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Ground Zero Hydrogen GZHW 25 10" (25cm) Subwoofer
SKU:  GZHW-25-D1
1200 Watt

Hydrogen GZHW 25

SKU:  GZHW-25-D1

Technical Highlights

  • Power up to 2500 watts SPL, 63 mm copper voice coil.
  • Impedance 2x1 or 2x2 ohms, aluminum die-cast basket, 83 dB efficiency.
  • Resonant frequency 41.8 Hz, max excursion 45 mm, 25 cm size.
  • More technical details
00 d
00 h
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€299,00
-14% €349,00 €299,00
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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€349,00 €299,00

Hydrogen GZHW 25 by Ground Zero

The Hydrogen GZHW 25 from Ground Zero is a 10-inch Subwoofer designed as a high-performance model. It features a reinforced paper cone and a 63 mm copper voice coil. The chassis is based on a solid aluminum die-cast basket. The technical specifications include a long-stroke sandwich surround, a carbon dust cap, and a 2-layer polycot centering. The system is Klippel-optimized and rated for a power handling of 1200 watts RMS. The maximum SPL output is specified at 2500 watts. The Subwoofer is available in versions with an impedance of 2x1 ohm or 2x2 ohm.

Features
  • 10-inch (25 cm) Subwoofer
  • Power handling: 1200 watts RMS
  • Power handling: 2500 watts SPL
  • Power recommendation: 800 – 2500 watts
  • Impedance: 2x1 ohm or 2x2 ohm
  • Reinforced paper cone
  • Solid aluminum die-cast basket
  • 63 mm copper voice coil
  • Long-stroke sandwich surround
  • Carbon dust cap
  • 2-layer polycot centering
  • Klippel-optimized
Technical Specifications
  • Efficiency: 83 dB
  • Max. excursion (Xmax): 45 mm
  • Installation diameter: 238 mm
  • Installation depth: 178 mm
  • Resonance frequency (Fs): 41.8 Hz
  • Total Q factor (Qts): 0.487
  • Equivalent air volume (Vas): 8.53 liters

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Ground Zero Hydrogen GZHW 25 Datasheet

Open datasheet

Frequently Asked Questions about Hydrogen GZHW 25

What power does the GZHW 25 Subwoofer from Ground Zero offer?

The GZHW 25 from Ground Zero offers a maximum power of up to 2500 Watts SPL, making it an excellent choice for bass enthusiasts looking for overwhelming performance. With an RMS value of 1200 Watts, you can be sure it delivers intense bass and deep sound for your audio setup without any issues. Additionally, the subwoofer supports a power recommendation between 800 and 2500 Watts, giving you flexibility in choosing your amplifier to fully exploit the subwoofer's potential.

How is the impedance of the GZHW 25 configured?

The GZHW 25 Subwoofer from Ground Zero features a variable impedance configuration. It is available in 2x1 Ohm or 2x2 Ohm variants, allowing you to optimally adapt it to your existing audio system. This variability in impedance selection enables integration into various audio setups, which is particularly important for achieving the best possible sound quality while ensuring compatibility with different amplifiers. Therefore, it is crucial to choose the appropriate impedance according to your specific audio configuration.

What is the diameter of the GZHW 25 Subwoofer?

The Ground Zero GZHW 25 Subwoofer has a diameter of 25 cm (10 inches). This diameter is ideal for powerful bass reproduction and allows integration into a variety of speaker boxes and audio setups. Although it appears compact, this subwoofer offers impressive sound depth, complemented by its other technical features such as the reinforced paper cone and the 63 mm copper voice coil to ensure distortion-free bass production.

What are the installation type and dimensions of the GZHW 25?

The GZHW 25 from Ground Zero has a cutout diameter of 238 mm and a mounting depth of 178 mm, making it a versatile choice for various enclosure designs. These dimensions are crucial to ensure that the Subwoofer fits optimally into existing spaces or speaker cabinets. Additionally, the massive aluminum die-cast basket is designed to provide a stable and resonance-free foundation, which is particularly important for powerful and precise bass reproduction.

How does the resonance frequency of the GZHW 25 affect the sound?

The resonance frequency of the GZHW 25 from Ground Zero is 41.8 Hz, allowing for deep and rich bass that stands out particularly in genres like hip-hop and electronic music. Such a resonance frequency ensures that the Subwoofer reproduces particularly low tones cleanly without losing sound quality. Combined with an efficiency of 83 dB, the GZHW 25 is optimized to deliver consistent and clear sound results even at higher volumes, making it ideal for listeners who value excellent sound.

What type of voice coil is used in the GZHW 25?

The GZHW 25 Subwoofer from Ground Zero is equipped with a robust 63 mm copper voice coil. This voice coil is crucial for handling the enormous power capabilities of the Subwoofer and significantly contributes to its durability and performance efficiency. The choice of copper as a material ensures that electrical resistance remains minimal, reducing heat generation and guaranteeing consistent performance even under intense use, which is essential for loud music enthusiasts.

What is special about the diaphragm of the GZHW 25?

The diaphragm of the Ground Zero GZHW 25 is made of reinforced paper, providing excellent sound quality. This diaphragm is not only particularly lightweight, allowing for quick response times, but also reinforced to withstand the high stresses that occur during the reproduction of low frequencies. This structure results in less distortion at high volumes and ensures that the sound retains its natural purity. The combination of these features makes the Subwoofer ideal for demanding audio applications.

What role does the long-stroke sandwich surround play in the GZHW 25?

The long-stroke sandwich surround of the GZHW 25 from Ground Zero is an essential component for enhancing the excursion capability of the Subwoofer. It allows for a maximum excursion of up to 45 mm, which provides impressive bass strength without losing precision. This special surround technology ensures smooth movement of the diaphragm, which contributes to optimal sound quality, especially at high volumes, where conventional designs often reach their limits. Especially if you prefer music with deep and powerful bass, this surround is indispensable.

What are the advantages of the carbon dust cap in the GZHW 25?

The carbon dust cap of the GZHW 25 from Ground Zero offers several key advantages for sound reproduction. In addition to its lightweight structure, which allows for high sensitivity and quick movements of the diaphragm, it effectively protects the internal parts of the Subwoofer from damage caused by dust and dirt. This feature contributes to the overall longevity of the speaker and ensures that there are no performance losses during continuous use. Its robustness and low weight further support the performance of the Subwoofer.

How do the Thiele-Small parameters affect the performance of the GZHW 25?

The Thiele-Small parameters of the GZHW 25 Subwoofer from Ground Zero, particularly the total quality factor Qts of 0.487 and the equivalent air volume Vas of 8.53 L, are crucial for fine-tuning the acoustic behavior and integration into various enclosure designs. A lower Qts value indicates a bass reflex enclosure, which provides more precise reproduction of low frequencies. The Vas volume indicates how much air displacement is necessary to produce loud and clear bass, which should be considered in box design.

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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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.

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