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18SOUND 8CX401F

18SOUND 8CX401F

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18SOUND (Eighteen Sound) 8CX401F — 8" / 8 inch Coaxial Driver · Coax / Coaxial Driver · Ferrite
2"/1" voice coils · 8 Ω
Part no.: 42A-CHS-KO-18S-0001

263.00 € 263.0 EUR 263.00 €

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  • Manufacturer
  • Category
  • Series
  • Magnet
  • Impedance (Ω)
  • Power handling (W)
  • Sensitivity (dB)
  • Frequency from (Hz)
  • Frequency to (Hz)
  • Diameter
  • Voice coil (inch)
  • Mounting depth (mm)
  • Weight (kg)
  • Re (Ω)
  • Le (mH)
  • Fs (Hz)
  • Qms
  • Qes
  • Qts
  • Vas (l)
  • Xmax (mm)
  • BL (Tm)
  • Mms (kg)
  • Sd (m²)

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18SOUND 8CX401F — 8" · Coaxial Driver

280 W AES · 95 dB Sensitivity · Frequency range 65 Hz – 6100 Hz

Technical data

  • Diameter: 8 "
  • Voice coil: 2 "
  • Power handling: 280 W AES
  • Sensitivity: 95 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 4.4 kg
  • Mounting depth: 150 mm
  • Frequency range: 65 – 6100 Hz
  • Cone material: Polyester
  • Coverage angle: 90 °
  • Rec. crossover: 3.0 kHz

Datasheet (PDF) · Manufacturer page

Series: CX · Part no.: 42A-CHS-KO-18S-0001

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs56 Hz
Total Q Qts0.34
Electrical Q Qes0.38
Mechanical Q Qms3.23
Equivalent volume Vas23.9 l
Moving mass Mms18.0 g
Cone area Sd227 cm²
Linear excursion Xmax5.8 mm
Force factor BL9.3 Tm
DC resistance Re5 Ω
Voice coil inductance Le0.96 mH

Enclosure suggestion

The EBP of 147 suggests a bass-reflex enclosure. EBP = fs / Qes = 56 / 0.38

Sealed (Qtc 0.707)

Enclosure volume Vb
7.2 l
System resonance Fc
116 Hz
Cut-off frequency F3
116 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
13.6 l
Tuning frequency Fb
67 Hz
Cut-off frequency F3
72 Hz

Vb is the required net internal volume, Fb the tuning frequency of the reflex port and F3 the frequency at which the level has dropped by 3 dB. Calculated approximation after Small. A starting point for simulation, not a finished build plan.

Comparable drivers

Same size, same type, Qts within ±30 %.

Specifications

Allgemein
Manufacturer 18SOUND
Category Coaxial
Series CX
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 280
Sensitivity (dB) 95
Frequency from (Hz) 65
Frequency to (Hz) 6100
Abmessungen & Korb
Diameter 8
Voice coil (inch) 2
Mounting depth (mm) 150
Weight (kg) 4.4
Thiele-Small-Parameter
Re (Ω) 5
Le (mH) 0.96
Fs (Hz) 56
Qms 3.23
Qes 0.38
Qts 0.34
Vas (l) 23.9
Xmax (mm) 5.8
BL (Tm) 9.3
Mms (kg) 0.018
Sd (m²) 0.0227