Ground Zero Iridium GZIA 4.120 4-channel amplifier

Max, Mikael and 53k+ customers already with Masori sound upgrade

Ground Zero Iridium GZIA 4.120 4-channel amplifier

4-channel amplifier, 4x120W RMS, Class AB.
Active crossover, bass boost, stable power supply, generous connections.
Black anodized heatsink, auto-on function, attractive design.
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€186,15

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Ground ZeroIridium GZIA 2.85

Edge Car AudioStreet EDS500.2FD-E0

Iridium GZIA 4.120 by Ground Zero

The Iridium GZIA 4.120 is a 4-channel amplifier from Ground Zero, characterized by its Class A/B circuitry and integrated active crossover. This model features a black anodized heat sink and provides a stable power supply. It is distinguished by generously sized connections and an auto-on function at its high-level input. The output power is 70 watts RMS for 4 ohms and 120 watts RMS for 2 ohms. Its frequency response of 10 Hz to 30 kHz is also impressive.

Features

4-channel power amplifier
Class AB Technology
Variable Active Crossover and Bass Boost
Stable power supply
Generously sized connections
Black anodized heat sink with Ground Zero lettering
High-level input with auto-on function

data

Output power (@ 4Ω) 4x 70 Watts RMS
Output power (@ 2Ω) 4x 120 Watts RMS
max. output power (CEA-2006A / 10%THD+N) 2x275 Watts
Output power (@ 4Ω) bridged 2x240 Watts RMS
Frequency response 10 Hz – 30 kHz
Dimensions (W x L x H) 192 x 284 x 49 mm

Ground Zero Iridium GZIA 4.120 Datenblatt

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Frequent questions about Iridium GZIA 4.120

Welche Leistung bietet der Iridium GZIA 4.120 Verstärker?

The Iridium GZIA 4.120 from Ground Zero delivers impressive performance with a 4-channel output structure. At a load of 4 ohms, the amplifier reaches 70 watts RMS per channel. At 2 ohms, the power increases to 120 watts RMS per channel. This offers flexibility for different speaker setups. Bridged, at 4 ohms, the output power is 240 watts RMS per channel, which is ideal for subwoofer configurations. The maximum output power is 275 watts, measured according to CEA-2006A standards, at 10% THD+N. These performance features make the Iridium GZIA 4.120 a strong addition to any car audio system.

Was sind die Abmessungen des Iridium GZIA 4.120?

The Iridium GZIA 4.120 has compact dimensions that make it very flexible in many car installations. It measures 192 mm in width, 284 mm in length, and 49 mm in height. These dimensions allow for easy installation in various locations within the vehicle, whether under the seat or in the trunk. Due to its low height, it fits easily into tight spaces where other amplifiers might have difficulties. When installing, make sure to leave enough space for effective ventilation and cooling to ensure optimal performance.

Welche Technologien nutzt der Ground Zero Iridium GZIA 4.120?

The Iridium GZIA 4.120 is equipped with proven Class A/B amplifier technology. This technology delivers high sound fidelity and efficiency, meeting the demands for excellent sound as well as power. Another technological highlight is the integrated active crossover, which allows for precise control and adjustment of frequencies. The technical features are complemented by a stable power supply and an auto-on function that is activated via the high-level input, ensuring ease of use and flexibility in operation.

Welche Frequenzen kann der Iridium GZIA 4.120 reproduzieren?

The frequency response of the Iridium GZIA 4.120 from Ground Zero ranges from 10 Hz to 30 kHz. This means that the amplifier is capable of accurately reproducing both very low and extremely high frequencies. Especially if you enjoy listening to music loudly, this wide frequency range is ideal for experiencing a full soundscape. You can rely on both bass lines and high tones being reproduced clearly and without distortion. The amplifier thus perfectly adapts to the various audio requirements in a vehicle.

Wie erfolgt die Kühlung beim Ground Zero Iridium GZIA 4.120?

The Ground Zero Iridium GZIA 4.120 is equipped with a black anodized heat sink that efficiently dissipates heat. The heat sink also features the Ground Zero logo, which not only adds functional but also aesthetic value. Anodizing increases durability and resistance to environmental influences, which is particularly important in variable vehicle environments. During installation, care should be taken to ensure that there is enough space for adequate air circulation to maximize cooling efficiency and thus ensure the optimal performance of the amplifier.

Ist der Iridium GZIA 4.120 Verstärker kompatibel mit gängigen Automarken?

The Iridium GZIA 4.120 is versatile due to its compact dimensions and can be installed in most vehicle models, provided there is enough space for the dimensions of 192 x 284 x 49 mm. It is important to ensure that the installation site in the vehicle can accommodate these dimensions before installation. While the amplifier itself does not contain specific car brand information, it fits a variety of models, as long as the physical dimensions align with the intended installation site. This offers flexibility for users of various types of vehicles.

Wie beeinflusst die Aktivweiche die Klangqualität beim Iridium GZIA 4.120?

The integrated active crossover of the Iridium GZIA 4.120 allows for precise filtering and adjustment of frequency ranges. This ensures that each speaker only receives the frequencies for which it is optimized. This significantly improves overall sound quality by minimizing distortion and achieving clearer, more detailed audio playback. Whether you prefer deep bass or crystal-clear highs, the variable active crossover enables personalized sound shaping. Thus, it plays a crucial role in adapting to individual listening preferences and specific requirements of the speaker system.

