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  5. Sigma SSW12

Sigma SSW12

500 Watt

Sigma SSW12

Technical Highlights

  • High performance, 89.8 dB SPL, dual 2x2 Ω impedance, 330 mm diameter.
  • 36 Hz resonant frequency, 16.7 Tm force factor, 495 cm² cone area.
  • 0.54 total Q factor, 2" voice coil, perfect for bass reflex enclosures.
  • More technical details
€199.00
€199.00 €199.00
2% discount with credit card

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ProductSigma SSW12

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datasheet
Two Gladen Sigma SSW12 subwoofers—front and rear views—showcasing metallic accents and branding, ideal for deep car audio bass.
€199.00
€199.00 €199.00

The Sigma SSW12 from Gladen is a 12" (30cm) Subwoofer that provides powerful deep bass in your vehicle. With its large diaphragm area and long-stroke 2" Dual-2-Ohm voice coil, it enables impressive sound pressure and flexibility in system design. The stable paper diaphragm and optimized suspension ensure efficient air movement, ideal for a punchy and precise low-frequency experience, even at high levels. The Subwoofer is suitable for both sealed and bass reflex enclosures, making it an excellent fit for performance-oriented car audio systems. Additional features include aluminum voice coil holders and a steel basket, contributing to the robustness of the device.

The GLADEN SIGMA SSW12 stands for uncompromising deep bass and authoritative sound pressure in the vehicle. Thanks to its large diaphragm area and powerful drive, it is the right choice for users who want to not only hear bass but also feel it, without sacrificing control and precision.

The stable paper diaphragm combined with the long-stroke suspension allows for efficient air movement and ensures a punchy and clean low frequency, even at high levels. The Dual-2-Ohm voice coil offers maximum flexibility in system design and allows operation with powerful mono and multi-channel amplifiers.

Thanks to its balanced parameters, the SIGMA SSW12 is suitable for both sealed and bass reflex enclosures and is ideal for performance-oriented car audio systems that demand high levels of depth and load capacity.

  • 12" Subwoofer for maximum deep bass
  • Long-stroke 2" voice coil (Dual 2 Ohm)
  • Stable paper diaphragm for high sound pressure
  • Optimized for sealed & bass reflex enclosures

Technical Data

Material

  • Dust cap: PP
  • Voice coil holder: Aluminum
  • Spider: 7.5" PC Mix (Poly-Cotton blend)
  • Diaphragm: Paper
  • Surround: Foam
  • Basket: Steel

Data

  • Recommended enclosure volume: 38-48 liters
  • X-Max linear (+/-): 11.5 mm
  • DC resistance (Rdc): 1.85 Ω (dual)
  • Nominal impedance (Z): 2x2 Ω
  • Resonance frequency (Fs): 36 Hz
  • Voice coil diameter: 50 mm
  • Voice coil height: 30 mm
  • Mechanical quality (Qms): 6.89
  • Electrical quality (Qes): 0.58
  • Total quality (Qts): 0.54
  • Moving mass (Mms): 181.6 g
  • Diaphragm area (sd): 495 cm2
  • Compliance of the suspension (Cms): 0.1mm/N
  • Force factor (BL): 16.7 Tm
  • Equivalent air volume (Vas): 36 liters
  • Efficiency (η): 0.28 %
  • SPL 2.83V/1m: 89.8 dB
  • Outer diameter: 330 mm
  • Mounting diameter: 284 mm
  • Mounting depth: 154 mm

Frequently Asked Questions about Sigma SSW12

What are the Thiele-Small parameters of the Sigma SSW12 Subwoofer?

The Sigma SSW12 from Gladen features specific Thiele-Small parameters that allow for precise design in various enclosures. The resonance frequency (Fs) is 36 Hz, indicating deep and powerful bass. The mechanical quality factor (Qms) is 6.89, while the electrical quality factor (Qes) is 0.58. This results in a total quality factor (Qts) of 0.54, optimizing the subwoofer for both sealed and bass reflex enclosures. With a moving mass (Mms) of 181.6 g and a force factor (BL) of 16.7 Tm, the Sigma SSW12 represents a balanced mix of precision and performance.

How flexible is the dual 2-ohm voice coil in the Sigma SSW12?

The dual 2-ohm voice coil of the Sigma SSW12 allows for high flexibility when connecting to amplifier systems. It has a direct current resistance (Rdc) of 1.85 Ω (dual) and a nominal impedance (Z) of 2x2 Ω, creating various wiring options for mono or multi-channel amplifiers. With a voice coil diameter of 50 mm and a height of 30 mm, it also offers impressive control and load capacity for powerful car audio systems. These features make it easy to integrate the subwoofer into custom car audio setups that maximize both performance and sound quality.

