Representing the entry level of GROUND ZERO, the IRIDIUM line offers a lot of useful features and an amazing performance.
The range contains a variety of affordable amplifiers, speakers and subwoofers for the daily use and for SPL purpose.
These are available as single drivers for custom-built applications as well as in loaded passive and active enclosures.

Home Audio

IRIDIUM Amplifier
The range of amplifiers contains a variety of affordable models for the daily use and for SPL purpose. The feature list includes the most important functions like high-level input with auto turn-on or a remote control for the low impedance stable mono amplifiers.
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GZIA 1.700
Read more1-channel high quality class A/B amplifier
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GZIA 1.1500D
Read more1-channel high quality class D amplifier
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GZIA 1.1150D
Read more1-channel high quality class D amplifier
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GZIA 2.135
Read more2-channel high quality class A/B amplifier
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GZIA 2.240
Read more2-channel high quality class A/B amplifier
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GZIA 2.85
Read more2-channel high quality class A/B amplifier
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GZIA 4.120
Read more4-channel high quality class A/B amplifier

IRIDIUM DSP Products
Amplifiers with an ISO harness are easy to integrate into an existing audio system. There is no additional wiring needed. In case the car has a brand-specific connector, the car audio market offers a wide range of adapters to convert OEM head units to the ISO standard.

IRIDIUM Speaker Systems
The IRIDIUM line includes a wide range of coaxial and component speaker systems in the favorable price segment including some models with a particularly low installation depth.
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GZIF 69
Read more6×9″ 3-way coaxial speaker system
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GZIC 165.2
Read more165 mm / 6.5″ 2-way component speaker system
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GZIC 165.2SPL
Read more165 mm / 6.5″ 2-way SPL component speaker system
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GZIC 650FX
Read more165 mm / 6.5″ 2-way component speaker system
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GZIF 6.5
Read more165 mm / 6.5″ 2-way coaxial speaker system
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GZIF 6501FX
Read more165 mm / 6.5″ 2-way coaxial speaker system
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GZIC 130.2
Read more130 mm / 5″ 2-way component speaker system
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GZIF 5.2
Read more130 mm / 5″ 2-way coaxial speaker system
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GZIF 5201FX
Read more130 mm / 5″ 2-way coaxial speaker system
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GZIC 400FX
Read more100 mm / 4″ 2-way component speaker system
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GZIF 4.0
Read more100 mm / 4″ 2-way coaxial speaker system
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GZIF 4001FX
Read more100 mm / 4″ 2-way coaxial speaker system

IRIDIUM Speaker Components
The IRIDIUM line includes a wide range of coaxial and component speaker systems in the favorable price segment and a separately available tweeter.

Car Specific Products
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IRIDIUM Subwoofer
The subwoofers of the IRIDIUM line are available as SPL models or Street versions for daily use.
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GZIW 12XSPL-D2
Read more30 cm / 12″ high quality SPL subwoofer
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GZIW 12XSPL-D2 PINK
Read more30 cm / 12″ high quality SPL subwoofer
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GZIW 300
Read more30 cm / 12″ high quality subwoofer
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GZIW 10SPL
Read more25 cm / 10″ high quality SPL subwoofer
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GZIW 250
Read more25 cm / 10″ high quality subwoofer
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GZIW 200
Read more20 cm / 8″ high quality subwoofer
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GZIW 165
Read more16.5 cm / 6.5″ high quality subwoofer

IRIDIUM Subwoofer Boxes
A subwoofer can cover all demands on bass reproduction in a suitable housing. The IRIDIUM series offers a wide selection of passive models as well as some active versions with an integrated amplifier.
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GZ BASS KIT 12.300X-II
Read more30 cm / 12″ vented subwoofer loaded enclosure with separate amplifier
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GZIB 200XBR
Read more20 cm / 8″ vented subwoofer loaded enclosure
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GZIB 20BR
Read more20 cm / 8″ vented subwoofer loaded enclosure
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GZIB 20BR-ACT
Read more20 cm / 8″ vented subwoofer loaded active enclosure
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GZIB 25BR
Read more25 cm / 10″ vented subwoofer loaded enclosure
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GZIB 25BR-ACT
Read more25 cm / 10″ vented subwoofer loaded active enclosure
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GZIB 30BR
Read more30 cm / 12″ vented subwoofer loaded enclosure
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GZIB 30BR-ACT
Read more30 cm / 12″ vented subwoofer loaded active enclosure
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GZIB 250XBR
Read more25 cm / 10″ vented subwoofer loaded enclosure
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GZIB 300XBR
Read more30 cm / 12″ vented subwoofer loaded enclosure
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GZIB 2.300XBR
Read more2x 30 cm / 12″ vented subwoofer loaded enclosure
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GZIB 2.30BR
Read more2x 30 cm / 12″ vented subwoofer loaded enclosure
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GZIB 12SPL
Read more30 cm / 12″ vented SPL subwoofer loaded enclosure
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GZIB 3000XSPL
Read more30 cm / 12″ vented SPL subwoofer loaded enclosure
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GZIB 2.12SPL
Read more2x 30 cm / 12″ vented SPL subwoofer loaded enclosure
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GZIB 2.3000XSPL
Read more2x 30 cm / 12″ vented SPL subwoofer loaded enclosure
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GZIB 200XBR-ACT
Read more20 cm / 8″ vented subwoofer loaded active enclosure
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GZIB 250XBR-ACT
Read more25 cm / 10″ vented subwoofer loaded active enclosure
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GZIB 300XBR-ACT
Read more30 cm / 12″ vented subwoofer loaded active enclosure

Marine/ATV
Since listening to favorite music isn´t limited to cars, GROUND ZERO offers a particular speaker for environments with special requirements to the construction and water resistance.A sophisticated RADIOACTIVE MARINE coaxial speaker is available in white finish, suitable for places with high humidity such as bathrooms and pool areas or even for off-shore applications with occasionally appearing direct splashing water such as on outer decks or on leisure boats.

IRIDIUM Accessories
In this category there are crossovers for loudspeakers. These can be used to combine individual components into a passive system.

IRIDIUM Damping
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IRIDIUM Headphones
If you would like to enjoy the typical GROUND ZERO sound not only in your vehicle, you may choose one of the two headphones.
Both of them delivering a distinctive bass response and the dynamic sound character.