GROUND ZERO IRIDIUM SERIES Mono Class D Amplifier Owner’s Manual
- June 9, 2024
- Ground-Zero
Table of Contents
GROUND ZERO IRIDIUM SERIES Mono Class D Amplifier
Features
- High-quality class D amplifier
- 1 ohm stable (2 ohms stable in linked mode)
- Variable low pass filter
- Phase switch
- Optional linked mode (for 2 amplifiers)
- High-level input with auto-on function
- Adjustable input sensitivity
- Turn-on delay
- Thermal protection
- Short protection
- Overload protection
- Bass level remote control included
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 1.2000D |
|---|---|
| Amplifier type | Mono class D |
| RMS Power @ 4 Ω CEA Standard CEA-2006-A (@100 Hz) | 750 W (1% THD+N) |
| RMS Power @ 2 Ω CEA Standard CEA-2006-A (@100 Hz) | 1300 W (1% THD+N) |
| RMS Power @ 1 Ω CEA Standard CEA-2006-A (@100 Hz) | 1800 W (1% THD+N) |
| RMS Power @ 2 Ω in linked mode (2 amplifiers) | 3600 W (1% THD+N) |
| Max. Power @ 1 Ω CEA Standard CEA-2006-A (@100 Hz) | 2000 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) | < 0.09% |
| Damping factor | > 100 |
| Input sensitivity | 200 mV – 6 V |
| Rec. speaker wire | ≥ 6 mm² / 10 AWG |
| Rec. power wire | ≥ 53 mm² / 0 AWG |
| Fuse(s) | 4x 40A |
| Dimensions w x h x l (heatsink / overall) | 192 x 49 x 382/410 mm |
| Dimensions w x h x l (heatsink / overall) | 7.56 x 1.93 x 15.04/16.14“ |
Controls & Features
| 1 | Speaker terminal | To connect the speaker wires – min. load 1 ohm |
|---|---|---|
| 2 | 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)
3| Fuse(s)| If necessary to replace a defective fuse, its strongly recommended
to use a fuse with the identical value
4| Phase switch| To set the required phase ( 0° / 180° )
5| Low pass filter| To adjust the required crossover point. Frequencies above
the selected crossover point will be filtered (30 Hz to 250 Hz)
7| Sensitivity control| Controller to adjust the input sensitivity
8| 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
9| 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
10| Status indication| POWER (green) ok (correct operation) PROTECT (red)
error (protection mode)
11| Remote wire socket| To connect the wired remote control
12| Bass Boost control| To adjust the bass boost level ( 0 to +12 dB @ 45 Hz)
13| Linked mode switch| When using two identical amplifiers in linked mode the
switch at one of the amplifiers must be set to the MASTER position, while the
other amplifier must be set to the SLAVE position. Connect the input signal to
the MASTER amplifier and adjust settings at this amplifier, only
14| Link mode socket| To connect two identical amplifiers for linked mode
using a mono RCA cable
Trouble shooting guide
| 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
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
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>