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Ground Zero

Iridium GZIW 165

6.5" (16.5cm) Subwoofer

1 Review

75,00€
75,00€ 75,00€
incl. VAT , possibly plus shipping

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Highlights

  • 100 watts power, 4 ohms impedance, 85.5 dB efficiency.
  • HQPP membrane, 3D structure, low-resonance steel basket.
  • Klippel-optimized, durable rubber surround, pressure contact.
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brand: Ground Zero
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS:
150
Subwoofer Type:
ferrite
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Ground Zero-Iridium GZIW 165-6.5" (16,5cm) Subwoofer-masori-kaufen
75,00€
75,00€ 75,00€

The Iridium GZIW 165 from Ground Zero elevates the sound experience to a new level. This 6.5-inch subwoofer delivers on its promises. First introduced in November 2021, it impresses with its updated model and numerous improvements. A new type of membrane structure allows for the reduction of partial vibrations. In addition, the GZIW 165 features a stable and high-quality IMPP membrane for optimal sound characteristics. This once again demonstrates that at Ground Zero, quality and performance go hand in hand.

Features
  • 6.5" (16.5cm) Subwoofer
  • High-quality 16.5 cm subwoofer
  • Klippel® optimized
  • 38 mm copper oscillating coil
  • Durable rubber nipple
  • HQPP membrane with 3D structure
  • Polycot centering
  • Resonance-dampening steel basket
  • pressure contact connection
Data
  • Vibration coil Ø 38 mm / 1.5"
  • Impedance / Wave Resistance 4 Ohm
  • Re 3.6 Ohm
  • Fs 41Hz
  • Qms 10.70
  • Qes 0.43
  • Qts 0.41
  • Vas 9.1L
  • The 1.59 mH
  • Mms 40.4g
  • BL 9.46
  • Xmax 10mm
  • Efficiency (SPL 1w/1m) 85.5 dB
  • Load capacity (RMS) 100 Watts
  • Recommended amplifier power 60 - 150 watts

Dimensions

  • Outer diameter 168mm
  • Installation diameter 147 mm
  • Installation depth 79 mm
The Iridium GZIW 165 from Ground Zero is a high-quality 16.5 cm subwoofer with an optimized 38 mm copper voice coil. The diaphragm is made of a stable IMPP structure, which ensures outstanding sound characteristics, and is equipped with a 3D structure to minimize partial vibrations. A durable rubber surround and a polycotton centering guarantee longevity and stability during operation. The resonance-optimized steel basket construction and the pressure contact connection allow for easy installation and reliable sound transmission. The subwoofer has an impedance of 4 ohms and a maximum power handling of 100 watts RMS.
The IMPP membrane of the Iridium GZIW 165 is a crucial element for sound enhancement. It is made of polypropylene, which, due to its rigid yet lightweight structure, is particularly low in resonance, resulting in minimal distortion and clear sound reproduction. Additionally, the special 3D structure of the membrane reduces partial vibrations, leading to a more balanced and precise sound. This subwoofer thus ensures excellent sound quality that reproduces the original sound without distortion. Thanks to this design, the GZIW 165 is an ideal choice for audiophiles who value pure sound.
The Thiele-Small parameters of the Ground Zero Iridium GZIW 165 are important indicators of its performance. The subwoofer has a Qms of 10.70, which represents its mechanical quality. The Qes is at 0.43, while the Qts is at 0.41, describing the overall quality of the speaker. The Vas is 9.1 liters, which is the volume needed for bass reflex tuning. Mms is at 40.4 grams and describes the moving mass of the diaphragm. The BL value of 9.46 indicates the force acting on the voice coil, which affects the efficiency of the speaker. These parameters are essential for optimal integration into the audio system.
The Iridium GZIW 165 from Ground Zero has a mounting depth of 79 mm, which is important to ensure compatibility with various vehicle models. The installation dimensions are crucial for the correct fit and mechanics within the given enclosure design. With a mounting diameter of 147 mm and an outer diameter of 168 mm, this subwoofer can be integrated into most standardized box enclosures. Ensure that there is enough space to guarantee optimal sound direction and no contact with other components of your vehicle. Also, pay attention to a solid anchoring to minimize vibrations.
The resonance-optimized steel basket of the GZIW 165 is central to its sound performance, as it provides a stable base that minimizes unwanted vibrations and thus avoids sound distortions. A resonance-optimized frame is particularly important, as it keeps the movement of the diaphragm optimally under control, thereby supporting a clean sound image. This steel basket significantly contributes to the structural integrity of the subwoofer and enables the GZIW 165 to achieve precise and focused bass reproduction, making it the ideal choice for audiophiles who appreciate high-precision performance.
For the Ground Zero Iridium GZIW 165, an amplifier power of 60 to 150 watts is recommended to optimally operate the subwoofer. This power range ensures that the subwoofer achieves its maximum sound quality without risking damage from overload. With this power, it can easily utilize the specified RMS load capacity of 100 watts. When the amplifier is operated within these power parameters, clear, distortion-free bass reproduction is guaranteed. This makes it the ideal complement in a well-coordinated sound system, where power and sound quality are of utmost importance.
The 38 mm copper voice coil of the Iridium GZIW 165 plays a crucial role in the sound reproduction of the subwoofer. Copper is known for its excellent conductivity and heat dissipation, which means it efficiently conducts energy through the voice coil while optimizing heat release. This allows the subwoofer to sound clean at high volumes without overheating. The voice coil also contributes to the stiffness and stability of the diaphragm movements, minimizing distortion and ensuring a clear, precise sound.
The Iridium GZIW 165 has special dimensions that are crucial for compatibility with many car models. With an outer diameter of 168 mm, an installation diameter of 147 mm, and an installation depth of 79 mm, the subwoofer is designed to fit into most standardized subwoofer boxes. Check the dimensions of your vehicle to ensure that the subwoofer can be installed correctly. Especially if you do not have specific car brands in your description, make sure there is enough space and a suitable enclosure structure.
The durable rubber surround of the Iridium GZIW 165 significantly contributes to the durability and stability of the subwoofer. Rubber is a material that is widely used due to its flexibility and resistance to aging and weather influences. This surround ensures a uniform return of the diaphragm to its original position, thus providing maximum stability during diaphragm movement. This reduces the risk of material fatigue and extends the lifespan of the speaker, even with intensive use. This is especially important for users who regularly prefer high volumes.
The efficiency of the Iridium GZIW 165 is 85.5 dB SPL at 1 Watt/1 meter, which is a measure of how efficiently the subwoofer converts electrical power into sound. A higher efficiency means that the speaker requires less energy to achieve a certain volume level, which is advantageous in energy-efficient systems. This efficiency allows the device to deliver clear and powerful bass even without power-intensive amplifiers. For audio enthusiasts, high efficiency is crucial for optimizing performance without additional amplifier load.

