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Accuton

AS190-9-251

8" (20cm) Subwoofer

1.099,00€
1.099,00€ 1.099,00€
incl. VAT , possibly plus shipping

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Highlights

  • Bass speaker with 250 watts of power, impedance of 9 ohms.
  • Voice coil 78 mm, rear-ventilated, made of Ccaw, 1.05 mH inductance.
  • Linear deflection +/9 mm, membrane area 202 cm², 14 kg weight.
Seen more cheaply Personal Offer
brand: Accuton
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS:
250
Subwoofer Type:
ferrite
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Accuton-AS190-9-251-8" (20cm) Subwoofer-masori-kaufen
1.099,00€
1.099,00€ 1.099,00€

The Accuton AS190-9-251 is a bass speaker with a diameter of 190 mm and an aluminum honeycomb sandwich membrane. It is exclusively designed for use in home hi-fi applications and must not be installed in vehicles under any circumstances. The new design allows for an ideal acoustic center that is identical to Accuton's CELL tweeters and midrange drivers.

The novel overhang construction combines the advantages of traditional over- and under-hang constructions and delivers a high linear displacement with extremely low distortion. A particularly hard aluminum sandwich membrane has been developed for the CELL bass drivers, allowing for very low delay and energy storage. The hidden centering reduces the overall outer diameter and enables a linear mechanical displacement of up to +/- 16 mm. A newly developed centering spider allows for large displacement without compression. We recommend our Accuton AS190-9-251 for applications from 30 Hz to 1000 Hz.

Short description:

  • 19cm subwoofer with aluminum sandwich membrane. It has a ventilated voice coil.

Mechanical Data

  • Overall diameter / front panel 190 mm
  • Cutout 170 mm
  • Minimum front panel thickness 16 mm
  • Construction height 137 mm
  • Magnet height 52 mm
  • Magnet diameter 156 mm
  • Screw holes Screws Din 7984 / Ø 4.50 mm
  • Weight 14 Kg

Thiele-Small Parameter

  • Sensitivity Lp 84 dB
  • Resistance (DC) Re 8.6 Ohm
  • Outdoor resonance frequency Fs 33.4 Hz
  • Equivalence Volume Vessel 26.7 Ltr
  • Mechanical Quality Qms 4.75
  • Electrical quality Qes 0.49
  • Total quality Qts 0.44
  • Effective membrane area Sd 202 cm2
  • Moving mass Mms 49.4 Gr
  • Compliance Membrane Tension Cms 0.46 mm/N
  • Mechanical resistance Rms 2.18 Kg*S

"Swing Coil Parameters"

  • Load capacity P 250 watts
  • Impedance 9 Ohm
  • Linear displacement Xmax +/-9 mm
  • Diameter of the vibrating coil 78 mm
  • Swing coil carrier material Ti
  • Leader material Ccaw
  • Inductance of the oscillating coil Le 1.05 mH
  • Power factor Bl 13.5 N/A
  • Drive variant Overhanging
  • Ferrofluid In The Air Gap No

Enclosure Recommendation Closed:

  • Vb: 11L, -9dB @ 40Hz, F-3dB: 63Hz, Q: 0.71 (optimal)
  • Vb: 35L, -7dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)

Enclosure recommendation bass reflex:

  • Vb: 24L, Port diameter: 70mm, Length: 300mm, Fres: 36Hz, F-3dB: 36Hz, Q: 0.58 (optimal)
  • Vb: 35L, Port diameter: 70mm, Length: 245mm, Fres: 33Hz, F-3dB: 30Hz, Q: 0.50 (extended bass)

Frequency response:

AS190-9-251

Note: Not suitable for use in vehicles.

