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Accuton

C90-6-724

4" (10cm) midrange driver

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1.258,00€
1.258,00€ 1.258,00€
incl. VAT , possibly plus shipping

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Highlights

  • Impedance is 6 ohms, power handling is 100 watts.
  • Sensitivity is 89 dB, frequency range 150-6000 Hz.
  • Resonance frequency 82.58 Hz, effective membrane area 81 cm².
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brand: Accuton
Delivery time:
Available for delivery in 1-4 days
Number:
Couple
Watt RMS:
100
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The Accuton C90-6-724 is a midrange driver with a 90 mm ceramic 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 those of our Cell high and bass speakers. Its newly designed open underhung drive does not cover the back of the membrane and eliminates the occurrence of reflections and energy storage. A proprietary tensioning technique allows for easy mounting and adjustment to various front panel designs. A low-loss rubber surround and a thin fabric spider center the moving parts with high linearity.

We recommend our Accuton C90-6-724 for an application of 150 Hz - 6000 Hz.

Short description:

  • 9 cm midrange driver with ceramic membrane. A magnetic system with neodymium magnets drives the speaker. The underhung voice coil remains completely within the magnetic field during linear operation. It has a ventilated voice coil.

Mechanical Data

  • Overall diameter / front panel 124 mm
  • Cutout 124.4 mm
  • Minimum front panel thickness 8 mm
  • Construction height 56 mm
  • Weight 1.80 Kg

Thiele-Small Parameter

  • Sensitivity Spl 89 dB
  • Resistance (DC) Re 5.44 Ohm
  • Outdoor resonance frequency Fs 82.58 Hz
  • Equivalence Volume Vessel 5.1 Ltr
  • Mechanical Quality Qms 5.13
  • Electrical quality Qes 0.67
  • Total quality Qts 0.60
  • Effective membrane area Sd 81 cm²
  • Moving Mass Mms 8.45 Gr
  • Compliance of membrane tension Cms 0.44 mm/N
  • Mechanical resistance Rms 0.85 Kg*S

"Swing Coil Parameters"

  • Load capacity P 100 Watt
  • Impedance 6 Ohm
  • Linear displacement Xmax +/-3.0 mm
  • Swing coil carrier material Ti
  • Conductor material Cu
  • Inductance of the oscillating coil Le 0.13 mH
  • Power Factor Bl 5.95 N/A
  • Drive variant suspended
  • Ferrofluid in the air gap No

Enclosure Recommendation Closed:

  • closed box with 3.4 liters
  • from 97/61 Hz (-3dB/-8dB)

Bass reflex enclosure recommendation:

  • 13.9 Liter BR-Box
  • with HP50 of length 12 cm
  • from 44/38 Hz (-3dB/-8dB)

Frequency response:

C90-6-724

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 C90-6-724 features a 90 mm ceramic membrane that ensures precise mid-frequency output. The design provides an ideal acoustic center, identical to other Accuton Cell speakers. An open underhung drive prevents reflections and energy storage. The low-loss rubber surround and the fabric spider ensure high linearity. The drive is powered by a neodymium magnet system, complemented by a ventilated voice coil. Technical specifications include a sensitivity of 89 dB at an impedance of 5.44 Ohms and a construction height of only 56 mm.
The Thiele-Small parameters of the C90-6-724 are crucial for its performance characteristics. It has a sensitivity of 89 dB and a resistance Re of 5.44 Ohms. The free air resonance frequency Fs is 82.58 Hz. The equivalent volume Vas is 5.1 liters. The mechanical quality factor Qms is 5.13, the electrical quality factor Qes is 0.67, while the total quality factor Qts is 0.60. The effective diaphragm area Sd is 81 cm² and the moving mass Mms is 8.45 grams. These parameters, along with the compliance Cms of 0.44 mm/N, shape the oscillation behavior of the speaker.
The Accuton C90-6-724 midrange driver is optimized for use in the frequency range of 150 Hz to 6000 Hz and provides precise sound in this range. The linear excursion of +/- 3.0 mm allows for the reproduction of mid frequencies that are uncolored and clear. The diaphragm is made of ceramic, which leads to fast transient responses. The open underhung drive with its special diaphragm suspension efficiently dissipates energy. The carefully tuned loss rate ensures that vibrations are minimized, benefiting a clean sound image.
The speaker C90-6-724 has an overall front plate diameter of 124 mm, suitable for precision housing installations. The required cutout size is exactly 124.4 mm. A minimum thickness of 8 mm for the front plate is required for stable mounting. The compact height of 56 mm allows for flexible integration into a variety of speaker enclosures. The total weight of 1.80 kg demonstrates the quality of the materials used. Such compact dimensions simplify adaptation to existing systems, while the robust materials ensure long-lasting performance.
The drive of the Accuton C90-6-724 is powered by a sophisticated magnetic system with neodymium magnets. This system ensures high efficiency and strong performance. A special tensioning technique allows for fine adjustments to front plate designs. The underhung voice coil is a central technical feature, as it remains completely within the magnetic field during operation, which ensures excellent linearity. The voice coil uses a titanium core with copper conductor materials for precise coil movement. In combination with the low-loss rubber surround, a high dynamic play quality is ensured, creating a multifaceted sound landscape.
The installation of the C90-6-724 is relatively simple due to the proprietary clamping technology. Make sure to provide the minimum required cutout of 124.4 mm and maintain a thickness of at least 8 mm for the front panel. Keep in mind a construction height of 56 mm to avoid space issues in the enclosure. Although a closed design with 3.4 liters is recommended, the driver is also suitable for a bass reflex enclosure with 13.9 liters. Choose an option that best suits your listening room and preferred sound profile. Ensure that all mounting points are securely installed and that there are no unwanted vibrations.
The Accuton C90-6-724 is designed for use in various speaker enclosures. In a sealed enclosure of 3.4 liters, it delivers clear and precise mids starting from 97 Hz. Alternatively, the speaker can be housed in a bass reflex enclosure of 13.9 liters, which allows for an extension of the bass range down to 44 Hz. The precise tuning of the enclosure with the corresponding tuning frequency ensures optimal sound balance. Pay attention to the suggested port length in the bass reflex design for the best sound. This midrange driver is particularly suitable for applications where room-filling mids are desired.
The voice coil of the Accuton C90-6-724 offers impressive technical specifications. It has an impedance of 6 ohms and is designed for a power handling capacity of up to 100 watts. Thanks to the linear displacement of +/- 3.0 mm, it can reproduce high sound levels without distortion. The voice coil carrier material is titanium (Ti), while the conductor material is copper (Cu). This combination provides conductivity and stability, ideal for high performance. With an inductance of 0.13 mH and a force factor Bl of 5.95 N/A, the coil ensures top-notch motion control and precise sound reproduction for mid-frequency ranges.
The Accuton C90-6-724 is specifically designed for home and studio applications, as its enclosures and materials do not meet the conditions in automotive environments. Vibrations, temperature fluctuations, and weather conditions that typically occur in vehicles could impair its performance and lifespan. Instead, the Accuton Automotive series is recommended for use in vehicles, as it has been specifically developed for these environments. This series offers protection against external influences and guarantees consistently high audio quality. Contact the manufacturer or specialized dealers to explore the Carhifi version.
The materials play a central role in the performance of the Accuton C90-6-724. The ceramic membrane ensures fast and precise sound reproduction without distortion. The voice coil, made of titanium and copper, offers both stability and excellent electrical conductivity. The neodymium magnet system creates strong magnetic fields that effectively drive the voice coil. The ventilated construction ensures effective heat dissipation and prevents efficiency losses. By combining these materials, the C90-6-724 is capable of reproducing a wide frequency range with high precision and linear displacement.

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

4" (10cm) midrange driver

Features

  • Highlights

    • Impedance is 6 ohms, power handling is 100 watts.
    • Sensitivity is 89 dB, frequency range 150-6000 Hz.
    • Resonance frequency 82.58 Hz, effective membrane area 81 cm².