Welche Anschlussmöglichkeiten bietet der Ground Zero Iridium GZIA 4.120?

The Iridium GZIA 4.120 features generously sized connection options that are flexible and user-friendly. These heavy-duty connections ensure stable links and minimize signal loss, thereby guaranteeing consistently high audio quality. The connections are designed to support various installation methods and are suitable for both hobbyists and professional installers. Strong cables can also be easily integrated, which supports the amplifier's performance. It is important to note that the amplifier's connections should be combined with high-quality cables to achieve the best results.

Wie funktioniert die Auto-On Funktion beim Iridium GZIA 4.120?

The Auto-On function of the Iridium GZIA 4.120 is activated via the high-level input. This function allows the amplifier to turn on automatically as soon as a signal is detected. This means that no separate remote cable from the car radio to the amplifier is required, which simplifies installation and reduces cable clutter. This function is particularly useful for OEM head units that do not have a dedicated remote output. Connecting the speaker outputs of the factory radio to the high-level input is sufficient to activate the amplifier, which increases user-friendliness.

Welche Vorteile bietet die Class A/B Verstärkertechnologie im Iridium GZIA 4.120?

The Class A/B technology of the Iridium GZIA 4.120 combines the advantages of Class A and Class B amplifiers. It offers excellent sound fidelity, as it minimizes distortion and exhibits high performance in terms of efficiency. This amplifier class is particularly known for its harmonic output, which ensures sound precision for both low and high frequencies. Class A/B amplifiers, like the Iridium GZIA 4.120, are characterized by a moderate efficiency that provides a compromise between maximum sound quality and energy efficiency, making them ideal for audio enthusiasts and discerning listeners.

Herstellerinformation/verantwortliche Person

Ground Zero GmbH
Erlenweg 25
85658 Egmating, Germany

Tel +49 (0)8095 873 830

E-Mail: info@ground-zero-audio.com

Let customers speak for us

from 9061 reviews

Jean François Tedesco

Alpine tube 12 bazooka , Un sacré caisson de basses ,

Un sacré caisson de basses , j'ai eu un 46 cm killer 454 de l'époque année 90 , qui tapait vraiment bien , mais ce tube est bien plus fort et plus ample, toutes les basses passent sans problème, avec une télécommande à réglage multiples taramps eq bass , et un ampli Machete de masori , le couple est parfait, personnellement j'en ai deux tubes et ça donne énormément, avec l'ampli 2 x 530 en 4 ohms . Parfois le plus simple est bien meilleur et plus durable .

SWT-12S4

11/29/2025

Bartosz Erber

X-10 v3 d2

Hallo. Sehr freundlicher Kundenservice und schnelle Auftragsabwicklung. Der Lautsprecher ist brandneu und unbenutzt. Ich habe ihn vor einiger Zeit gekauft, aber erst kürzlich das Gehäuse fertiggestellt. Die Parameter entsprechen den Herstellerangaben: 42,5 Liter Nettovolumen, abgestimmt auf 32 Hz und 21 mm starkes Sperrholz. Ich hatte noch nie einen 10-Zoll-Lautsprecher und wusste nicht, was mich erwartet, aber das Ergebnis hat meine kühnsten Erwartungen übertroffen. Der Bass aus einem so kleinen Lautsprecher in einem so kleinen Gehäuse ist einfach unglaublich. Um den X-10 zu kaufen, habe ich meinen DD 712f in einem 70-Liter-Gehäuse verkauft, und der war ein Volltreffer. Der Sundown ist in jeder Hinsicht besser. Ich kann diesen Lautsprecher und den Händler, bei dem ich ihn gekauft habe, wärmstens empfehlen. Beste Grüße.

X10 v3

11/18/2025

tatazz

Est arrivé à la maison très rapidement

Est arrivé à la maison très rapidement 👌🏽

Hydrogen GZHW 25XSPL

11/13/2025

Anonym

.

Geht echt gut und leicht zum einstellen

GPX2200.1D

11/12/2025

Georges, Alexander, Vainohoarii NAGLE

Très satisfaisant.

Bonjour, je reçu le colis bien emballé.
Je recommande vivement, la livraison est gratuite et rapide, je recommanderai sûrement encore chez Masori.

RS-YS12

11/10/2025

SPYRIDON D.

Bought again

Bought again. Great price, fast delivery, nice !

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Perfect sound, I bough 2 pairs for the door and

Perfect sound, I bough 2 pairs for the door and the difference between these and the stock ones are huge

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christopher Martinez

Deaf bonce

Très bonne qualité
Envoie rapide et soigné
Je recommande

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Top Upgrade für Canton System

Ich habe den Woofer in meinem Skoda Octavia 3 mit Canton Soundsystem eingebaut.
Der Einbau war Plug & Play, alles passt perfekt ohne Anpassungen.
Im Vergleich zum originalen Canton Subwoofer spielt dieser deutlich stärker, präziser und mit mehr Druck.
Ich kann den Woofer jedem empfehlen, der mehr Bass aus dem Canton-System herausholen möchte – lohnt sich absolut!

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