Vehicle Search

  3. Ground Zero Audio
  5. Hydrogen GZHW 20
Ground Zero Hydrogen GZHW 20 8" (20cm) Subwoofer
SKU:  GZHW-20-D1
700 Watt

Hydrogen GZHW 20

SKU:  GZHW-20-D1

Technical Highlights

  • 1500 Watt SPL power, impedance of 2x1 Ohm, 80 dB efficiency.
  • Copper 63 mm voice coil, resonance frequency of 38.3 Hz.
  • Mounting diameter 187 mm, mounting depth 145 mm, 2x2 Ohm impedance.
  • More technical details
00 d
00 h
00 m
00 s
€219,00
-12% €249,00 €219,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Impedance: D1 (2x1 Ohm)
Delivery
Jun 5, - Jun 8,
x piece
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • EPS
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • MobilePay
  • PayPal
  • Shop Pay
  • Twint
  • Union Pay
  • Visa
Klarna Pay conveniently in 12 interest-free installments at €18,25 with Klarna .

Your benefits at Masori

Seen cheaper elsewhere?

Shipping cost calculator

Expert Image

Rob

Expert Image

Max

Unsure if this product fits your car?

We help you – quickly, personally, and without obligation.

Response on weekdays within 24 hours
Ground ZeroHydrogen GZHW 25
Ground Zero-Hydrogen GZHW 25-10" (25cm) Subwoofer-masori-kaufen
Ground Zero-Iridium GZIF 4001FX-4" (10cm) Koaxial-Lautsprecher-masori-kaufen
Ground ZeroIridium GZIF 4001FX
Ground Zero-Hydrogen GZHW 20-8" (20cm) Subwoofer-masori-kaufen
€219,00
€249,00 €219,00

Hydrogen GZHW 20 by Ground Zero

The Ground Zero Hydrogen GZHW 20 is an 8-inch high-performance Subwoofer with a reinforced paper cone and a massive aluminum die-cast basket. The model is based on a Klippel-optimized design and uses a 63 mm copper voice coil. The power handling is rated at 700 watts RMS and 1500 watts SPL, while the efficiency is specified at 80 dB. For installation, a diameter of 187 mm and a depth of 145 mm are required. The Subwoofer is available in two impedance variants of 2x1 ohm or 2x2 ohm. Other mechanical components include a long-stroke sandwich surround, a 2-layer polycot centering, and a carbon dust cap.

Features
  • 8-inch (20 cm) Subwoofer
  • High-performance design
  • Power: 700 watts RMS
  • Power: 1500 watts SPL
  • Impedance: 2x1 ohm or 2x2 ohm
  • Reinforced paper cone
  • Massive aluminum die-cast basket
  • 63 mm copper voice coil
  • Klippel-optimized
  • Long-stroke sandwich surround
  • 2-layer polycot centering
  • Carbon dust cap
  • Installation diameter: 187 mm
  • Installation depth: 145 mm
Technical Specifications
  • Efficiency: 80 dB
  • Power recommendation: 50 – 1500 watts
  • Maximum displacement (Xmax): 40 mm
  • Resonance frequency (Fs): 38.3 Hz
  • Total quality factor (Qts): 0.381
  • Equivalent air volume (Vas): 4.77 liters

Your benefits at Masori

Ground Zero Hydrogen GZHW 20 Datasheet

Open datasheet

Frequently Asked Questions about Hydrogen GZHW 20

What power handling does the Ground Zero GZHW 20 Subwoofer offer?

The GZHW 20 from Ground Zero features an impressive power handling of 700 Watts RMS up to 1500 Watts SPL. This power range allows the subwoofer to be used in various applications, from relaxing background music to high-performance scenarios where the subwoofer delivers strong and deep bass. With a 63 mm copper voice coil, the subwoofer can efficiently convert energy and provide high volumes without distortion. Especially when operating a sound system that demands high power, the GZHW 20 is ideal for meeting your sound and volume requirements.

What materials are used in the GZHW 20 Subwoofer?

The GZHW 20 from Ground Zero uses high-quality materials to ensure robustness and durability. The heart of the subwoofer is a reinforced paper cone that is both lightweight and stiff, contributing to a precise and clear sound image. The massive aluminum die-cast basket provides a stable structure and minimizes vibrations that could distort the sound. A long-stroke sandwich surround supports a maximum excursion of 40 mm, while a carbon dust cap offers additional protection and an elegant appearance. These materials enable a high-quality sound experience for the discerning audio enthusiast.

What are the dimensions of the Ground Zero GZHW 20 Subwoofer?

