Ground Zero IRIDIUM SERIES Manuel utilisateur

IRIDIUM SERIES

Mono Class D Amplifier

GZIA 1.1500D

Owner´s manual

(AWV2.0)

Features

•High-quality class D amplifier

•1 ohm stable

•Variable low pass filter

•Phase switch

•High-level input with auto-on function

•Adjustable input sensitivity

•Turn-on delay

•Thermal protection

•Short protection

•Overload protection

•Bass level remote control included

GROUND ZERO GZIA 1.1500D

IRIDIUM SERIES

General mounting instructions

•As a precaution, it is recommended to disconnect the vehicles battery before mounting the amplifier.

Note: For new vehicles, disconnecting the battery might cause various errors in your vehicle´s electric

system that can be cleared only by authorized service partners of your vehicle´s manufacturer! Please

ask your service partner first before disconnecting the battery!

•The power supply wire (+12 V) has to be protected within max. 20 cm / 8” by a main fuse holder with

a fuse value matching the recommendation for your amplifier

Note: If there is more than one amplifier connected using this power wire, the main fuse value must be

equal to the sum of the recommended fuses of all connected devices. However, make sure the

diameter of your power wire will be enough for the required current!

•If necessary, replace a defective fuse by a fuse with identical quality and value

•Never drill holes to the vehicle´s gas tank, brake lines, to wirings or any other important vehicle parts!

•Never pass wires over sharp edges or vehicle parts due avoid any kind of damage

•Keep the wiring away from the antenna and electronic devices contributing to radio reception

•Lay the power supply wiring always separated from speaker wiring to avoid disturbance

•The amplifier contains a temperature protection circuit that turns the device off in case of overheating.

After a certain cooling time, it will turn on automatically. To avoid heat build-up, enough air supply for

cooling must be provided. Never cover the surface of the amplifier´s heatsink entirely

•The amplifier should NEVER be mounted onto a vibrating part or surface such as a subwoofer

enclosure. This might lead to malfunction due to loosened electrical parts inside the amplifier.

•Some amplifiers offer a high-level input option, however if a pre-amplified output (RCA) is available (at

the head unit), it is strongly recommended to make use of them.

Specifications

Model

GZIA 1.1500D

Amplifier type

Mono class D

RMS Power @ 4 ΩCEA Standard CEA-2006-A (@ 1 kHz)

425 W (1% THD+N)

RMS Power @ 2 ΩCEA Standard CEA-2006-A (@ 1 kHz)

775 W (1% THD+N)

RMS Power @ 1 ΩCEA Standard CEA-2006-A (@ 1 kHz)

1300 W (1% THD+N)

Max. Power @ 1 ΩCEA Standard CEA-2006-A (@ 1 kHz)

1500 W (10% THD+N)

Low pass filter

30 Hz – 250 Hz (12 dB/oct)

Frequency response

10 Hz – 250 Hz (± 1 dB)

Total harmonic distortion (THD+N)

< 0.08%

Damping factor

> 100

Input sensitivity

200 mV – 6 V

Rec. speaker wire

≥4 mm² / 12 AWG

Rec. power wire

≥35 mm² / 2 AWG

Fuse(s)

3x 40A

Dimensions w x h x l (heatsink / overall)

192 x 49 x 360/388 mm

Dimensions w x h x l (heatsink / overall)

7.56 x 1.93 x 14.17/15.27“

GROUND ZERO GZIA 1. 1500D

IRIDIUM SERIES

Controls & Features

Speaker terminal

To connect the speaker wires - min. load 1 ohm

Power terminal

+12V To be connected to the positive terminal of the battery

REM To be connected to the remote output of the head unit*

(*not required in high-level mode)

GND To be connected to the vehicle´s ground

(or directly to the negative terminal of the battery)

Fuse(s)

If necessary to replace a defective fuse, its strongly recommended to

use a fuse with the identical value

Phase switch

To set the required phase ( 0° / 180° )

Low pass filter

To adjust the required crossover point. Frequencies above the selected

crossover point will be filtered (30 Hz to 250 Hz)

Sensitivity control

Controller to adjust the input sensitivity

Line input (RCA)

Input sockets to connect RCA wires

Important note: High-level and RCA inputs should

never

be used

simultaneously! This may cause serious damage to the amplifier

High-level input

Head units without RCA pre-amplifier output signal, can be connected

using the high-level input to connect the speaker output of the head

unit directly.

If used, the amplifier turns on automatically (auto-on feature)

The remote input of the power supply terminal remains unused

Important note: High-level and RCA inputs should

never

be used

simultaneously! This may cause serious damage to the amplifier

Status indication

POWER (green) ok (correct operation)

PROTECT (red) error (protection mode)

Remote wire socket

To connect the wired remote control

Bass Boost control

To adjust the bass boost level ( 0 to +12 dB @ 45 Hz)

GROUND ZERO GZIA 1.1500D

IRIDIUM SERIES

Trouble shooting guide

Terms of warranty

The limited warranty for this product is covered by GROUND ZERO´s regional distribution partners and their

terms and conditions. For further information contact your local retailer or distributor.

Safety instruction / Manufacturer´s declaration

Safety Instructions: Do not expose the device to extreme temperatures, fire, high humidity or direct contact with liquids. Do not

use the device if it has been damaged or exposed to liquids. Keep the device, packaging and accessories away from children

and pets to prevent accidents and suffocation.

Manufacturer‘s declaration: Herewith Ground Zero GmbH declares that this product complies with the directive 2014/30/EU

(EMC) and further declares that this product is in conformity with the rules of the EU directives (including all applicable

amendments) 2011/65/EU RoHS2 and 2001/95/EC General Product Safety directive. The full text of the Declaration of

Conformity (EU) is available at the following internet address: www.ground-zero-audio.com.Electronic products contain valuable

raw materials and must not be disposed of with normal household waste. At the end of its service life, please bring the device to

your local recycling facility.

GROUND ZERO products are engineered in Germany

GROUND ZERO – international sponsor

Ground Zero GmbH

Erlenweg 25, 85658 Egmating, Germany

Tel. +49 (0)8095/873 830 Fax -8310

www.ground-zero-audio.com

Symptoms

Check / Cause

Action

No audible sound

Does the POW LED turn to green?

Check protection fuse(s) of the amplifier (harness)

Check remote wire connection (RCA input mode)

Check +12 Volt power supply wire connection

Check ground wire connection

Did the PROTECT LED turned to red?

Check for speaker short or amplifier overheating

Device does not

turn on

Power supply of the amplifier?

Check power wire or connections

Remote wire powered? (RCA input

mode)

Check remote wire connection to the head unit

No sound on one

channel

Speaker wiring undamaged?

Check for short circuit or open connections

Input signal on each RCA lead?

Reverse left and right RCA inputs to check the

audio input signal

Device turns off at

medium / high

volume

Load impedance of each speaker

correct?

Check if each speaker load impedance matches

the technical specifications of the amplifier

Status LED turned

on red

Temperature protection circuit active

Decrease head unit´s volume / wait for cooling

Speaker wires short / speaker

damaged

Check speaker / wires and insulate if necessary

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