  • This speaker chassis has been specifically designed for use in home and studio applications. For automotive applications, we recommend using the special Automotive series from Accuton, which is offered by Masori upon request.
  • The automotive version (Accuton Carhifi version) of Accuton meets strict automotive standards and is specifically designed for use in passenger cars and various other vehicles. It is resistant to vibrations, weather influences, heat, and cold that can occur in an automotive environment. This ensures optimal audio quality and reliability.
  • Contact us at Masori for more information about the Carhifi automotive version of Accuton. We are happy to help you find the right solution for your needs in the automotive sector and to enable an optimal sound experience in your vehicle.



    Not suitable for use in vehicles.
  • This speaker chassis was specifically designed for use in home and studio applications. For automotive applications, we recommend using Accuton's special automotive series, which is available from Masori upon request.


  • The Accuton Carhifi version meets strict automotive standards and is specifically designed for use in cars and a wide variety of other vehicles. It is resistant to vibrations, weather conditions, heat, and cold that can occur in an automotive environment, ensuring optimal audio quality and reliability.


  • Contact us at Masori for more information about the Accuton Car HiFi Automotive version. We'll be happy to help you find the right solution for your automotive needs and provide an optimal sound experience in your vehicle.



The Accuton AS190-9-251 features a diameter of 190 mm, an aluminum honeycomb sandwich membrane, and a overhang construction that allows for low distortion and linear displacement. With a sensitivity of 84 dB and a power handling of 250 watts, it offers solid performance. The voice coil is vented and measures 78 mm in diameter. Its total weight is 14 kg, and the Thiele-Small parameters emphasize its acoustic precision. It particularly shows its strengths at frequencies from 30 Hz to 1000 Hz. A vented voice coil with a force factor Bl of 13.5 N/A underscores its high efficiency.
For the Accuton AS190-9-251, the Thiele-Small parameters are crucial for its performance. The free-air resonance frequency is 33.4 Hz, the mechanical quality factor (Qms) is 4.75, and the electrical quality factor (Qes) is 0.49, resulting in a total quality factor (Qts) of 0.44. These values define its efficiency and bass reproduction. The equivalent volume (Vas) is 26.7 liters, indicating its capability for low-frequency reproduction. Its efficiency is highlighted by a high sensitivity of 84 dB and a force factor (Bl) of 13.5 N/A. Together, they significantly influence the sound behavior and dynamic reproduction of the subwoofer.
For the Accuton AS190-9-251 subwoofer, different enclosure designs are recommended. In a sealed enclosure, two options are ideal: a volume of 11 liters at -9dB @ 40Hz results in an F-3dB of 63Hz and a Q of 0.71. The second variant includes 35 liters, -7dB @ 40Hz with an F-3dB of 70Hz and a Q of 0.50, for extended bass. Bass reflex enclosures include a volume of 24 liters with a port diameter of 70 mm and a length of 300 mm, resulting in a resonance frequency (Fres) of 36Hz at F-3dB of 36Hz. A larger volume of 35 liters with a port length of 245 mm further extends the bass range.
The Accuton AS190-9-251 is not suitable for use in vehicles. It was specifically designed for home and studio applications and does not meet the special requirements of automotive environments. Instead, Accuton offers a special Automotive series that is tailored to the conditions in vehicles, such as vibration resistance and temperature stability. For automotive applications, the Carhifi version from Accuton can be requested through Masori. This version meets the high demands for audio quality and reliability in vehicles. However, for use in home or studio setups, the AS190-9-251 is ideal due to its special diaphragm and construction.
The aluminum sandwich membrane of the Accuton AS190-9-251 is special because it is extremely stable and resilient, with an exceptionally low energy storage and delay. This membrane technology combines excellent stiffness with minimized weight, resulting in significantly reduced membrane distortion and maximum linear displacement. Its construction from a honeycomb sandwich structure effectively avoids unwanted resonances, leading to precise and clear sound reproduction, especially in the bass range. If you want to meet high sound demands in home and studio applications, it delivers outstanding low-frequency reproduction with minimal distortion.
The Accuton AS190-9-251 subwoofer is characterized by specific voice coil features, including a vented design that optimizes heat dissipation and enhances performance. The voice coil diameter is 78 mm, while the voice coil carrier material is made of titanium, which increases stability and durability. The conductor material is CCAW (copper-clad aluminum wire) and the inductance is 1.05 mH, supporting a dynamic audio profile. The impedance is 9 ohms, with a power handling capacity of 250 watts and a linear excursion Xmax of +/-9 mm. It does not use ferrofluid in the air gap, promoting a more natural-sounding bass reproduction.
The force factor Bl with a value of 13.5 N/A in the Accuton AS190-9-251 plays a crucial role in sound output. A higher force factor means a stronger interaction between the coil and the magnetic field, which increases the ability to precisely control the diaphragm movement. This leads to a more direct and dynamic sound reproduction, especially in the bass range. The force factor affects efficiency by converting electrical power into mechanical movement and helps to drive the speaker accurately. Especially for applications that require clear bass definition, this value provides a convincing answer.
The mechanical quality Qms of 4.75 is a measure of the mechanical damping of the suspension and centering of the Accuton AS190-9-251. It indicates how well the speaker compensates for mechanical losses. A higher Qms value means less mechanical damping, which suggests greater freedom of movement for the diaphragm. In conjunction with the balanced electrical quality Qes of 0.49, this results in a total quality Qts of 0.44. These values directly influence the resonance characteristics and frequency response, allowing for accurate sound reproduction, especially in the low-frequency range. Therefore, the mechanical quality is a central factor for the quality of the bass speaker.
The effective diaphragm area Sd of the Accuton AS190-9-251, at 202 cm², is a crucial factor for the volume and efficiency of the low-frequency output. A larger diaphragm area means more air displacement, which leads to higher sound pressure and thus louder and fuller bass sounds. The Sd directly contributes to the performance of the driver by improving efficiency and enhancing sound projection. Especially at low frequencies, it is essential for achieving strong and full bass reproduction. The uniqueness of this size results from the special diaphragm construction of the speaker, which provides both precision and pressure.
The ventilated voice coil of the Accuton AS190-9-251 offers significant advantages in operation. It helps dissipate heat generated by the current flow, which enhances the performance and reliability of the speaker. This protects the voice coil from thermal overloads and ensures consistent sound quality even at maximum load of 250 watts. The ventilation supports the linearity of the voice coil movement, minimizing distortion and ensuring clear audio playback. Especially in long-term use, this design approach increases the durability and efficiency of the woofer system and is therefore a key feature of its design.