The GZHW 20 has compact dimensions that make it suitable for various installation scenarios in vehicles. With a mounting diameter of 187 mm and a mounting depth of 145 mm, the subwoofer can be easily accommodated in many vehicles. These dimensions allow for flexible placement, even in tight spaces. It is important during installation to ensure that the mounting diameter is adhered to precisely to guarantee a secure fit. If you plan to install it in specific vehicle models, the dimensions of the available installation space must be considered to ensure a conflict-free installation.

What impedance options does the GZHW 20 Subwoofer offer?

The Ground Zero GZHW 20 offers two impedance options to choose from, either 2x1 Ohm or 2x2 Ohm. This flexibility makes it easier to integrate into existing audio systems and allows for various wiring configurations, including parallel or series. These variations increase the customization potential for a variety of amplifiers and system designs, supporting maximum performance and efficiency of the Subwoofer. The choice of a specific impedance should be made in relation to the amplifier used and the desired system layout to achieve optimal sound and the best possible performance.

How does the Klippel optimization affect the sound of the GZHW 20?

The Klippel optimization of the GZHW 20 ensures precise and harmonious sound reproduction. This technique ensures that the Subwoofer is perfectly balanced in its mechanics and magnetic field. This minimizes distortion, improves sound quality, and increases overall performance. Especially if you enjoy listening to music at high volumes, the Klippel optimization ensures that the Subwoofer remains clear and distortion-free even at high levels. It also contributes to better efficiency, allowing the Subwoofer to produce a richer sound while simultaneously increasing its durability at high levels.

What is the efficiency of the Ground Zero GZHW 20?

The Ground Zero GZHW 20 has an efficiency of 80 dB, which means it produces a sound pressure of 80 decibels with one watt of input signal. This efficiency is typical for Subwoofers in this power class and reflects how efficiently the Subwoofer converts input power into acoustics. Higher efficiency is advantageous in scenarios where energy efficiency and high sound pressure levels are important. Since the GZHW 20 is specifically designed for SPL applications, the efficiency combined with high durability allows for impressive bass reproduction even during energy-efficient operation.

What power is recommended for the GZHW 20?

For the Ground Zero GZHW 20, a power range of 50 to 1500 watts is recommended. This wide range allows for diverse applications, from subtle background music soundtracks to intense bass performances at maximum levels. The recommended minimum of 50 watts ensures that the Subwoofer delivers deep and clear bass even at lower levels. When planning your audio installation, the power capability of the amplifier used should be considered to avoid exceeding the recommended values, thus preventing potential damage from overload that could affect the longevity of the Subwoofer.

What are the Thiele/Small parameters of the GZHW 20?

The Thiele/Small parameters of the Ground Zero GZHW 20 include a resonance frequency (Fs) of 38.3 Hz, a total quality factor (Qts) of 0.381, and an equivalent volume (Vas) of 4.77 liters. These parameters help define the acoustic behavior of the Subwoofer and have a direct impact on bass reproduction and efficiency in the installed state. The resonance frequency reflects the frequency at which the Subwoofer begins to operate optimally, while the total quality factor describes the balance between electrical and mechanical damping characteristics. The equivalent volume indicates the air volume displacement, equivalent to the spring stiffness of the Subwoofer system.

How is the installation of the GZHW 20 Subwoofer done?

The installation of the Ground Zero GZHW 20 Subwoofer is relatively simple thanks to its compact dimensions. The installation requires a hole with a diameter of 187 mm, while the installation depth is 145 mm. These dimensions ensure that the Subwoofer fits easily into common box designs, whether for sealed enclosures or bass reflex systems. Before installation, you should ensure that the installation cavity provides enough space for the cast basket and that there is adequate ventilation. When connecting, attention must be paid to the correct wiring according to the desired impedance (2x1 Ohm or 2x2 Ohm).

What are the differences between the D1 and D2 variants of the GZHW 20?

The main differences between the D1 and D2 variants of the Ground Zero GZHW 20 Subwoofer lie in the impedance option. The D1 variant offers an impedance of 2x1 Ohm, while the D2 operates with 2x2 Ohm. These impedance differences provide various options for adapting to different amplifier systems and desired playback effects. Both models share the same high-quality construction components, including the reinforced paper cone, the aluminum cast basket, and the 63 mm copper voice coil. When choosing between the models, the decision should be based on the existing system configuration and the specific requirements for bass reproduction.

