Eighteen Sound 8CX401F

Eighteen Sound 8CX401F
General Specifications Datasheet
Brand Eighteen Sound
Reference 8CX401F
Manufacturer website www.eighteensound.com
Size 8 in
200 mm
Type Coaxial
Impedance Z 8 Ω
Minimum impedance Zmin 6.1 Ω
Nominal Power P 280 W
Program Power Pmax 400 W
Sensitivity SPL 95 dB
Usable frequency range 65 - 20000 Hz
Recommended crossover 3000 Hz
Eighteen Sound 8CX401F Frequency response
Eighteen Sound 8CX401F Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 56 Hz
Surface area of cone Sd 227 cm²
DC resistance Re 5 Ω
Mechanical Q Qms 3.23
Electromagnetic Q Qes 0.38
Total Q factor Qts 0.34
Mechanical suspension compliance Cms 327 µm/N
Compliance equivalent air volume Vas 23.9 liters
Moving mass Mmd 16.03 g
Moving mass (including airload) Mms 18 g
Mechanical resistance Rms 1.96 N·s/m
BL product BL 9.3 T·m
Voice coil inductance Le 0.96 mH
Maximum linear excursion (one way) Xmax 5.8 mm
Maximum mechanical limit (one way) Xlim 9.5 mm
Efficiency η₀ 1.48 %
Efficiency bandwidth product EBP 147
Effective diaphragm diameter Ø 17 cm
Import this driver in a simulation software:
WinISD 18Sound 8CX401F.wdr
Hornresp 18Sound 8CX401F.txt
Basta! 18Sound 8CX401F.bastaelement
Eighteen Sound 8CX401F Dimensions
Dimensions
Overall diameter 210.0 mm
Baffle hole diameter 184.0 mm
Overall depth 150.5 mm
Flange thickness 14.5 mm
Net weight 4.4 kg
Materials of construction
Diaphragm material Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 51 mm
Coil material Edgewound Aluminum
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 8CX401F 280 95 56 227 3.23 0.38 24 5.8
Eighteen Sound 8MB400 280 95 64 227 3.23 0.43 24 5.8
SICA 8 S 2,5 CP 300 93 54 214 3.44 0.37 19 5.0
Eighteen Sound 8NMB420 280 95 61 220 4.00 0.31 33 5.8
Eighteen Sound 8NW650 300 96 63 227 3.70 0.27 18 5.5
Beyma 8WR250 250 95 62 220 2.40 0.26 18 6.0
Fane SOVEREIGN PRO 8-225 225 97 62 220 4.30 0.42 22 5.5
Celestion CF0820BMB 250 93 53 229 5.32 0.37 23 5.3
B&C Speaker 8MBX51 16Ω 200 97 68 220 3.30 0.43 22 6.0
Fane SOVEREIGN 8-225 225 97 62 213 4.30 0.42 22 5.5
Eighteen Sound 8MB500 280 95 74 230 2.66 0.51 22 6.0

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