ETON Arcosia 4-218 4" (10cm) Mid-Woofer

SKU: 4-218-ARCOSIA

50 Watt

Arcosia 4-218

SKU: 4-218-ARCOSIA

Technical Highlights

Nominal impedance 8 ohms, RMS power 50 W, sensitivity 87 dB.
Frequency response 70–20000 Hz, resonant frequency 53 Hz, Vas 7 l.
Effective piston area 50 cm², Q-factor Qts 0.39, weight 1.23 kg.
More technical details

€180,95

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Arcosia 4-218 by ETON Description

The ETON Arcosia 4-218 is a 4-inch (10 cm) mid-bass driver with an anodized magnesium diaphragm that is perforated and coated with olefin film. The dynamic cone geometry is made from magnesium composite materials and is complemented by a hand-coated dust cap. An airflow-optimized motor design and a ferrite magnet system with a special magnet geometry are integrated. The two-component diaphragm technology and the effective ventilation of the magnet system with air circulation and heat dissipation are part of the construction. The nominal impedance is 8 ohms, the RMS power is 50 W, and the sensitivity is 87 dB (2.83 V/1 m). The frequency range is from 70 to 20,000 Hz, the resonance frequency is 53 Hz, the effective piston area is 50 cm², and the equivalent volume is 7 liters.

Features

4-inch (10 cm) mid-bass driver
Anodized magnesium diaphragm, perforated and coated with olefin film
Two-component diaphragm technology
Dynamic cone geometry made from magnesium composite material
Hand-coated dust cap
Airflow-optimized motor design
Ferrite magnet system
Special magnet geometry
Ventilated magnet system with air circulation and heat dissipation

Technical Specifications

Nominal impedance: 8 ohms
Nominal power handling RMS: 50 W
Sensitivity: 87 dB (2.83 V/1 m)
Frequency response: 70–20,000 Hz
Resonance frequency (fs): 53 Hz
Mechanical Q factor (Qms): 6.11
Electrical Q factor (Qes): 0.42
Total Q factor (Qts): 0.39
Equivalent volume (Vas): 7 liters
Effective piston area (Sd): 50 cm²
Cone material: Magnesium composite material
Magnet type: Ferrite
Net weight: 1.23 kg

ETON Arcosia 4-218 Datasheet

Open datasheet

Frequently Asked Questions about Arcosia 4-218

What sound characteristics does the Eton Arcosia 4-218 offer?

The Eton Arcosia 4-218 delivers uncompromising sound quality with exceptional tonal balance. This is achieved through the dynamic cone geometry made from magnesium composite materials, which ensures an authentic sound. The combination of the anodized magnesium diaphragm with perforated olefin film prevents modal formation and acts as a partial vibration absorber. The result is a warm and balanced sound character that provides a truly dynamic listening experience. Especially if you enjoy listening to complex musical compositions, you will appreciate the detailed and uncolored sound produced by the Arcosia 4-218 speaker.

What technical specifications distinguish the Arcosia 4-218?

The Arcosia 4-218 has a nominal impedance of 8 ohms and a sensitivity of 87 dB (2.83V/1M). The frequency range extends from 70 to 20,000 Hz with a resonance frequency of 53 Hz. The effective piston area is 50 cm², and the ferrite magnet type supports excellent vibration behavior. The mechanical Q factor is 6.11, the electrical is 0.42, resulting in an overall Q factor of 0.39. These technical specifications support the outstanding sound of the speaker and make it a milestone in sound quality.

How is the sound quality of the Eton Arcosia 4-218 ensured?

The sound quality of the Eton Arcosia 4-218 is based on the two-component diaphragm technology. The use of magnesium composite material in conjunction with a perforated and olefin-coated diaphragm forms small, bubble-like bulges that act as partial vibration absorbers. This prevents the formation of modes and significantly contributes to the authentic and excellent sound reproduction of the speaker. Additionally, the airflow-optimized motor design ensures a balanced sound characteristic, with people responding enthusiastically to the clear, rich sound that remains consistent even at high volumes.

