DAYTON AUDIO EPIQUE E220CF-8 Speaker Driver Woofer Carbon Fiber 150W 8 Ohm 91dB 25Hz - 4500Hz Ø20.3cm

DAYTON AUDIO EPIQUE E220CF-8 Speaker Driver Woofer Carbon Fiber 150W 8 Ohm 91dB 25Hz - 4500Hz Ø20.3cm New
The open cast aluminum bowl holds the assembly firmly while allowing a large margin of manoeuvre at the back of the membrane to control reflections. To keep the voice coil and magnet at a reasonable temperature while minimizing compression and noise, the E160CF-8 benefits from an extensive motor ventilation system thanks to the EVS™ (Extensive Venting System) technology. No less than 16 openings under the spider, 9 peripheral vents in the coil air gap and a large double-flared aerodynamic vent through the pole piece, allow this efficient thermal control.

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Dayton Audio Epique E220CF-8

Speaker Driver Woofer Carbon Fiber 150W 8 Ohm 91dB 25Hz - 4500Hz Ø20.3cm

Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm

The open cast aluminum bowl holds the assembly firmly while allowing a large margin of manoeuvre at the back of the membrane to control reflections. To keep the voice coil and magnet at a reasonable temperature while minimizing compression and noise, the E160CF-8 benefits from an extensive motor ventilation system thanks to the EVS™ (Extensive Venting System) technology. No less than 16 openings under the spider, 9 peripheral vents in the coil air gap and a large double-flared aerodynamic vent through the pole piece, allow this efficient thermal control.

The design of the E220CF-8 Epic focuses on reducing distortion and increasing dynamics. The proprietary FEA-optimized motor uses a large neodymium magnet with top and bottom plates thick enough to provide impressive force in the air gap. The likeable part features a thick aluminum shorting ring that minimizes inductance and provides near-linear impedance up to 20kHz (less than 12Ω at 20kHz).

The membrane is moved by a 54mm double layer coil wound around a Titanium support which generates minimal eddy currents to improve efficiency and transient response. The membrane is made of carbon fiber and coated with epoxy. Beyond its aesthetic appearance, this membrane is extremely lightweight, particularly rigid and provides excellent damping for maximum control and a sound that is both natural and accurate. The rubber suspension and the large flat spider suspend the diaphragm and ensure its linear support in the excursion range, with a minimum of restriction, to further improve dynamics and transients.

The open cast aluminum bowl holds the assembly firmly while allowing a large margin of manoeuvre at the back of the membrane to control reflections. To keep the voice coil and magnet at a reasonable temperature while minimizing compression and noise, the E220CF-8 benefits from an extensive motor ventilation system thanks to the EVS™ (Extensive Venting System) technology. No less than 8 openings in the coil support, 16 large openings under the spider, 7 peripheral vents in the coil air gap and a large double-flared aerodynamic vent through the pole piece allow this efficient thermal control.

Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm

Technical characteristics

Specifications
Speaker driver typeWoofer
Nominal diameterØ20.3cm (8")
PowerRMS : 150W
Max : 300W
Impedance8Ω
Frequency response25Hz - 4500Hz
Sensitivity91.5dB @ 2.83V/1m
Voice coil diameterØ54mm (2.125")
Thiele-Small Parameters
Resonant frequency (Fs)26.9Hz
DC Resistance (Re)6.1Ω
Voice coil inductance (Le)0.7mH
Mechanical quality factor (Qms)7.14
Electromagnetic quality factor  (Qes)0.26
Total quality factor (Qts)0.25
Compliance equivalent volume (Vas)3.23 ft.³
Mechanical compliance of suspension (Cms)1.39mm/N
Force factor (BL)10Tm
Diaphragm mass inc. airload (Mms)25.2g
Max linear excursion (Xmax)5mm
Surface area of cone (Sd)216.4cm²
Materials
ConeCarbon fiber
SurroundRubber
Voice coil wireCopper
Voice coil formerTitanium
Frame / BasketCast Aluminum
MagnetNeodymium
Mounting informations
Overall outside diameterØ220mm (8.66")
Cutout diameterØ191mm (7.52")
Depth114.8mm (4.52")
Bolt circle diameterØ208.5mm (8.21")
Number of mounting holes6
Optimum cabinet size (Measured with BassBox 6 Pro)
Sealed volume0.29ft³
Sealed F391Hz
Vented volume0.63ft³
Vented F359Hz
Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm Dayton Audio Epique E220CF-8 Haut-Parleur de Grave Fibre de Carbone 150W 8 Ohm 91.5dB 25Hz - 4500Hz Ø20.3cm
 
Data sheet
Speaker Power (W RMS)150
Speaker TypeWoofer
Impedance (Ω)8
Loudspeaker diameter (cm)203
Diaphragm typeCarbon fiber
Efficiency / Sensitivity (dB)91
Xmax (mm)5
Lowest frequency25
Highest frequency4500
 
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DAYTON AUDIO EPIQUE E220CF-8 Speaker Driver Woofer Carbon Fiber 150W 8 Ohm 91dB 25Hz - 4500Hz Ø20.3cm
The open cast aluminum bowl holds the assembly firmly while allowing a large margin of manoeuvre at the back of the membrane to control...

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