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Ground Zero Hydrogen GZHW 30 12" (30cm) Subwoofer
SKU:  GZHW-30-D1

Hydrogen GZHW 30

SKU:  GZHW-30-D1

Technical Highlights

  • 3000 Watt SPL, impedance of 2x1 Ohm, 75 mm copper voice coil.
  • Power handling up to 1500 Watt RMS, 85 dB efficiency, Xmax 45 mm.
  • Klippel® optimized, massive aluminum die-cast basket, reinforced paper cone.
  • More technical details
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Normal price €349,00
Normal price -13% €399,00 Selling price €349,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Impedance: D1 (2x1 Ohm)
Delivery
Jun 5, - Jun 8,
x piece
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Normal price €349,00
Normal price €399,00 Selling price €349,00

Hydrogen GZHW 30 by Ground Zero

The Hydrogen GZHW 30 from Ground Zero is a 12-inch high-performance Subwoofer with a power handling capacity of 1500 watts RMS and an SPL output of 3000 watts. The device features a 75 mm copper voice coil and a reinforced paper cone. The construction is based on a solid aluminum die-cast basket and a long-stroke U-shaped surround. Additional features include a 2-layer polycotton centering and a carbon dust cap. The Klippel-optimized unit is available in versions with an impedance of 2x1 ohm or 2x2 ohm. The efficiency is rated at 85 dB.

Features
  • 12-inch (30 cm) Subwoofer
  • High-performance design
  • Power handling: 1500 watts RMS
  • Power handling: 3000 watts SPL
  • Power recommendation: 1000 – 3000 watts
  • 75 mm copper voice coil
  • Reinforced paper cone
  • Solid aluminum die-cast basket
  • Long-stroke U-shaped surround
  • 2-layer polycotton centering
  • Carbon dust cap
  • Klippel-optimized
Technical Specifications
  • Diameter: 300 mm
  • Impedance: 2x1 ohm or 2x2 ohm
  • Efficiency: 85 dB
  • Max. excursion (Xmax): 45 mm
  • Mounting diameter: 284 mm
  • Mounting depth: 198 mm
  • Resonance frequency (Fs): 39.1 Hz
  • Total Q factor (Qts): 0.56
  • Equivalent air volume (Vas): 17.6 liters

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Ground Zero Hydrogen GZHW 30 Datasheet

Frequently Asked Questions about Hydrogen GZHW 30


What performance features does the GZHW 30 from Ground Zero offer?

The GZHW 30 from Ground Zero offers impressive performance features, including a maximum SPL output of 3000 watts and a power handling capacity of 1500 watts RMS. The Subwoofer features a 75 mm copper voice coil and is equipped with a reinforced paper cone that ensures optimal performance. The efficiency is 85 dB, making it ideal for demanding audio installations. Additionally, it includes a long-stroke U-shaped surround, a 2-layer polycotton spider, and a carbon dust cap that contribute to the overall performance. The power handling capacity and performance make the GZHW 30 the optimal choice for high-performance audio playback.

What materials are used in the Ground Zero GZHW 30 Subwoofer?

The GZHW 30 Subwoofer from Ground Zero uses a combination of high-quality materials to ensure excellent performance and durability. The massive aluminum die-cast basket provides a robust structure, while the reinforced paper cone delivers optimal sound with minimal distortion. The 75 mm copper voice coil is crucial for transforming electrical energy into mechanical energy. Furthermore, the Subwoofer features a carbon dust cap that protects the sensitive internal components. The U-shaped surround with long-stroke design allows for greater excursion without compromising sound quality, which is especially important at high volumes.

What are the dimensions of the GZHW 30 Subwoofer from Ground Zero?

The GZHW 30 from Ground Zero has specific dimensions that need to be considered during installation. The Subwoofer has a diameter of 30 cm and a cutout opening of 284 mm. The mounting depth is 198 mm. These measurements are crucial, especially when integrating the Subwoofer into an existing enclosure. The maximum excursion, measured with Xmax, is 45 mm, which describes the physical range of the oscillation movement. Due to the impedance options of 2x1 ohm or 2x2 ohm, it offers flexibility in integration into various audio systems.

