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SUB19 SN 8 MkII 8" (20cm) Subwoofer
500 Watt
SUB19

SN 8 MkII

8" (20cm) Subwoofer

Technical Highlights

  • Power of 2x2 Ohm: 79.97 dB, Resonance frequency: 38.5 Hz.
  • Impedance at Fs 2x2: 43.68 Ω, Coil diameter 2.5 inches.
  • Dual copper voice coil, mechanical quality factor Qms: 4.869.
  • More technical details
€229,00
€229,00 €229,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
Impedance: D2 (2x2 Ohm)
Farbe: Orange
Delivery
Apr 15, - Apr 20,
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SUB19-SN 8 MkII-8" (20cm) Subwoofer-masori-kaufen
€229,00
€229,00 €229,00

SN 8 MkII by SUB19

The SN 8 MkII from SUB19 is a compact 8-inch Subwoofer. The construction features an optimized basket design made of aluminum die-casting and a 2.5-inch dual voice coil made of pure copper. The robust drive consists of two ferrite magnets that ensure a consistent magnetic field density. The Thiele-Small parameters are available for the versions 2x2 Ohm and 2x1 Ohm. For bass reflex operation, cabinet volumes of 17 liters, 20 liters, or 26 liters are recommended. Closed cabinet constructions are not recommended for this model.

Features
  • 8-inch (20 cm) Subwoofer
  • Optimized basket design made of aluminum die-casting
  • 2.5-inch dual voice coil made of pure copper
  • Drive made of two ferrite magnets
  • Bass reflex compact: 17 liters net volume, 80 cm² port area, 55 cm port length
  • Bass reflex all-round: 20 liters net volume, 90 cm² port area, 57 cm port length
  • Bass reflex deep bass: 26 liters net volume, 100 cm² port area, 62 cm port length
Technical Specifications
  • DC resistance Re: 3.86 / 1.94 Ω
  • Impedance at Fs: 43.68 / 25.99 Ω
  • Self-resonance frequency Fs: 38.5 / 36.7 s^-1
  • Mechanical quality factor Qms: 4.869 / 5.506
  • Electrical quality factor Qes: 0.472 / 0.444
  • Total quality factor Qts: 0.430 / 0.411
  • Moving mass mms: 156.5 / 180.3 g
  • Rms: 7.774 / 7.553 kg/s
  • Force factor Bl: 17.59 / 13.48 Tm
  • Spring stiffness Cms: 0.1092 / 0.1043 mm/N
  • Effective diaphragm area Sd: 186.3 cm²
  • Equivalent volume Vas: 5.38 / 5.14 l
  • Inductance Le: 4.262 / 2.535 mH
  • dB SPL @ 1 W 1 m: 79.97 / 79.41

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Frequently Asked Questions about SN 8 MkII

What improvements does the SN 8 MkII offer compared to its predecessor?

The SN 8 MkII from SUB19 surpasses its predecessor with an optimized basket design made of die-cast aluminum, which increases mechanical stability. The enlarged 2.5" coil diameter allows for higher electrical load capacity. The dual centering made of polyphenylene isophthalamide ensures precise guidance of the coil in the air gap, while vulcanized rubber provides elasticity and strength in critical connections. The dual voice coil made of pure copper is efficiently cooled, leading to improved heat dissipation. The enhanced surround made of elastomer reduces unwanted vibrations. The robust drive with ferrite magnets offers a high magnetic field density with low temperature dependence.

How is the cooling of the dual voice coil in the SN 8 MkII ensured?

The cooling of the SN 8 MkII from SUB19 is achieved through flow-optimized ventilation that runs both externally and internally through the hollow pole core. The double-sided cooling of the 2.5" dual voice coil, a feature in the class of 8" chassis, ensures that heat is dissipated efficiently. The pole core itself is designed with an extended length to optimally guide the magnetic field lines through the coil windings, even at high excursions. Together with the use of high-quality materials such as pure copper and optimized connections, lasting performance is ensured even at high sound pressure levels.

What specific material properties characterize the diaphragm of the SN 8 MkII?