What frequencies does the Eton Arcosia 4-218 cover?

The Eton Arcosia 4-218 covers a frequency range of 70 Hz to 20,000 Hz. This bandwidth allows for effortless coverage of both deep bass and high frequencies. Importantly, the resonance frequency is at 53 Hz, which is particularly advantageous for bass reproduction. The special cone geometry and motor design of the speaker prevent the reproduction from losing clarity at higher frequencies. This enables precise and dynamic audio playback that meets the demands of even the most discerning music lovers.

What material is used for the diaphragm of the Arcosia 4-218?

The diaphragm of the Arcosia 4-218 is made from an innovative magnesium composite material. This unique material choice allows for a lightweight yet rigid construction, which is especially valued for its ability to efficiently absorb vibrations. The additional coating with a perforated olefin film creates bubble-like bulges and acts as a partial vibration absorber, making the sound clearer and more precise. The diaphragm material is a key factor contributing to the fantastic sound quality and audiophile characteristics of this speaker, which are unique in the market.

What tips are there for installing the Eton Arcosia 4-218 in a vehicle?

For the installation of the Eton Arcosia 4-218, it is important to consider the dimensions of 4 inches (4 inches). This size allows for installation in many standard speaker openings in vehicles. Ensure that there is enough space for air circulation around the speaker to avoid impairing performance. The positioning should ideally be in the area of the dashboard or door panel speakers to achieve the best possible sound in the car. Additionally, proper alignment and stable mounting should be ensured to minimize vibrations and optimize sound.

How does the ferrite magnet system enhance the sound of the Eton Arcosia 4-218?

The ferrite magnet system in the Eton Arcosia 4-218 is designed to create a symmetrical magnetic field that optimizes the speaker's vibration behavior. The precise geometry of this system allows for effective heat dissipation and air circulation, preventing dynamic losses even at high amplitudes. Especially with loud music or demanding dynamic sound, the sound quality remains impeccable, as compression effects are minimized. This qualifies the Arcosia 4-218 as an ideal speaker for audiophile applications where precision and fidelity in sound are of utmost priority.

What is special about the vibration behavior of the Arcosia 4-218?

The outstanding vibration behavior of the Arcosia 4-218 is due to the precisely symmetrical magnetic field geometry of the ferrite magnet. This, together with the innovative membrane structure made of magnesium composite materials, ensures undistorted sound reproduction and minimizes non-linear distortions. The perfect balance of the mechanical and electrical Q factors (6.11 and 0.42) also contributes to the speaker achieving an integrated overall Q factor of 0.39, which ensures high precision and accuracy in playback. This allows even the subtlest musical details to be heard excellently at all times.

What role does the dust cap play in the Eton Arcosia 4-218?

The hand-coated dust cap of the Eton Arcosia 4-218 plays a crucial role in sound quality, as it acts as an acoustic extension of the cone. It supports the airflow-optimized motor design, thereby enhancing the overall sound impression. Additionally, it minimizes potential distortions at high frequencies and ensures a coherent and harmonious sound. The interaction between the dust cap and the membrane is tuned in such a way that tonal coloration or unwanted artifacts are avoided. This allows you to experience music in its purest form – authentic, powerful, and detailed.

What makes the appearance of the Eton Arcosia 4-218 unique?

The appearance of the Eton Arcosia 4-218 is unique due to the combination of an anodized magnesium membrane with a perforated olefin film. The resulting bubble-shaped bulges are not only functional partial vibration absorbers but also give the speaker a distinctive aesthetic quality. This visual sophistication sets the speaker apart in the market and appeals to both technology and design enthusiasts. With its elegant yet functional design, the Arcosia 4-218 seamlessly fits into high-quality audio systems and adds a stylish ambiance to any room or car.