What is the frequency range of the Ground Zero GZHW 30?

The Ground Zero GZHW 30 is optimized for low-frequency reproduction. With a resonance frequency (Fs) of 39.1 Hz, it targets bass enthusiasts who demand low-frequency precision, especially when music genres with deep bass are at the forefront. This parameter indicates the frequency at which the Subwoofer begins to operate optimally. The total quality factor (Qts) of 0.56 also indicates the efficiency ratio, which ensures precise and powerful bass in a tuned enclosure. The Vas, the equivalent air volume, is 17.6 L and influences the enclosure size for optimal sound delivery.

What is the maximum displacement of the Ground Zero GZHW 30?

The maximum displacement of the Ground Zero GZHW 30 is specified with an Xmax of 45 mm. This size indicates how far the diaphragm of the Subwoofer can move from its rest position before distortion occurs. A larger displacement allows the Subwoofer to reproduce deep frequencies with greater precision and clarity at high volumes. Especially if you enjoy listening to music loudly and prefer deep, powerful bass, a high Xmax is crucial. The combination with the long-stroke U-suspension ensures optimal performance without loss in sound quality.

What mounting options does the GZHW 30 from Ground Zero have?

The GZHW 30 is designed for an installation that requires a cutout of 284 mm and a mounting depth of 198 mm. These dimensions are to be integrated into standard enclosures for 12-inch Subwoofers. Due to its mass with the aluminum die-cast basket, it is advisable to use stable mounting frames that can support the weight. The compatible impedance of 2x1 Ohm or 2x2 Ohm also offers flexibility for various connection scenarios based on the amplified audio system. For example, it can be integrated in parallel or series into complex audio playback systems without losing power.

Why is the copper voice coil in the GZHW 30 from Ground Zero significant?

The copper voice coil in the GZHW 30, with a diameter of 75 mm, is central to the electrical and thermal performance. This coil manages the current flow and acts as an electromagnet that vibrates the diaphragm of the Subwoofer to produce sound. Copper is chosen for its excellent electrical conductivity and heat resistance, which helps minimize energy loss during conversion. This keeps the Subwoofer efficient and reliable even at high volumes and intense bass demands. This makes the choice of the copper voice coil an essential technical feature.

How does the reinforced paper cone of the GZHW 30 affect the sound?

The reinforced paper cone of the GZHW 30 from Ground Zero is designed to deliver an ideally balanced sound profile. Paper inherently offers high stiffness at low mass, contributing to low distortion and high acoustic output. The additional reinforcement provides increased durability and a longer lifespan by making the cone resistant to mechanical deformation at high excursions. This is particularly beneficial for ensuring consistent sound quality across the entire frequency range, even when you push the subwoofer to its maximum capacity. Reinforced paper cones are a classic choice for high-performance subwoofers.

Does the GZHW 30 meet high efficiency requirements?

The GZHW 30 from Ground Zero has a respectable efficiency rating of 85 dB. While this value is not among the highest, it offers a good balance between volume and energy consumption, which is respectable for a 12-inch subwoofer. A subwoofer with such efficiency can play louder with the use of more powerful amplifiers without consuming disproportionately more power. Efficiency is particularly relevant for car audio systems, where the power source is limited. Since the GZHW 30 is designed for high-performance applications, it can reach its full potential with a powerful amplifier.

How has the GZHW 30 from Ground Zero been optimized?

The GZHW 30 is Klippel® optimized, an important practice for maximizing the performance of a speaker system. This optimization refers to the use of Klippel measurement techniques that improve the excursion to minimize distortion and keep the sound clear across the entire frequency range. Especially for subwoofers, the correct tuning of mechanical and electrical parameters is crucial for reproducing precise and dynamic bass. Such technical measures ensure that the GZHW 30 subwoofer bypasses the usual performance limitations and achieves its maximum efficiency, particularly under high load.

Manufacturer information / responsible person

Ground Zero GmbH
Erlenweg 25
85658 Egmating, Germany

Tel +49 (0)8095 873 830

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

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