVE Verlärkten beim Linkmode einpflichten wir; die ergebene Linkschaltung zu verwenden (KEIN extern linkmodul).
Using a dual amplifier configuration, the MASTER amplifier has total control over the SLAVE amplifier. We recommend to use the full-in linkmode without an external link module.
En linkmode, l'armatiféure MASTER à unPlain contrôle sur l'armatiféure ESCLAVENous reconnctions d'utiliser le circuit gauche installé et aucoun module expléctor.

Achtung / Caution / Attention

When utilizing the dual amplifier configuration it is important to note that the connected speaker load can be no lower than 2 Ohm. Connecting a lower impedance load can damage the amplifier and void warranty.

Please read owner's manual of your car before you disconnect the battery.

+12 Volt (Fused) Constant power: To Battery (+)

Use a strong power cable (50 mm²) for connection the +12V terminals of the amplifier to the + terminal of your battery.

It is necessary to install 2 in-line fuse holders with a maximum distance of 20~cm to your battery to ensure a safe operation of the amplifier. Make sure the fuses are not connected when connecting the + cable to the battery this could cause defects on the device or Injuries.

Ground

Disconnect the battery and connect the ground terminals to the vehicle chassis. Is absolute necessary, that the same wire-cross section is used for the ground and +12V connection. Use a ground wire that is as short as possible (about 25cm / 10^4 ). To avoid ignition noise caused by ground loops, it is necessary that the amplifiers be grounded to a clean, bare metal surface of the vehicles chassis.

Remote

Connect the Remote terminal with the remote output of your head unit or another 12 V source like your antenna terminal.

Turning on your amplifier

The amplifier automatically turns on a few seconds after you turn your vehicle's ignition switch to ACC ON or turn on your auto sound system, depending on how you wired the system.
Note: Your amplifier temporarily shuts down if it gets too hot, then restarts automatically once it cools down.

The input level must be adjusted correctly to provide a good performance of the amplifier (200mV - 10V).

Adjusting the audio level / Input sensitivity

Step 1 Turn the input level controller fully to MIN in counterclockwise direction,

Step 2 Turn the auto sound system's volume control to about two third of its full range.

Step 3 Adjust the auto sound system's volume control to a comfortable listening level.

Please note - The gage on a CD, that reproduces music with a higher dynamic is essential higher as on Radio reception.

Trouble shooting

This power amplifier has protection features to prevent any damages from misuse or faulty conditions. If the unit senses excessive heat, short circuited speakers or overload, the protection indicators will light, and the system will be turned off. In order to check the occurred problem, you should turn all levels down and all power off and carefully check the installation for wiring mistakes or short. If the amplifier shuts down due to excessive heat, the protection indicators will not light: simply allow time for the unit to cool. Before removing your amplifier, refer to the list below and follow the suggested procedures. Always test the speakers and their wires first.

Problem	Check points
Amplifier is not powered up	· Check that there is battery power on the +12V terminal. · Check that remote terminal has at least +12V DC remote connection. · Check a good ground connection. Check all fuses. · Check the protection LED is not lit.
Protection LED illuminates when amplifier is powered up	· Check shorts on speaker wires. · Remove speaker wires and reset the amplifier. If the protection LED still comes on, then the amplifier is faulty.
Fuse blowing	· Check that the minimum speaker Impedance is correct. · Check short on power cable and vehicle chassis.
Overheating	· Check that the minimum speaker Impedance is correct. · Check speaker shorts. · Check that there is a good airflow around the amplifier.
Sound too low / Distorted sound	· Check that the input level control is set to match the output level of the unit. · Check the head unit volume. · Check speaker shorts. · Check that crossover frequencies have been properly set.
High hiss / engine noise in speakers	· Check a good ground and for speaker shorts. · Disconnect all RCA inputs from the amplifier. If hiss/noise disappears, check it with a good RCA interconnect. Then check the component driving the amplifier.

Specifications

Model GZPA 1.8000SPL-HC
RMS power @ 1 Ω, 10% THDCEA Standard CEA-2006-A	1 x 9000 W
RMS power @ 1 Ω, 1% THDCEA Standard CEA-2006-A	1 x 7400 W
RMS power @ 2 Ω, 1% THDCEA Standard CEA-2006-A	1 x 4300 W
RMS power @ 4 Ω, 1% THDCEA Standard CEA-2006-A	1 x 2200 W
RMS power @ 1 Ω 12 V,1% THD	1 x 5900 W
RMS power @ 2 Ω Linkmode10% THD	1 x 18000 W
Damping factor >200 (100Hz @ 4Ω)
Signal to noise ratio >80 dB
Lowpass 35Hz ~ 250Hz
Subsonic filter 10Hz ~ 70Hz
Bass boost 0 ~ +9dB
Bass boost frequency 30Hz ~ 90Hz
Phase shift 0 ~ 180°
Frequency response	10 Hz ~ 250 Hz(+/-1dB)
Efficiency @ 4 Ω 86%
Input sensitivity 200mV - 10V (+/- 5%)
DimensionsW x H x L mm	720 x 75 x 300 mm
DimensionsW x H x L inch	28.34" x 2.95" x 11.81"

Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.

wwwground-zero-audio.com

We reserve the right to make needed change or improvement to the product without informing customer about this in advance.

Using a dual amplifier configuration, the MASTER amplifier has total control over the SLAVE amplifier.

We recommend to use the built-in linkmode without an external link modulo.

When utilizing the dual amplifier configuration it is important to note that the

connected speaker load can be no lower than 2 Ohm. Connecting a lower impedance load

can damage the amplifier and void warranty.

Limited warranty - defective products must be returned in original packaging - please add a copy of the original purchasing invoice showing the purchasing date and a detailed description of the failure. Failure caused by overload, misuse or by using the product for competition purpose are not covered by the warranty.

wwwground-zero-audio.com

We reserve the right to make needed change or improvement to the product without informing customer about this in advance.