The diaphragm of the SN 8 MkII from SUB19 is made of traditionally reinforced, single-sided pressed paper, which offers several advantages. Its light weight and the internal damping of the diaphragm effectively prevent eigenmodes. Additionally, the increased material thickness provides a high area moment of inertia, which is particularly important for stability in bass reflex and bandpass enclosures. The surround and diaphragm are connected with a double seam, further enhancing stability. The combination of these properties enables precise bass and outstanding performance that impresses at both low and high volumes.

How do the Thiele-Small parameters affect the performance of the SN 8 MkII?

The Thiele-Small parameters of the SN 8 MkII from SUB19 are crucial for the resulting performance. Values such as the resonant frequency (Fs) at 38.5 Hz and the effective diaphragm area (Sd) of 186.3 cm² are significant. These parameters influence building resonances, optimize bass behavior in different enclosure types, and make the Subwoofer ideal for applications in bass reflex and bandpass enclosures. The force factor (Bl) of 17.59 Tm and the mechanical quality factor (Qms) of 4.869 emphasize control during diaphragm movement, contributing to precision and efficiency in operation.

What is the maximum mechanical displacement of the SN 8 MkII and what advantages does it bring?

The maximum mechanical displacement of the SN 8 MkII from SUB19 is a key advantage, as it allows for the selection of resonance frequencies that lie outside the chassis's own resonances. This offers more design flexibility, especially in 6th-order bandpass constructions. The robust design, consisting of a stable basket design and the double-suspended centering made of Nomex, enables precise guidance of the coil, even with significant mechanical movement. This guarantees not only a high sound pressure output but also lossless deep bass with outstanding precision and impulse fidelity that impresses across all music genres.

How does the drive from ferrite magnets affect the performance of the SN 8 MkII?

The drive of the SN 8 MkII from SUB19 consists of two solid ferrite magnets that ensure a high magnetic field density and provide reliable performance. Ferrite magnets have lower temperature dependence and higher heat capacity compared to neodymium. This means that even with longer operating times, the properties of the Subwoofer remain stable. The extended pole core allows for optimal guidance of the magnetic field lines through the coil windings, even at low frequencies. These special magnetic properties contribute to the effective conversion of electrical energy into a powerful acoustic output.

How is mechanical stability achieved in the SN 8 MkII?

The mechanical stability of the SN 8 MkII from SUB19 is achieved through a variety of advanced design features. The aluminum die-cast basket increases structural integrity and can withstand high mechanical loads. Critical connections between the diaphragm and the coil carrier are firmly bonded with a special cyanoacrylate-based adhesive system. This is complemented by vulcanized rubber, which combines elasticity and strength to prevent brittle fracture. Additionally, the double centering made of Nomex is used to reliably guide the coil even with large excursions, while the three-dimensional bubble structure of the surround keeps the weight low and stability high.

What acoustic advantages does the foamed elastomer surround in the SN 8 MkII offer?

The foamed elastomer surround of the SN 8 MkII from SUB19 provides significant acoustic advantages through its three-dimensional bubble structure. This structure ensures high stability while maintaining low weight, minimizing unwanted resonances. This enables clear and precise bass reproduction. The surround is additionally connected to the diaphragm with a double seam, further enhancing stability. This guarantees clean and distortion-free sound reproduction even at high volumes, making the Subwoofer particularly suitable for intense music enjoyment, whether at low or high levels.

Can the SN 8 MkII be compatible with different car brands or models?

The SN 8 MkII from SUB19 is ideally suited for installation in many different vehicle types due to its compact design, regardless of the car brand. The dimensions and shape of the chassis should be considered, as they can be combined with various enclosure types, both in vehicles and in the home audio sector. The affordable adaptation to existing systems is possible thanks to its versatile applications. If no specific car brands or models are mentioned in the product description, it is advisable to check the exact measurements and requirements of the vehicle system to ensure optimal integration.

How does the improved coil diameter contribute to the performance of the SN 8 MkII?

The increased coil diameter of 2.5" in the SN 8 MkII from SUB19 is an important factor in enhancing the electrical load capacity of the Subwoofer. A larger coil can absorb and convert more electrical energy, allowing for the output of higher sound pressure levels. This improves the overall performance of the system, especially at low frequencies and high volumes. Furthermore, the larger coil achieves more efficient heat dissipation, minimizing the risk of overheating and contributing to a longer lifespan. The increased coil diameter, combined with high-quality components, ensures precise and voluminous bass.

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