In which types of enclosures can the Gladen Sigma SSW12 be optimally operated?

The Gladen Sigma SSW12 is versatile when it comes to enclosure design. Thanks to its balanced parameters, it is optimized for use in sealed and bass reflex enclosures. The recommended enclosure volume for optimal performance is between 38 and 48 liters. This supports the subwoofer in producing clear and powerful bass at both low and high levels. The combination of a resonance frequency (Fs) of 36 Hz and a total quality factor (Qts) of 0.54 ensures that the subwoofer delivers both airy and precise bass, regardless of the type of enclosure.

What materials are used in the Sigma SSW12 and why?

The Sigma SSW12 from Gladen uses specific materials to ensure both high performance and durability. The diaphragm is made of sturdy paper, known for its ability to deliver powerful bass tones. The PP dust cap protects the unit from foreign objects. The aluminum voice coil holder and a dual 2-ohm voice coil ensure efficient heat dissipation and contribute to overall stability. The 7.5-inch spider made of a poly-cotton blend increases mechanical strength, while the foam surround allows for optimal excursion. The steel basket provides a stable overall construction of the Subwoofer.

Can the Sigma SSW12 be integrated into my existing car audio system?

The integration of the Gladen Subwoofer Sigma SSW12 into an existing car audio system depends on various parameters. The outer diameter is 330 mm, while the cutout diameter is 284 mm. With a mounting depth of 154 mm, the Subwoofer fits into many common enclosure solutions, as long as the recommended enclosure volume is between 38 and 48 liters. The dual 2-ohm voice coil offers flexibility when combining with different amplifiers. Make sure that your current equipment provides the necessary amplifier power and correct wiring to fully utilize the potential of the SSW12.

How does the diaphragm area affect the bass performance of the Sigma SSW12?

The diaphragm area of the Sigma SSW12 has a direct impact on bass performance. With an area of 495 cm², the diaphragm can move significant amounts of air, resulting in powerful and deep bass, especially at higher sound levels. The combination of this large area with the sturdy paper diaphragm allows the Subwoofer to reproduce tones with high precision and minimal distortion. Furthermore, the Thiele-Small parameters, such as the resonance frequency of 36 Hz and the total Q factor of 0.54, support the SSW12 in effectively amplifying low-frequency sounds, thus enhancing overall performance.

What role does the force factor play in the Sigma SSW12 Subwoofer?

In the Sigma SSW12 Subwoofer, the force factor (BL) plays a significant role. With a value of 16.7 Tm, this parameter indicates how strongly the magnetic field sets the voice coil in motion. A high BL value suggests high efficiency and precise control, especially at high volumes. It improves the conversion of electrical to acoustic energy, which in turn optimizes bass quality and sound pressure. This specific force factor results in precise reproduction of complex basses that are both powerful and clear, significantly contributing to the overall sound quality of the Subwoofer.

How does the efficiency of the Gladen Sigma SSW12 perform in operation?

The Sigma SSW12 Subwoofer from Gladen has an efficiency of 0.28%, indicating excellent energy transfer. The SPL value (Sound Pressure Level) of 89.8 dB at 2.83V/1m shows that this Subwoofer achieves a high volume even with low power inputs. This efficient performance is the result of precisely tuned parameters, such as the electrical quality (Qes) of 0.58 and the nominal impedance of 2x2 Ohm, making it ideal for performance-oriented systems. Despite its powerful output, the SSW12 retains the ability to adapt to various amplifier types without compromising sound fidelity.

What installation dimensions should be considered for the Sigma SSW12 Subwoofer?

When installing the Sigma SSW12 from Gladen, you should consider the specific dimensions to ensure seamless integration. The outer diameter is 330 mm and the cutout diameter is 284 mm, allowing for both pre-fabricated and custom enclosure solutions. The installation depth of 154 mm must also be taken into account, especially when space is limited. To unleash its full potential, the enclosure volume should be between 38 and 48 liters. These installation requirements are important to achieve optimal performance and the best possible bass in your car audio system.

How does the Sigma SSW12 handle high levels and deep bass?

The Sigma SSW12 Subwoofer from Gladen impresses with its ability to handle both high levels and deep bass with remarkable control. The long-stroke 2-inch voice coil, combined with the stable paper cone and foam surround, allows for significant cone excursions, resulting in powerful and clean low frequencies. The X-max linear of ±11.5 mm ensures that there is no clipping or distortion even at high volumes. This design, along with a resonance frequency of 36 Hz, ensures that the Subwoofer delivers clean and detailed sounds at both low and high frequencies.

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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