THIEL & PARTNER GmbH
Adrian Bankewitz Dirk Vaehsen
Rommerskirchener Str. 21 / Unit 25 Rolling Mill
D-50259 Pulheim
Germany

Contact: info@accuton.com

Product Specifications

Manufacturer

Accuton

Product type

8" (20cm) subwoofer

Features

  • Highlights

    • Bass speaker with 250 watts of power, impedance of 9 ohms.
    • Voice coil 78 mm, rear-ventilated, made of Ccaw, 1.05 mH inductance.
    • Linear deflection +/9 mm, membrane area 202 cm², 14 kg weight.

  • Uvp

    1,099

weight

6.5 kg

Watt RMS Load Capacity

250

configurators

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Your advantages with Masori

Accuton AS190-9-251 bass speaker: Buy power and precision online

The Accuton AS190-9-251 is a masterpiece of audio engineering, offering impressive acoustic performance thanks to its aluminum honeycomb sandwich cone. With a diameter of 190 mm, it delivers a deep, low-frequency sound that blends harmoniously with the renowned Accuton CELL drivers for the tweeter and midrange. This innovation creates an ideal acoustic center and, together with the innovative overhang design, offers high linear excursion with extremely low distortion. You benefit from incredible depth and clarity in the frequency range from 30 Hz to 1000 Hz. The Masori Lowest Price Guarantee gives you the peace of mind that you're getting the AS190-9-251 at the best price.

