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ETON

Arcosia 4-208

4" (10cm) midrange driver

296,10€
329,00€ 296,10€
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Highlights

  • Power 50 watts RMS, nominal impedance 8 Ω, frequency range 70-20000 Hz.
  • Resonance frequency 53 Hz, DC resistance 5.8 Ω, Qms 6.11.
  • SPL 87 dB, voice coil inductance 0.35 mH, mechanical Xmax +/8.2 mm.
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brand: ETON
Delivery time:
Available, in 2-5 days with you
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Watt RMS:
50
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ETON-Arcosia 4-208-4" (10cm) Tiefmitteltöner-masori-kaufen
296,10€
329,00€ 296,10€

The ETON Arcosia 4-208 4" (10cm) midrange driver features a dynamic membrane geometry made of magnesium composite materials and produces an authentic sound. The hand-coated dust cap and the flow-optimized motor design enhance the balanced and detailed sound impression.

The Arcosia series represents the highest musical demands ever placed on a loudspeaker chassis. Arcosia stands for uncompromising sound quality.

The anodized magnesium membrane was perforated in an extremely elaborate process and coated with an olefin film. These perforations, in conjunction with the covering olefin film, create fine, bubble-shaped bulges that act like small partial vibration absorbers, thus largely preventing the formation of all modes. Furthermore, this fusion of the two components offers a more than exclusive appearance that is unmatched in the loudspeaker chassis market.

The special two-component membrane technology gives the Arcosia series excellent musical properties, which are particularly expressed in an outstanding tonal balance and warm sound characteristics. The soundstage is presented authentically and with impressive ease, creating the impression of a multi-channel system. Additional attention has been paid to the ferrite magnet system.

The special design of the magnet geometry results in a nearly perfectly symmetrical magnetic field, creating excellent vibration behavior. The particularly effective ventilation of the magnet system with optimal air circulation and heat dissipation minimizes compression effects during dynamic musical passages and large amplitudes.

properties

  • Uncompromising sound quality
  • Unadulterated sound reproduction
  • Frequency range: 70 - 20000 Hz
  • A true "milestone of sound"

