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  5. Zeta 08

Zeta 08

200 Watt

Zeta 08

Technical Highlights

  • Performance: High power handling, 2x2 Ohm impedance, diaphragm technology.
  • Precision: 2-inch voice coil, low mechanical resistance.
  • Reliability: Stable drive system, integrated field stabilization.
  • More technical details
€649.00
€649.00 €649.00
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ProductZeta 08

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datasheet
Zwei Gladen Zeta 08 Subwoofer zeigen sichtbare Konen und robusten Rahmen, liefern kraftvolle Bässe; einer frontal, der andere von Rück- und Seite auf weißem Hintergrund.
€649.00
€649.00 €649.00

Discover the Zeta 08 from Gladen, an 8-inch (20 cm) Subwoofer that stands out for its powerful bass and precise sound depth. With its robust aluminum diaphragm and 2x2 Ohm voice coil, the Subwoofer ensures clean bass reproduction and is particularly effective in compact, sealed enclosures with a recommended volume starting from 12 liters. Its construction allows for controlled reproduction of low-frequency sounds, while the stiff aluminum diaphragm combined with the long-stroke voice coil provides a linear and precise movement. The Zeta 08 is the perfect choice for those who value high performance and excellent sound quality.

The Zeta 08 is a 22 cm Subwoofer chassis designed for controlled and distortion-free reproduction of low-frequency sounds. Due to its design, which focuses on linear diaphragm movement and stable drive characteristics, it is particularly suitable for compact Subwoofer applications.

The stiff aluminum diaphragm ensures clean piston movement across the entire working range, allowing for precise bass reproduction even at higher levels. The stable aluminum die-cast basket is generously ventilated to reduce air compression during operation and offers high mechanical strength.

The magnet and drive system features integrated field stabilization, which keeps the magnetic flux constant at increasing levels. This reduces nonlinear distortions, especially at larger diaphragm excursions.

The powerful motor is equipped with a 2-inch voice coil and ensures controlled power transfer in the low-frequency range. The voice coil is built on a robust fiberglass carrier, which reduces mechanical losses and supports precise control of the diaphragm.

Thanks to its large linear excursion, the Zeta 08 delivers clean and controlled bass reproduction even at higher levels. This makes the chassis particularly suitable for applications where precision, control, and reliability are important.

  • Music-oriented design: controlled, precise bass
  • Long-stroke voice coil for linear movement
  • Robust diaphragm structure
  • 2x2 Ohm voice coils
  • Conex Spider
  • Designed for compact, sealed enclosures
  • Enclosure recommendation: from 12 liters (sealed)

Technical Data

Material

  • Dust cap: Aluminum
  • Voice coil carrier: CFRP
  • Spider: Conex
  • Diaphragm: Aluminum
  • Surround: NBR
  • Basket: Aluminum

Data

Measurements obtained with an attached voice coil.

  • Recommended enclosure volume (sealed): 12 liters Sealed / 30 liters Ventilated
  • X-Max linear (+/-): 11 mm
  • DC resistance (Rdc): 1.85 Ω (dual)
  • Nominal impedance (Z): 2x2 Ω
  • Resonance frequency (Fs): 21 Hz
  • Voice coil diameter: 50 mm
  • Voice coil height: 30 mm
  • Mechanical quality (Qms): 9
  • Electrical quality (Qes): 0.61
  • Total quality (Qts): 0.57
  • Moving mass (Mms): 116 g
  • Diaphragm area (Sd): 206 cm2
  • Mechanical resistance (Rms): 1.7 kg/s
  • Suspension compliance (Cms): 0.49 mm/N
  • Force factor (BL): 6.8 Tm
  • Equivalent air volume (Vas): 29.7 liters
  • SPL 2.83V/1m: 89.06 dB
  • Outer diameter: 224 mm
  • Mounting diameter: 189 mm
  • Mounting depth: 118 mm

Frequently Asked Questions about Zeta 08

What technical features does the Gladen Zeta 08 have?

The Gladen Zeta 08 is a 22 cm Subwoofer chassis designed specifically for precise bass reproduction. The aluminum diaphragm ensures clean piston movement due to its stiffness. The subwoofer features a 2-inch voice coil on a fiberglass former, which minimizes mechanical losses. To maintain consistent sound quality even at high levels, the motor incorporates field stabilization, reducing nonlinear distortions. The ventilated aluminum die-cast basket minimizes air compression, while the 2x2 Ohm voice coils support flexible control. The Conex spider and NBR surround contribute to the lasting stability and performance of the Zeta 08.

What size should the enclosure for the Zeta 08 be?

The Zeta 08 was designed for use in compact, sealed enclosures. A recommended enclosure volume of 12 liters in a sealed design is specified. Alternatively, the subwoofer can also be integrated into a vented enclosure with a volume of 30 liters. The right enclosure choice is crucial to ensure optimal bass reproduction. When installed in a sealed enclosure, particularly controlled bass reproduction is achieved, which is especially suitable for applications where precision and control are paramount. During the planning phase, attention should be paid to the exact dimensions and the installation depth of 118 mm.