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

Let customers speak for us

from 9528 reviews
Thesis THG 1.5 II
Martin
Eingebaut in A-Säule, Klanglich sehr schön,

Eingebaut in A-Säule, Klanglich sehr schön, Pegelfest. Bin zufrieden.

Thesis THG 1.5 II
SLICKPROBOX6-V0
Sandro Keller
Sehr guter Klang, Top Preis und eine schnelle

Sehr guter Klang, Top Preis und eine schnelle Lieferung.

SLICKPROBOX6-V0
DB EDBPRO6-E3
Anonym
Top für den Preis !!!

Hören sich gut an!!! hätte ich nicht gedacht in der Preisklasse, vor allem der Pegel hab sie mit paar Axton Hochtönern verbaut und einem Kicker sub im Kofferraum und paar Rainbow Endstufen sauberer lauter klang bin sehr zufrieden mit dem Produkt. Langzeit noch keine Erfahrung da erst zwei Wochen verbaut

DB EDBPRO6-E3
Competition Series GS-14000.1
Henk van Dijk
Versterker was goed verpakt, En heb dit beest heeft zo veel power!

Versterker was goed verpakt, En heb dit beest gelijk getest op volume en klinkt geweldig op mijn subwoofers, Het geluid vervormd niet zelfs op vol volume klinken de bas tonen zuiver, Ben vooral blij dat ik deze versterker gekocht heb. Ik geniet van elke seconde in mijn auto,Ik kon het merk niet van de versterker [gs-audio] maar het is top merk en het is met de hand gemaakt en komt uit Italy is echt goed gemaakt alleen mijn auto heeft het zwaar te verduren alles beweegt, Dus top aankoop gedaan.

Competition Series GS-14000.1
UGMB 100 CNX
RAUL RUIZ
muy buena calidad compre todo el conjunto

muy buena calidad compre todo el conjunto superior, twitter, medios, coaxiales y agudos, una calidad espectacular ahora terminare con los suvwoofer... los rercomiendo

UGMB 100 CNX
UG MB 100 F
RAUL RUIZ
un pack impresionante y ademas lo he conseguido a

un pack impresionante y ademas lo he conseguido a un precio espectacular ademas el envío es muy rápido y perfectamente embalado

UG MB 100 F
Apocalypse Atom 2000.1 Pro
clem
Good amp

Compact and powerful active cooled amp there a remote knob included in the package that show the voltage and etc

Apocalypse Atom 2000.1 Pro
Z-Series Z-FDBG 2-4 EVO
clem
Love it

Love it. It show when a fuse is blown

Z-Series Z-FDBG 2-4 EVO
LAR165-2 Audi MDF 01
clem
Good fit on A4 b6

Good fit on A4 b6 2004

LAR165-2 Audi MDF 01
UG BMW 20 SUB U
Anonym
Hammer Woofer 👍 jeden Euro

Hammer Woofer 👍 jeden Euro wert

UG BMW 20 SUB U
Prima APBX 10 AS2
David Johnson
Great Product, Great Price

Great Product, Great Price

Prima APBX 10 AS2
Montagehebelset Keile 3-teilig Softversion
Anonym
Very Good

Very good experience purchasing several car audio installation products through Masori: Zeus AluButyl 140dB, the Montagehebelset Keile 3-piece soft trim removal tool set, and the 10–100 mm² M8 ring terminal set.

Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.

The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.

Montagehebelset Keile 3-teilig Softversion
Zeus AluButyl 140dB
Anonym
Very Good

Very good experience purchasing several car audio installation products through Masori: Zeus AluButyl 140dB, the Montagehebelset Keile 3-piece soft trim removal tool set, and the 10–100 mm² M8 ring terminal set.

Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.

The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.

Zeus AluButyl 140dB
10-100mm² Ring Set M8
Anonym
Very Good

Very good experience purchasing several car audio installation products through Masori: Zeus AluButyl 140dB, the Montagehebelset Keile 3-piece soft trim removal tool set, and the 10–100 mm² M8 ring terminal set.

Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.

The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.

Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.

10-100mm² Ring Set M8
Powerbox 65.4M-V7
Anonym
Very good

Very good experience purchasing the Vibe Audio POWERBOX65.4M amplifier through Masori.

Shipping was fast and the product arrived well packaged with no issues. The amplifier offers a very easy plug & play installation, making it ideal for OEM-style integrations or clean installations without complications.

Performance is stable, with good power for its size and very decent sound quality within its category. It’s a practical solution to upgrade a car audio system without complex installations or major modifications.

Overall, very satisfied with the purchase. A reliable shop and a product that delivers what it promises.

Powerbox 65.4M-V7

Recently viewed products