  • Uvp

    639

weight

1.8 kg

Watt RMS Load Capacity

100

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Your advantages with Masori

Buy the Accuton C90-6-724 midrange driver for a high-precision sound experience

Discover the Accuton C90-6-724, an outstanding midrange driver with a 90 mm ceramic diaphragm, ensuring the highest audio quality. With our Masori Lowest Price Guarantee, you'll always get the product at the best price. This new design offers an acoustic center consistent with the Cell tweeters and bass drivers and benefits from an open underhang drive for minimal reflections and energy storage. Benefit from a low-loss rubber surround and a thin fabric spider, which ensure high linearity. Don't miss the opportunity to purchase this system highlight online at an affordable price.

Effective power and frequency range of the Accuton C90-6-724

With a power handling of 100 watts and a sensitivity of 89 dB, the C90-6-724 midrange driver is ideal for the frequency range of 150 Hz to 6000 Hz. These specifications guarantee excellent sound fidelity and a fulfilling audio experience in home and studio applications. Higher or lower power handling could result in either distortion or a limited dynamic range. The impressive sensitivity of 89 dB is excellent for speakers of this size and ensures efficient conversion of electrical to acoustic energy—ideal for audiophile setups.

90 mm ceramic membrane and open underhang drive technology of the Accuton C90-6-724

The 90 mm ceramic cone not only offers a sophisticated design, but also a clear and pristine sound. Ceramic as a material is known for its rigidity and low mass, which minimizes resonance. Combined with the newly designed open underhang drive, which eliminates rear-end reflections, the C90-6-724 elevates the sound to a superior level. A heavier cone material could negatively impact response speed and muddy the sound.

High-quality materials and construction of the Accuton C90-6-724

Featuring a robust neodymium magnet motor and rear-ventilated voice coil, this midrange driver offers excellent heat dissipation and zero degradation due to magnetic saturation. The use of lightweight copper conductor material for the voice coil and titanium substrate creates an ideal balance between strength and lightness. These carefully selected conductor and substrate materials optimize the magnetic flux density in the air gap and ensure smooth, linear operation.

Thiele-Small parameters of the Accuton C90-6-724 explained in detail

The Accuton C90-6-724 midrange driver features astonishing Thiele-Small parameters, including a mechanical Q factor (Qms) of 5.13 and a total Q factor (Qts) of 0.60. The Qms value reflects the exceptional mechanical damping, while the Qts value indicates the balance between mechanical and electrical losses. This Qts value is ideal for well-damped enclosure applications. A higher or lower Qts value could result in less well-controlled excursion or overshoot in the frequency response.

Mechanical design and installation recommendations for the Accuton C90-6-724

The Accuton C90-6-724's mechanical precision is complemented by its impressive dimensions, with an overall diameter of 124 mm and a height of 56 mm. Weighing just 1.80 kg, it is comparatively lightweight, making it easy to handle. The recommended mounting hole diameter is 124.4 mm, with a minimum required front panel thickness of 8 mm. These specifications allow for flexible mounting options and a solid fit in diverse setup environments.

Cabinet recommendations: Closed and bass reflex applications of the Accuton C90-6-724

For optimal performance and sound experience, a 3.4-liter sealed enclosure or a 13.9-liter bass reflex system with an HP50 tube is recommended. These enclosure parameters ensure clean bass reproduction and minimize distortion. While the sealed enclosure excels at smooth low frequencies, the bass reflex system offers a stronger bass response, which is particularly beneficial in home theater systems.

The role of the membrane area and its efficiency

The Accuton C90-6-724 features an effective diaphragm area of ​​81 cm², which contributes to the distribution of a precise and powerful midrange. The efficient diaphragm size ensures sufficient air movement for a natural and dynamic reproduction. A smaller diaphragm area might lack presence, while a larger one would respond more sluggishly.

Support options and possibilities from masori.de

In addition to the option of on-site installation in Frankfurt (Oder), we offer comprehensive expert support, FAQs, and help to answer all your concerns and installation questions. Our audio blog also invites you to delve deeper into the topic and fully utilize the capabilities of the Accuton C90-6-724.