Customer Reviews

Based on 1 review
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W
Wojciech Szawara
Excelllent litte woofer

Paired with proper amp and it is really good. Strong punchy bass, excellent frequency response, especially since it is only 6.5 inch. AAA

Product Specifications

Manufacturer

Ground Zero

Product type

6.5" (16.5cm) subwoofer

Features

  • Highlights

    • 100 watts power, 4 ohms impedance, 85.5 dB efficiency.
    • HQPP membrane, 3D structure, low-resonance steel basket.
    • Klippel-optimized, durable rubber surround, pressure contact.

  • Uvp

    74

weight

1.2 kg

Technical data

Watt RMS Load Capacity

150

configurators

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Your advantages with Masori

Buy the Iridium GZIW 165 from Ground Zero online at a great price with top performance and clear sound

The Ground Zero Iridium GZIW 165 impresses with a 6.5-inch HQPP cone. Minimal distortion thanks to a rubber surround and 3D structure. The Klippel®-optimized subwoofer delivers a powerful 100 watts RMS of power, making it ideal for punchy bass. A maximum power handling of 150 watts provides enough energy for intense soundscapes. The characteristic impedance of 4 ohms is excellent for clear audio performance. Always available at Masori at the best price with our lowest price guarantee.

Optimized 6.5-inch subwoofer construction for best sound: What role does the IMPP membrane play?

The Ground Zero subwoofer is equipped with an innovative IMPP cone. The Partials 3D structure effectively reduces unwanted partial vibrations. This optimizes dispersion and results in clear, undistorted sound reproduction. Such innovative cone structures are often more expensive, but offer significant improvements in audio quality, especially at critical frequencies. At Ground Zero, sound performance is our top priority.

Performance boost with 38 mm copper voice coil: How the voice coil influences sound quality

The 38 mm copper voice coil in the Iridium GZIW 165 subwoofer dramatically improves heat dissipation. Heavy-duty coils like these offer increased power handling without distortion. The standard is often 25-30 mm, which significantly exceeds ground zero. This eliminates the need for an additional external cooling system, simplifying the overall setup and reducing costs. A definite win for sound fidelity at higher volume levels.

