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18SOUND 18LW2400

18SOUND 18LW2400

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18SOUND (Eighteen Sound) 18LW2400 — 18" / 18 inch · Woofer · Subwoofer / Bass · Ferrite Magnet
4" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0007

365.00 € 365.0 EUR 365.00 €

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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 18LW2400 — 18" · Woofer

1200 W AES · 98 dB Sensitivity · Frequency range 31 Hz – 2500 Hz

Technical data

  • Diameter: 18 "
  • Voice coil: 4 "
  • Power handling: 1200 W AES
  • Sensitivity: 98 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 12.75 kg
  • Mounting depth: 214 mm
  • Frequency range: 31 – 2500 Hz

Datasheet (PDF) · Manufacturer page

Series: LW · Part no.: 42A-CHS-TT-18S-0007

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs35 Hz
Total Q Qts0.31
Electrical Q Qes0.32
Mechanical Q Qms7.2
Equivalent volume Vas230.0 l
Moving mass Mms192.0 g
Cone area Sd1.225 cm²
Linear excursion Xmax9.5 mm
Force factor BL25.6 Tm
DC resistance Re5 Ω
Voice coil inductance Le1.35 mH

Enclosure suggestion

The EBP of 109 suggests a bass-reflex enclosure. EBP = fs / Qes = 35 / 0.32

Sealed (Qtc 0.707)

Enclosure volume Vb
54.7 l
System resonance Fc
80 Hz
Cut-off frequency F3
80 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
96.4 l
Tuning frequency Fb
46 Hz
Cut-off frequency F3
51 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 Low Frequency
Series LW
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 1200
Sensitivity (dB) 98
Frequency from (Hz) 31
Frequency to (Hz) 2500
Abmessungen & Korb
Diameter 18
Voice coil (inch) 4
Mounting depth (mm) 214
Weight (kg) 12.75
Thiele-Small-Parameter
Re (Ω) 5
Le (mH) 1.35
Fs (Hz) 35
Qms 7.2
Qes 0.32
Qts 0.31
Vas (l) 230
Xmax (mm) 9.5
BL (Tm) 25.6
Mms (kg) 0.192
Sd (m²) 0.1225