Arcosia 4-218 Zertifiziert

• 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

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