The properties of the effective rubber surround and their impact on sound fidelity in detail

The durable rubber surround of the Iridium GZIW-165 unit contributes significantly to distortion reduction. Its elasticity ensures more stable reproduction at high volumes. Compared to foam or paper alternatives, the rubber surround offers durable, consistent performance. It is more resistant to environmental factors, ensuring a longer service life. The potential for performance changes due to material changes should be evaluated.

Klippel® Optimization of the Ground Zero GZIW 165: Benefits for sound quality and design

Klippel® Optimization ensures precise tuning of the mechanical parameters. This optimizes the magnetic drive system and minimizes nonlinear distortion. In practice, this translates to even pure reproduction of the desired frequency range. Standard subwoofers without such technologies tend to exhibit linear distortion at the same power level. This clearly demonstrates why this Ground Zero subwoofer is the ideal choice for demanding applications.

Iridium GZIW 165 and the low IMP Re 3.6 Ohm: Efficiency and practical use

With a DC impedance of 3.6 ohms, the Ground Zero GZIW 165 is designed to drive amplifiers efficiently. This improves coupling between the amplifier and subwoofer for consistent stereophony. Industry-standard values ​​of 4 ohms demonstrate that Ground Zero offers more efficient impedance, reducing the risk of power loss and excessive heat generation in the amplifier.

9.1L VAS and the equivalent volume: How the case size affects performance

The 9.1L Vas parameters of the Ground Zero GZIW 165 indicate the ideal enclosure volume for optimal performance. A volume of 9.1 liters gives you flexibility in selecting different mounting enclosures. Smaller enclosures often result in limited bass reproduction, which is why this specification ensures an optimal signal-to-noise ratio. Consider the balance between enclosure size and ear chamber weight to perfect the soundstage.

Expert services for the Ground Zero Iridium GZIW 165: Maximum care and technical support

Take advantage of Masori's benefits, such as on-site installation in Frankfurt (Oder) . This ensures a perfect integration that's professional and efficient. Additionally, our expert support FAQ & Help ensures that you get direct answers to all your questions about the use and optimal settings of the Iridium GZIW 165. You can find more tips on getting the most out of your subwoofer in the Masori audio blog .

Resonance frequency Fs of 41Hz and its influence on bass reproduction in the sound system

A resonant frequency of 41 Hz ensures that the Ground Zero GZIW 165 reproduces the deepest bass notes clearly and without distortion. Such a low frequency value is crucial for urban or electronic music, where low frequencies dominate. While subwoofers with a higher low frequency are more commonly used for midrange-dominated genres, the Ground Zero GZIW 165 offers excellent low-end sensitivity, ideal for voluminous basslines.

Qms of 10.70 and overall quality Qts of 0.41: Fine-tuning process analyzed

The mechanical quality factor (Qms) of 10.70 reflects the mechanical losses during the diaphragm's vibration. A high Qms value gives the Ground Zero subwoofer greater dynamic range in quiet passages, but reduces the stiffness of the suspension. The Qts of 0.41 indicates that the subwoofer is ideally suited for a variety of installations. This balance between electrical and mechanical properties makes it versatile and allows for both sealed and bass-reflex enclosures.

Advantages of 85.5 dB efficiency: What you need to know about efficiency

An efficiency of 85.5 dB is typical for high-performance subwoofers and indicates that the Ground Zero GZIW 165 produces a high level of sound even at low input power. Efficiency plays a crucial role when looking for a subwoofer that requires little amplifier power while delivering powerful bass output. Higher efficiency ratings are often found in professional studio speakers where distortion must be minimized.

Pressure contact connection for easy access: Performance aspects explained

The Ground Zero GZIW 165 utilizes pressure-contact connectors, providing a simple and secure connection to your existing audio equipment. This connection method minimizes signal loss during operation. Compared to solder connections, this reduces installation time and difficulty. Quick access to cabling is advantageous in dynamic installations and minimizes installation costs, especially with frequent system changes.

Installation options: Outer diameter of 168 mm and installation depth of 79 mm for flexible integration

Thanks to the subwoofer's compact dimensions, an outer diameter of 168 mm and a mounting depth of 79 mm, the Ground Zero GZIW 165 is designed for easy integration into most vehicle models. The mounting dimensions allow for placement in locations with limited installation space, such as vehicle doors or rear decks. Optimized mounting positions can have a significant impact on the sound and bass reproduction and influence the choice of enclosure type.