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18SOUND 12LW1400

18SOUND 12LW1400

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18SOUND (Eighteen Sound) 12LW1400 — 12" / 12 inch · Woofer · Bass · Ferrite Magnet
4" voice coil · 8 Ω
Part no.: 42A-CHS-TT-18S-0023

344.01 € 344.01 EUR 344.01 €

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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 12LW1400 — 12" · Woofer

900 W AES · 96 dB Sensitivity · Frequency range 51 Hz – 4000 Hz

Technical data

  • Diameter: 12 "
  • Voice coil: 4 "
  • Power handling: 900 W AES
  • Sensitivity: 96 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 10.9 kg
  • Mounting depth: 141 mm
  • Frequency range: 51 – 4000 Hz

Datasheet (PDF) · Manufacturer page

Series: LW · Part no.: 42A-CHS-TT-18S-0023

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs45 Hz
Total Q Qts0.3
Electrical Q Qes0.32
Mechanical Q Qms5
Equivalent volume Vas55.0 l
Moving mass Mms88.0 g
Cone area Sd531 cm²
Linear excursion Xmax8.25 mm
Force factor BL20 Tm
DC resistance Re5.2 Ω
Voice coil inductance Le1.5 mH

Enclosure suggestion

The EBP of 141 suggests a bass-reflex enclosure. EBP = fs / Qes = 45 / 0.32

Sealed (Qtc 0.707)

Enclosure volume Vb
12.1 l
System resonance Fc
106 Hz
Cut-off frequency F3
106 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
20.7 l
Tuning frequency Fb
61 Hz
Cut-off frequency F3
69 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) 900
Sensitivity (dB) 96
Frequency from (Hz) 51
Frequency to (Hz) 4000
Abmessungen & Korb
Diameter 12
Voice coil (inch) 4
Mounting depth (mm) 141
Weight (kg) 10.9
Thiele-Small-Parameter
Re (Ω) 5.2
Le (mH) 1.5
Fs (Hz) 45
Qms 5
Qes 0.32
Qts 0.3
Vas (l) 55
Xmax (mm) 8.25
BL (Tm) 20
Mms (kg) 0.088
Sd (m²) 0.0531