Technical high-end performance of the Accuton 190 mm bass speaker

With a voice coil power handling of 250 watts, the Accuton AS190-9-251 outshines the competition. The voice coil itself is rear-vented, with a diameter of 78 mm and made of titanium, and its CCAW conductor material produces an impedance of 9 ohms. These designs ensure minimal power loss and maximize the speaker's efficiency. With a DC-side resistance of 8.6 ohms, the AS190-9-251 operates in its optimal power range and delivers outstanding audio quality. Such values ​​reflect exceptional adaptability for stationary applications in the home or studio.

Radical reduction of distortion in the Accuton 19 cm bass speaker

The Accuton AS190-9-251's innovative overhang design drastically minimizes distortion while providing a linear maximum excursion of +/- 16 mm. Thanks to this design, you'll enjoy unprecedented clarity and precision in the bass range. The integration of the newly developed centering spider allows the speaker to handle significant diaphragm excursions of up to 9 mm linearly without suffering from compression. Such specifications are ideal for home theater or music production applications where precision and transparency count.

Frequency response of the 19 cm Accuton bass speaker: Perfect bandwidth

The AS190-9-251 operates within a recommended frequency range of 30 Hz to 1000 Hz, making it suitable for both low and mid-frequency applications. This makes it an excellent choice for home and studio applications where a wide spectrum of tonal colors and textures is required. Such a wide frequency response allows for effortless coverage of both the low and mid frequencies. This frequency response is crucial for ambitious and detail-loving sound aesthetes seeking to expand their acoustic horizons.

Optimized design and installation recommendations for the Accuton bass speaker

The AS190-9-251 has an overall diameter of 190 mm and fits into a 170 mm hole cutout. With a minimum front panel thickness of 16 mm, it can be mounted in a wide variety of enclosures. Its height of 137 mm and a magnet height of 52 mm make it easy to install in closed or bass-reflex systems. Its enclosure recommendations enable optimized sound reproduction in both compact and extended applications. This flexibility is advantageous for project rooms or studios that rely on customized audio systems.

Thiele-Small Parameter: The technical excellence of the 190 mm Accuton bass speaker

The Accuton AS190-9-251 subwoofer boasts outstanding Thiele-Small parameters. A total quality factor (Qts) of 0.44, a free-air resonance frequency (Fs) of 33.4 Hz, and a high equivalent volume (Vas) of 26.7 liters produce efficient, deep bass. The mechanical quality factor (Qms) of 4.75 ensures stability and control. These parameters indicate that the loudspeaker can be used equally effectively in both sealed and bass-reflex enclosures, as they allow for precise prediction of acoustic behavior.

Accuton bass speakers for individual solutions in cabinet construction

For applications in home construction projects or studios, a sealed enclosure volume of 11 to 35 liters is recommended. This ensures precise bass reproduction without overshoot. In a bass reflex setup, 24 to 35 liters is ideal, with a port with a diameter of 70 mm and a length of 245 mm ensuring balanced bass. These differences in enclosure technology allow for fine-tuning, depending on the spatial requirements and sound preferences.

Choice of materials and weight: Robustness of the 14 kg Accuton AS190-9-251 loudspeaker

The Accuton AS190-9-251 impresses with its robust weight of 14 kg, achieved through the use of high-quality materials such as aluminum and titanium. This physical stability minimizes any unwanted vibrations and ensures maximum rigidity while simultaneously minimizing the weight of the diaphragm. This virtually eliminates resonance-induced sound coloration, which is crucial in a studio environment. A solid cabinet combined with premium diaphragm materials elevates sound quality to a new level.

Customer support and expert advice for Accuton loudspeaker systems at Masori

Masori not only offers the right product, but also first-class service. With on-site installation in Frankfurt (Oder) , the ideal sound character can be achieved quickly and precisely. Expert support, FAQs and help , are available to answer questions and ensure optimal use. Deepen your knowledge and understanding of the audio world in the Masori Audio Blog , which continually offers useful content to help you get the most out of your Accuton loudspeaker.