Ground Zero Uranium GZUA 4SQ 4-channel amplifier

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

Ground Zero Uranium GZUA 4SQ 4-channel amplifier

4-channel amplifier, Class A/B, variable BIAS, gold-plated connectors.
Frequency response 10Hz-30kHz, stable power supply, flat heat sink.
Excellent sound, eye-catching design, high-quality sound concepts.
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Ground ZeroIridium GZIK 165SPL

B2 AudioRage 2000

Uranium GZUA 4SQ by Ground Zero

"Experience the Uranium GZUA 4SQ from Ground Zero - a top-class 4-channel amplifier for any demanding audio system. Thanks to the Class A/B technology and the option for variable BIAS adjustment, this amplifier delivers excellent sound. The striking design with a flat heat sink and embossed Ground Zero lettering leaves nothing to be desired. With gold-plated connections, the Uranium GZUA 4SQ stands for absolute quality and trouble-free sound experiences. Let your music come alive in a new sound!"

properties

4-Channel Sound Amplifier
Variable BIAS setting
Class AB Technology
Variable active crossover with bypass function
Stable power supply
Gold-plated connectors
Flat heatsink with engraved Ground Zero lettering
For high-quality sound concepts

Technical Data

Execution: Sound Quality Amplifier
Channels: 4
4x 115 WRMS @ 4 ohm
4 x 185 WRMS @ 2 ohm
2x 440WMAX @ 4 ohm
Frequency response: 10 Hz – 30 kHz
Dimensions (W x L x H): 209 x 360 x 46 mm

Frequent questions about Uranium GZUA 4SQ

Welche Leistungsdaten hat der Uranium GZUA 4SQ Verstärker von Ground Zero?

The Uranium GZUA 4SQ from Ground Zero is a 4-channel sound amplifier that operates with Class AB technology. The performance specifications are impressive: you get 4 x 115 WRMS at 4 Ohm, 4 x 185 WRMS at 2 Ohm, and the maximum output power reaches 2 x 440W at 4 Ohm. These power values allow you to operate even demanding audio systems. Particularly noteworthy is the frequency response of the amplifier, which ranges from 10 Hz to 30 kHz, ensuring that sound quality is maintained across all frequency ranges.

Wie beeinflusst die Class AB Technologie die Leistung des Uranium GZUA 4SQ?

The Class AB technology of the Uranium GZUA 4SQ from Ground Zero combines the advantages of Class A and Class B amplifiers. This technology ensures high sound quality while improving energy efficiency. As a result, less heat is generated, which extends the lifespan of the amplifier and minimizes sound distortion. The Class AB circuit also allows for clean signal transmission, which is particularly noticeable at higher volumes.

Welche Funktion bietet die variable BIAS Einstellung beim Uranium GZUA 4SQ?

The variable BIAS setting of the Uranium GZUA 4SQ from Ground Zero allows you to adjust the quiescent current of the amplifier. This adjustment directly affects the sound of the amplifier and helps to find a balance between minimal distortion behavior and optimal heat development. Especially in demanding audio configurations, this allows the sound to be optimized according to personal preferences. For audiophiles, this is a clear advantage, as it allows for finer tuning of the amplifier.

Welche Vorteile bietet die variable Aktivweiche des Uranium GZUA 4SQ?

The variable active crossover with bypass function of the Uranium GZUA 4SQ allows for the adjustment of frequency filtering directly in the amplifier. This is particularly useful for emphasizing or attenuating certain frequency ranges, depending on the requirements of the speakers or personal sound preferences. The bypass function allows the crossover to be completely deactivated, which can be advantageous in certain setups or when using external crossovers. This highlights the versatility of the amplifier, as it can be adapted to different acoustic conditions.

Wie ist die Verarbeitung und das Design des Uranium GZUA 4SQ Verstärkers?

The amplifier Uranium GZUA 4SQ from Ground Zero features a flat design with an elegant heat sink that ensures effective heat dissipation. The housing is adorned with an engraved Ground Zero logo, giving the amplifier an aesthetically pleasing appearance. The gold-plated connections emphasize the high quality of the product and ensure reliable signal transmission by minimizing signal loss. All of this promotes above-average sound quality and durability.

Welche Abmessungen hat der Uranium GZUA 4SQ und worauf sollte man bei der Installation achten?

The dimensions of the Uranium GZUA 4SQ are 209 mm in width, 360 mm in length, and 46 mm in height. When installing, it is important to ensure that there is sufficient space for ventilation to avoid overheating of the amplifier. Since the amplifier is relatively flat, it is well-suited for installations where space is limited. Proper wiring is also important to ensure the best possible signal quality and to protect the amplifier from mechanical stress.

Welche Rolle spielen die goldbeschichteten Anschlüsse bei der Klangqualität des Uranium GZUA 4SQ?

The gold-plated connectors of the Uranium GZUA 4SQ guarantee low-loss signal transmission. Gold is a good conductor and also provides protection against corrosion, ensuring a consistent connection over time. A stable connection is essential to avoid signal losses and the associated sound impairments. In conjunction with the powerful circuit technology, this ensures uninterrupted and high-quality sound. This aspect is particularly important for high-end audio systems.

Wie wirkt sich die Frequenzgangbreite des Uranium GZUA 4SQ auf den Klang aus?

The frequency response of the Uranium GZUA 4SQ ranges from 10 Hz to 30 kHz, which means that an extremely wide audio spectrum can be reproduced. This broadband capability allows the amplifier to accurately reproduce both very low and extremely high frequencies. This is particularly beneficial for music lovers who value the finest sonic details. The bass sounds fuller and the highs clearer, without any loss of quality, resulting in the amplifier delivering a particularly balanced sound image.

Wie passt der Uranium GZUA 4SQ generell in anspruchsvolle Audio-Konzepte?

The Uranium GZUA 4SQ from Ground Zero has been specifically designed for demanding audio concepts, providing the necessary flexibility and performance required for high-quality systems. With its versatile adjustment options such as the variable BIAS setting and the active crossover, which comes with a bypass option, it can be adapted to various acoustic and spatial requirements. Together with its high output power, this amplifier enables individual sound configurations that support even the most demanding audio systems.

Welche Tipps zur Platzierung und Einrichtung des Uranium GZUA 4SQ Verstärkers gibt es?

When setting up the Uranium GZUA 4SQ, care should be taken to install it in a well-ventilated area to avoid overheating. The flat design facilitates integration into system installations with limited space. The connection cables should be neatly arranged to avoid signal loss and prevent mechanical damage. For optimal performance, it is important to adjust the variable BIAS and the active crossover according to the speaker specifications and personal sound preferences.

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 9059 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 👌🏽

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11/13/2025

Anonym

.

Geht echt gut und leicht zum einstellen

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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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Arthur Mol

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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