Technical Data

  • Nominal impedance Zn 8 Ω
  • Direct current resistance Re 5.8 Ω
  • Resonance frequency f 53 Hz
  • Compliance of the suspension CMS 1.99 mm/N
  • Mechanical Quality Qms 6.11
  • Electrical quality Qes 0.42
  • Total quality Qts 0.39
  • Mechanical resistance RMS 0.27 kg/s
  • Total moving mass (including moving air mass) MMD 4.5 g
  • Effective radiating area SD 50 cm²
  • Inductance oscillating coil Le 0.35 mH
  • Power Factor BL 4.3 Tm
  • Xmax electric +/- 4.0 mm
  • Xmax mechanical +/- 8.2 mm
  • Equivalent volume VAS 7.0 dm³
  • Average sound pressure level SPL 1W/1m 87 dB SPL
  • Load capacity 50 Watts RMS
The ETON Arcosia 4-208 is characterized by its dynamic membrane geometry made of magnesium composite materials. The membrane has been intricately perforated and coated with an olefin film. This combination creates fine, bubble-shaped bulges that act as small partial vibration absorbers and prevent the formation of resonance modes. As a result, the speaker offers uncolored sound reproduction and provides excellent tonal balance. The flow-optimized motor design and symmetrical magnet geometry maximize vibration efficiency, which is particularly beneficial for dynamic musical passages.
The ETON Arcosia 4-208 speaker covers a wide frequency range from 70 Hz to 20,000 Hz. This allows for detailed reproduction of basses up to the highest tones. The speaker is particularly known for its uncolored sound reproduction, meaning that all frequency ranges are represented evenly, without distortion of timbre. Additionally, the special two-component membrane technology primarily supports excellent tonal balance.
The ETON Arcosia 4-208 has several relevant Thiele/Small parameters. The resonance frequency (f) is 53 Hz, which supports low frequencies. The mechanical quality factor (Qms) is 6.11, while the electrical quality factor (Qes) is at 0.42. The total quality factor (Qts) records a value of 0.39. The moving mass (MDM) is 4.5 g and the inductance of the voice coil (Le) is 0.35 mH with a force factor (BL) of 4.3 Tm. These parameters contribute to the excellent performance and sound fidelity of the speaker.
The ETON Arcosia 4-208 speaker has an RMS power handling of 50 watts. This means it can be continuously operated at a power of 50 watts without the risk of overload. This capability is ideal for demanding applications where clear and strong audio output is required. The effective ventilation of the magnetic system ensures optimal heat dissipation, minimizing the risk of compression effects at high volumes.
The membrane geometry of the Arcosia 4-208 with an anodized magnesium membrane has a decisive impact on the sound. The perforations of the membrane, combined with the olefin film, create fine bulges that prevent the formation of modes. This optimizes sound quality by reducing unwanted sound waves and facilitates precise sound reproduction. The special motor design, along with the symmetrical magnet geometry, enables a balanced oscillation behavior and thus a sound precision that is crucial for detailed music playback.
The tonal balance of the Arcosia 4-208 is achieved through innovative two-component membrane technology. The magnesium membrane is equipped with perforations that are balanced with an olefin film. This structure acts as an absorber for partial vibrations. The perfectly calibrated magnet geometry produces an almost symmetrical magnetic field, resulting in remarkably uniform vibration behavior. Additionally, the optimized air circulation ensures constant cooling and efficiency of the system, keeping the reproduction in terms of frequencies and volume even and warm.
The ETON Arcosia 4-208 has a nominal impedance of 8 Ω, connected with a DC resistance of 5.8 Ω. An impedance of 8 Ω is standardized and allows compatibility with most amplifiers and audio systems. It affects the electrical integration and efficiency of the speaker in the system circuit. A low DC resistance also supports the signal flow, which improves the dynamics and responsiveness of the speaker regarding the audio input. These characteristics lead to optimized audio performance, especially at high volumes.
The maximum electrical displacement (Xmax) of the ETON Arcosia 4-208 is +/- 4.0 mm, while the mechanical displacement reaches +/- 8.2 mm. This describes the maximum movement range of the diaphragm without distortion. Such displacement is particularly important for producing low frequencies, as it displaces more air to effectively generate these tones. The robust construction and diaphragm technology allow for these displacements to be achieved while maintaining sound precision. Therefore, they are crucial for dynamic musical experiences, especially with deep bass.
The ETON Arcosia 4-208 has an effective radiation area of 50 cm². This size allows the speaker to move a considerable amount of air, resulting in a powerful and clear sound image. The radiation area is crucial for the ability to distribute frequencies evenly in the room and to create the widest possible 'Sweet Spot'. A larger radiation area improves bass reproduction and overall volume performance, enhancing the effect of a multi-channel system and fully immersing the listener in the sound experience.
When installing the ETON Arcosia 4-208 in the vehicle, compatibility regarding the 10 cm (4") format is important. It is crucial to ensure that the intended installation location provides enough space for the speaker and also for sound development. Before installation, the opening in the vehicle should be checked for the necessary dimensions. Additionally, care should be taken to ensure that the speaker is securely installed to fully exploit all the advantages of its sound quality. Proper sealing and fastening maximize the acoustic performance, especially in dynamic driving situations.

ACR Brändli + Vögeli AG
Roland Brändli
Bohrturmweg 1
5330 Bad Zurzach
Switzerland

EU responsible person:
ACR S + V GmbH
Industriestr. 35
79787 Lauchringen
Germany

Contacts: compliance@acr.eu

Product Specifications

Manufacturer

ETON

Product type

4" (10cm) midrange driver

Features

  • Highlights

    • Power 50 watts RMS, nominal impedance 8 Ω, frequency range 70-20000 Hz.
    • Resonance frequency 53 Hz, DC resistance 5.8 Ω, Qms 6.11.
    • SPL 87 dB, voice coil inductance 0.35 mH, mechanical Xmax +/8.2 mm.

  • Uvp

    329

weight

0.5 kg

Technical data

Watt RMS Load Capacity

50

configurators

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Your advantages with Masori

ETON ARCOSIA 4-208: 4 midrange speaker buy online – Highlights

The ETON ARCOSIA 4-208 is your entry into uncompromising soundscapes. Buy it online now at a great price at masori.de. With its dynamic cone geometry made of magnesium composite materials, this 4 (10 cm) midrange driver produces an authentic sound. A hand-coated dust cap and flow-optimized motor design ensure a balanced sound. A frequency range of 70 to 20,000 Hz delivers rich detail from bass to treble. Perfect sound reproduction thanks to the resonant 53 Hz frequency. Experience the exclusive look and structure of the anodized magnesium cone combined with olefin foil. The high average sound pressure level of 87 dB SPL ensures powerful performance. Play large amplitudes effortlessly with compression minimization. Take advantage of the Masori lowest price guarantee; every product is always at the lowest price.