What is the maximum linear excursion of the Zeta 08?

The Gladen Zeta 08 offers a maximum linear excursion of (+/-) 11 mm. The long-stroke voice coil allows for this excursion and ensures that even at higher levels, the bass reproduction remains precise and controlled. This feature is essential for reproducing low frequencies without distortion. The linear excursion is supported by the combination of a stiff aluminum diaphragm and a robust aluminum die-cast basket, which helps minimize nonlinear distortions and ensures consistent bass reproduction. This excursion is ideal for applications where precision in the low-frequency range is critical.

What frequency characteristics does the Zeta 08 Subwoofer have?

The Gladen Zeta 08 Subwoofer is designed for a resonant frequency (Fs) of 21 Hz, making the chassis particularly suitable for reproducing ultra-low bass. With a total quality factor (Qts) of 0.57 and a mechanical quality factor (Qms) of 9, an efficient reproduction characteristic is achieved, ensuring both precision and depth of reproduction. The subwoofer has an electrical quality factor (Qes) of 0.61, which, combined with the force factor (BL) of 6.8 Tm, significantly influences control and sound quality. The diaphragm area (Sd) is 206 cm², highlighting the ability to generate a powerful bass wave.

What materials are used in the Gladen Zeta 08?

The Gladen Zeta 08 Subwoofer uses high-quality materials to ensure excellent sound quality and durability. The aluminum diaphragm provides a clean piston movement, while the dust cap is also made of aluminum, contributing to a uniform vibration behavior. The voice coil former is made of CFRP, which increases mechanical stability. The spider material is made of Conex, designed for high loads. The basket of the subwoofer is made of robust aluminum, supporting the entire construction and minimizing resonances. The NBR surround provides additional flexibility in diaphragm movement.

Which vehicle types is the Zeta 08 compatible with?

The Gladen Zeta 08 can be installed in various vehicle types, provided the available space matches the dimensions of the subwoofer. The outer diameter is 224 mm, while the cutout diameter measures 189 mm. The installation depth is specified as 118 mm. These dimensions make the Zeta 08 universally applicable, as long as there is enough space. The subwoofer can be integrated into both sedans and compact cars to provide a high-quality listening experience. For a smooth installation, the recommended enclosure volume should be considered. It is advised to check beforehand whether the installation space can accommodate the specified dimensions.

What are the Thiele Small parameters of the Gladen Zeta 08?

The Thiele Small parameters of the Gladen Zeta 08 provide accurate specifications for its behavior in sealed and vented enclosures. The DC resistance (Rdc) is 1.85 Ω dual, and the nominal impedance (Z) is 2x2 Ω. The mechanical resistance (Rms) is specified as 1.7 kg/s, while the compliance of the suspension (Cms) is at 0.49 mm/N. The equivalent air volume (Vas) measures 29.7 liters, indicating the required enclosure volume. Finally, the Zeta 08 has an electrical quality factor (Qes) of 0.61 and a mechanical (Qms) of 9, which together yield a total quality factor (Qts) of 0.57.

How is the Gladen Zeta 08 installed in the car?

The Gladen Zeta 08 requires precise installation in the vehicle to provide optimal performance. First, the correct enclosure volume of at least 12 liters in a closed design must be provided. Installation is done through the mounting diameter of 189 mm, while the mounting depth of 118 mm must be considered to ensure the full movement of the Subwoofer. It is important that the Subwoofer is securely mounted to minimize vibrations and not impair acoustic performance. The robust aluminum die-cast basket allows for stable mounting. Suitable screws and fasteners are essential to support the construction.

How does the diaphragm structure affect the sound quality of the Zeta 08?

The diaphragm structure of the Gladen Zeta 08 is crucial for its excellent sound quality. The diaphragm made of aluminum is particularly stiff, allowing for clean piston movement and efficiently minimizing distortion. This leads to precise bass reproduction, even at higher volumes. The robust diaphragm structure works harmoniously with the stable NBR surround to maintain sound fidelity even with larger diaphragm excursions. These features significantly reduce nonlinear distortions, which is especially beneficial at high levels. Thanks to the high-quality materials, the diaphragm of the Zeta 08 offers remarkable reliability and durability.

Why is field stabilization important in the Zeta 08?

Field stabilization in the Gladen Zeta 08 plays a critical role in ensuring consistent sound quality even at increased levels. This technology ensures that the magnetic flux remains unchanged, even with large diaphragm excursions. Nonlinear distortions that typically occur at high volumes are minimized by the integrated field stabilization. This means that sound fidelity and detail accuracy are maintained, regardless of the level at which it is played. The constant magnetic field control allows for uniform power transfer within the low-frequency range, thus supporting the precise bass reproduction that characterizes the Zeta 08, especially in music-intensive applications.

Manufacturer information/responsible person

Gladen Europe GmbH
Alexandra Gladen

Postal address:
Bertha-Benz-Str. 97
2141 Walddorfhäslach
Germany

Contact: info@gladen.com

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