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Ground Zero GZW 12-30A 12" (30cm) Subwoofer
SKU:  GZW-12-30A
EAN:  4037072026528
1500 Watt

GZW 12-30A

SKU:  GZW-12-30A
EAN:  4037072026528

Technical Highlights

  • Power of 3500 watts, impedance 2x 2 ohm, sensitivity 85 dB.
  • Klippel® optimized, 75 mm copper voice coil, max. excursion 45 mm.
  • Reinforced paper cone, aluminum cast basket, resonant frequency 26.5 Hz.
  • More technical details
00 d
00 h
00 m
00 s
€326,05
-24% €429,00 €326,05
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
Jun 5, - Jun 8,
x piece
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GZW 12-30A by Ground Zero

The GZW 12-30A from Ground Zero is a 12-inch Subwoofer with a power handling of 1500 Watts RMS and up to 3500 Watts SPL. The model features an impedance of 2x 2 Ohms and an efficiency of 85 dB. Technical components include a massive aluminum die-cast basket, a reinforced paper cone, and a 75 mm copper voice coil. The Subwoofer is Klippel optimized and equipped with a long-stroke U-shaped surround and a carbon dustcap. A 2-layer polycot centering stabilizes the construction for SPL applications.

Features
  • 12-inch (30 cm) Subwoofer
  • Power handling: 1500 Watts RMS
  • Power handling: 3500 Watts SPL
  • Power recommendation: 1000 – 3500 Watts
  • Massive aluminum die-cast basket
  • Reinforced paper cone
  • 75 mm copper voice coil
  • Carbon dustcap
  • Long-stroke U-shaped surround
  • 2-layer polycot centering
  • Klippel optimized
Technical Specifications
  • Impedance: 2x 2 Ohms
  • Efficiency: 85 dB
  • Max. excursion (Xmax): 45 mm
  • Installation diameter: 284 mm
  • Installation depth: 198 mm
  • Resonance frequency (Fs): 26.5 Hz
  • Total quality factor (Qts): 0.52
  • Equivalent air volume (Vas): 30.6 l

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Frequently Asked Questions about GZW 12-30A

What power does the GZW 12-30A Subwoofer offer?

The GZW 12-30A Subwoofer from Ground Zero impresses with an enormous power handling of up to 3500 watts. Study the design closely, as it is optimized for SPL applications. The nominal power handling is 1500 watts RMS, meaning it can continuously withstand high volumes. Its power recommendation ranges from 1000 to 3500 watts, allowing for flexible use depending on the required sound pressure. At this power level, you benefit from the use of a 75 mm copper voice coil, which efficiently dissipates heat and minimizes distortion. Understanding these technical specifications is crucial for optimizing your sound experience.

How does the Klippel® optimization affect the performance of the GZW 12-30A?

The Klippel® optimization of the GZW 12-30A Subwoofer ensures outstanding performance through the precise fine-tuning of linearized parameters. This affects both the efficiency of the voice coil and the symmetry of the movements. This is particularly noticeable at the lowest frequencies, as the resonance frequency is at 26.5 Hz. This optimization allows you to enjoy clean sound reproduction without losses at high power levels. Combined with a total quality (Qts) of 0.52 and a diaphragm made of reinforced paper, a balanced and powerful sound field is created.

What materials are used in the construction of the GZW 12-30A?

The GZW 12-30A uses high-quality materials to maximize stability and sound precision. The massive aluminum die-cast basket provides stability and prevents unwanted vibrations. The diaphragm is made of reinforced paper, which offers the necessary stiffness for precise sound waves while demonstrating excellent resonance. The carbon dust cap contributes to robustness, protects the cone from damage, and also enhances sound clarity. The long-stroke U-suspension allows for impressive Xmax movements of up to 45 mm. This combination enables you to enjoy music or movie sound without distortion at high power.

How do I install the GZW 12-30A Subwoofer in the car?

For the installation of the GZW 12-30A, you must consider the installation dimensions of 284 mm diameter and 198 mm depth. This ensures that it fits perfectly into prepared cutouts. Start with planning the mounting; the massive cast basket ensures a secure placement. Make sure that the wiring is compatible with the impedance of 2x 2 Ohm to optimally guarantee power delivery. Keep in mind that the environment in the vehicle should be acoustically optimized. In addition to physical mounting, correct arrangement is crucial to maximize the SPL advantage.

What technical parameters support the high performance of the Subwoofer?

The high performance of the GZW 12-30A depends on several key parameters. The 75 mm copper voice coil is excellent at conducting high currents, which is essential for SPL applications. The high power handling of up to 3500 watts at an efficiency of 85 dB makes it extremely efficient. The resonance-optimized paper diaphragm takes care of precise sound distribution, optimal for the lowest frequencies at a resonance frequency of 26.5 Hz. Its total quality factor (Qts) of 0.52 supports control over wide frequency ranges, while the massive aluminum basket effectively minimizes unwanted resonances.

What does the impedance of 2x 2 Ohm mean for the application?

The impedance of 2x 2 Ohm in this Subwoofer significantly influences the power supply and choice of amplifier. This impedance allows for parallel or series connection, enabling flexible adaptation to various amplifier configurations. If you are after maximum power, a parallel connection of the two 2-ohm coils opens up the possibility of drawing greater amplifier power from fewer amplifier outputs. This means it is ideal for complex SPL setups that require gradual adjustments and well-tuned wiring to fully realize the exceptional SPL potential.

How does the design affect the sound quality of the GZW 12-30A?

The design of the GZW 12-30A is crucial for its outstanding sound quality. The massive aluminum cast basket minimizes resonances that could muddy the sound. The reinforced paper diaphragm combined with the long-stroke U-suspension allows for precise reproduction even at extreme volumes. The 75 mm copper voice coil leads to stable sound reproduction under high load. Together, the materials and tuning specified by Klippel®, tuned to a total quality factor (Qts) of 0.52, ensure a dynamic and clear sound that superbly expresses both depth and nuances in audio playback.

What enclosure size is recommended for the GZW 12-30A?

For the Ground Zero GZW 12-30A Subwoofer, an enclosure volume ideally tuned to an effective implementation of the equivalent air volume (Vas) of 30.6 liters is recommended. This maximizes resonance control in the sound range around its operating peak frequency of 26.5 Hz. A precisely calculated enclosure optimizes bass extension and ensures that the long-stroke U-suspension can achieve its maximum displacement (Xmax) of 45 mm. Considering the enclosure size is crucial to guarantee the clear and powerful bass for which this specific SPL design was created.

What specific features make the GZW 12-30A unique?

The unique feature of the GZW 12-30A Subwoofer is a combination of several technologically advanced components. On one hand, it has a 75 mm copper voice coil designed to handle high power loads effortlessly. The massive aluminum die-cast basket provides outstanding structural support, while the carbon dust cap protects the sound from contamination. Special attention is given to the reinforced paper cone, complemented by a long-stroke U-suspension, which allows for precise control and high Xmax movement. The meticulous design rounded off by Klippel® optimization makes it excellent for SPL applications.

What is the efficiency of the GZW 12-30A in the extreme SPL range?

With an efficiency of 85 dB, the Ground Zero GZW 12-30A Subwoofer shows excellent efficiency, especially in the SPL range. This ensures that the subwoofer can produce the maximum possible sound pressure even at extreme volumes without loss of power. You will feel the difference especially at live events or large installations, where precise sound field management is required. The efficiency allows for maintaining the ever-critical balance between electrical power and acoustic output, which can be crucial for SPL fans to fully utilize the subwoofer corridor.

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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