Magnesium composite membrane geometry of the ETON ARCOSIA 4-208

The diaphragm geometry of the ETON ARCOSIA 4-208 midrange driver is constructed from high-quality magnesium composite materials, delivering a truly authentic sound. This combination ensures excellent tonal balance and the renowned warm sound characteristics. Thanks to the special processing, the formation of modes is virtually eliminated, so you can rely on pristine sound reproduction. A more precise diaphragm would further enhance sound fidelity, but the current configuration is optimal for musically complex recordings.

Anodized magnesium membrane with olefin foil

The ETON ARCOSIA 4-208 impresses with an anodized magnesium cone, which is perforated in an extremely complex process and coated with an olefin foil. This material combination is not only visually exclusive, but also acts as a partial vibration absorber. You get sound reproduction that minimizes bubble resonances and prevents modes. An optimized cone structure could theoretically reduce resonances even further, but this process already offers outstanding quality.

Frequency range 70 - 20000 Hz: Detailed acoustics

The frequency range of the ETON ARCOSIA 4-208 extends from 70 Hz to 20 kHz, providing a comprehensive and detailed acoustic experience. With this bandwidth, the midrange driver captures both deep bass frequencies and brilliant highs with ease. A wider frequency range would be advantageous in extreme situations, but this configuration already offers extremely harmonious reproduction for many in-car applications.

Resonance frequency of 53 Hz of the ETON midrange driver

The ETON ARCOSIA 4-208's 53 Hz resonance frequency is particularly noteworthy, as it enables the speaker to deliver efficient bass reproduction. This frequency ensures that the midrange driver, when paired with a subwoofer, seamlessly covers a wide soundscape. A higher resonance frequency would diminish bass performance, which is rather impractical for automotive applications.

Nominal impedance of 8 Ω

With a nominal impedance of 8 ohms, the ARCOSIA 4-208 provides optimal connection to common amplifiers, ensuring stable sound transmission. This impedance value efficiently supports power consumption and minimizes distortion; however, a lower impedance could increase amplifier loading and thus distortion.

Efficiency and SPL value of 87 dB

The ETON ARCOSIA 4-208 features an average sound pressure level of 87 dB SPL, ensuring excellent efficiency with low amplifier loading. This SPL value means that even less powerful amplifiers can drive the midrange driver effectively without compromising sound quality. A higher SPL would further enhance the speaker's performance, but may also affect the level of detail.

Optimized ferrite magnet system: Symmetrical oscillations

The specially designed ferrite magnet system of the ETON ARCOSIA 4-208 ensures a nearly perfectly symmetrical magnetic field. This enables exceptionally stable operation, even during dynamic musical passages. The balanced magnet geometry minimizes compression effects and ensures a clear and precise sound experience without distortion. An asymmetrical magnetic field could significantly impair sound quality, especially at high volumes.

Thiele-Small parameters of the ARCOSIA 4-208: Qms, Qes and Qts

The Thiele-Small parameters of the ARCOSIA 4-208 include a mechanical Q factor (Qms) of 6.11, an electrical Q factor (Qes) of 0.42, and a total Q factor (Qts) of 0.39. These values ​​are crucial for the speaker's sound reproduction efficiency and resonance behavior. A Qts value close to 0.4 indicates excellent performance in bass-reflex enclosures. Higher Q values ​​may compromise bass extension, while lower Qes values ​​optimize electrical damping.

Xmax values ​​for mechanical and electrical deflection

The ETON ARCOSIA 4-208 offers an electrical excursion Xmax of ±4.0 mm and a mechanical excursion of ±8.2 mm, allowing for considerable dynamic freedom. These excursion values ​​are crucial for reproducing powerful bass impulses and reliably controlling the diaphragm. A higher Xmax would allow for more volume, but could also increase the mechanical stress on the diaphragm, potentially leading to distortion.

Inductance and mass: Optimized electroacoustics

The ARCOSIA 4-208 has a voice coil inductance of 0.35 mH and a total moving mass of 4.5 g. These parameters influence the overall electroacoustic efficiency of the loudspeaker. While the optimized inductance minimizes distortion in the frequency response, the low moving mass contributes to a fast response time and optimal reproduction accuracy. A higher weight can impair response time, while a lower inductance could improve the high-frequency response.

Effective radiating area and mounting options

The ETON ARCOSIA 4-208's effective dispersion area is 50 cm², making it ideal for compact in-car installations. This midrange speaker can be easily installed in doors or dashboards, offering flexibility in placement. A larger surface area could generate more sound pressure, but often requires more space. Get additional support and installation tips on Masori's on-site installation in Frankfurt (Oder) , expert support FAQ & help or get inspired in the Audio Blog .