Ground Zero Hydrogen GZHW 12SPL-D2 FLAT 12" (30cm) Flat Subwoofer

Name: Ground Zero Hydrogen GZHW 12SPL-D2 FLAT 12 inch Flat Subwoofer
Brand: Ground Zero
Price: 364.65 EUR
Availability: InStock

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Ground Zero Hydrogen GZHW 12SPL-D2 FLAT 12" (30cm) Flat Subwoofer

700/1200 watts power handling, 2x 2 ohms impedance, 88 dB efficiency.
63mm copper voice coil, flat 30 cm diameter, 118 mm depth.
21 Hz resonance frequency, 32 mm maximum displacement, sandwich type.
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Hydrogen GZHW 12SPL-D2 FLAT by Ground Zero

The Hydrogen GZHW 12SPL-D2 FLAT is a 12-inch flat subwoofer. Its flat design and massive aluminum die-cast basket stand out. Equipped with a Klippel® optimized design, a sandwich paper cone, and a long-throw U-surround, this subwoofer is ready to impress you audiotechnically. With its 63mm copper voice coil and pressure contact terminal, this subwoofer is a successful combination of design and performance. Want punchy bass and precise sound quality? Then this subwoofer will meet all your requirements.

Features

30 cm flat SPL subwoofer
Klippel® optimized
Sandwich paper cone
Long-throw U-surround
Massive aluminum die-cast basket
63 mm copper voice coil
4-layer copper voice coil
Pressure contact terminal

Technical Data

Version: High-quality flat SPL subwoofer
Diameter: 30 cm
Power handling (RMS/SPL): 700 / 1200 Watts
Impedance: 2x 2 Ohms
Efficiency: 88 dB
Recommended power: 500 – 1200 Watts
Voice coil: 63 mm copper
Cone type: Sandwich paper
Max. excursion (Xmax): 32 mm
Mounting Ø: 284 mm
Mounting depth: 118 mm
Resonant frequency (Fs): 21 Hz
Total Q factor (Qts): 0.30
Equivalent air volume (Vas): 19.7 L

Ground Zero Hydrogen GZHW 12SPL-D2 FLAT Datenblatt

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Frequent questions about Hydrogen GZHW 12SPL-D2 FLAT

Wie unterscheidet sich der Hydrogen GZHW 12SPL-D2 FLAT von anderen Subwoofern?

The Hydrogen GZHW 12SPL-D2 FLAT is characterized by its flat design and the solid aluminum die-cast basket. Notably, it features a 63 mm thick copper voice coil with a 4-layer winding, which, in combination with the Klippel® optimized design, ensures impressive sound quality. The sandwich paper diaphragm and the long-stroke U-suspension enable precise bass reproduction, while the efficiency is at 88 dB. An additional highlight is the pressure contact connection, which guarantees a simple and secure connection. These features make this subwoofer an excellent choice for audiophile users who value design and performance.

Welche technische Leistung bietet der Hydrogen GZHW 12SPL-D2 FLAT?

This subwoofer offers an RMS power of 700 watts and a maximum SPL capacity of 1200 watts, making it predestined for powerful bass frequencies. The recommended amplifier power ranges from 500 to 1200 watts, allowing for a wide range of compatible amplifiers. With an efficiency of 88 dB, a high efficiency in converting electrical energy into acoustic power is achieved.

Wie beeinflusst die Bauform des Hydrogen GZHW 12SPL-D2 FLAT die Installation im Fahrzeug?

Thanks to its flat design with a installation depth of only 118 mm, the Hydrogen GZHW 12SPL-D2 FLAT is ideal for vehicles with limited space. The installation diameter of 284 mm allows for a compact installation that can be implemented in many vehicle models without major modifications. Vehicles with smaller trunks particularly benefit from this design advantage.

Welche Materialien werden beim Hydrogen GZHW 12SPL-D2 FLAT verwendet?

The Hydrogen GZHW 12SPL-D2 FLAT is made from high-quality materials such as a sandwich paper membrane and an aluminum die-cast basket. The 63 mm copper voice coil is multi-layered, which not only increases durability but also improves sound quality. The long-stroke U-shaped surround allows for a high displacement of up to 32 mm, resulting in a voluminous and detailed bass.

Welche Klangeigenschaften bietet der Hydrogen GZHW 12SPL-D2 FLAT durch die Verwendung von Klippel® Technologie?

The Klippel® technology achieves an optimized magnetic field distribution and mechanical linearity, resulting in precise and distortion-free bass reproduction. This allows for enhanced sound fidelity, even at high volumes, thereby improving the overall listening experience. The technology also ensures improved electrical efficiency of the subwoofer and minimizes distortions that could arise from the movement of the diaphragm at high output levels.

Welche Parameter bestimmen die Bassqualität des Hydrogen GZHW 12SPL-D2 FLAT?

The sound quality of the Hydrogen GZHW 12SPL-D2 FLAT is defined by parameters such as the resonance frequency (Fs) of 21 Hz, total Q factor (Qts) of 0.30, and the equivalent air volume (Vas) of 19.7 L. These values indicate how the subwoofer responds to specific frequencies and how much air it can move, which is crucial for bass quality. Together, they allow for deep, resonant bass, ideal for use in sealed enclosures and at high volume.

Wie verspricht die langhubige U-Sicke des Hydrogen GZHW 12SPL-D2 FLAT eine verbesserte Soundleistung?

The long-stroke U-suspension of this subwoofer allows for a maximum displacement (Xmax) of 32 mm, resulting in greater handling of the speaker diaphragm. This design enhances the linearity of the diaphragm movement, thereby reducing distortion while achieving high sound pressure levels with low distortion. This feature is particularly useful for users who expect excellent bass reproduction in loud environments.

Welche Rolle spielt der Aluminium-Gusskorb beim Hydrogen GZHW 12SPL-D2 FLAT?

The aluminum casting basket of the Hydrogen GZHW 12SPL-D2 FLAT not only provides an extremely stable structure for the assembly parts but also effectively dissipates heat, improving thermal load capacity. This reduces the risk of overheating during intensive use. The casting basket also acts to reduce resonance, minimizing unwanted vibrations and resulting in a clear, uncolored sound.

Ist der Hydrogen GZHW 12SPL-D2 FLAT für den Einsatz mit verschiedenen Automarken geeignet?

With its installation diameter of 284 mm and its flat design, the Hydrogen GZHW 12SPL-D2 FLAT is compatible with common installation spaces of many vehicle types. The universal dimensions allow for easy adaptation; however, for vehicles with particularly small or unusually shaped speaker grill enclosures, it is advisable to measure the housing to ensure a precise fit. In typical passenger cars, however, installation is straightforward, allowing many car models to benefit from improved bass output.

Wie wirkt sich der Wirkungsgrad des Hydrogen GZHW 12SPL-D2 FLAT auf das Klangerlebnis aus?

The efficiency of 88 dB of the Hydrogen GZHW 12SPL-D2 FLAT ensures that a large part of the supplied energy is converted into acoustic power. This means that the subwoofer can deliver louder bass at the same amplifier power. The high efficiency allows the subwoofer to be operated with medium power amplifiers without compromising on volume or sound quality.

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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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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Deaf bonce

Très bonne qualité
Envoie rapide et soigné
Je recommande

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Preis/Leistung Qualität top!

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Anonym

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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