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18SOUND 15NLW9401

18SOUND 15NLW9401

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18SOUND (Eighteen Sound) 15NLW9401 — 15" / 15 inch · Woofer · Subwoofer / Bass · Neodymium
4" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0049

399.00 € 399.0 EUR 399.00 €

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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 15NLW9401 — 15" · Woofer

1200 W AES · 97.5 dB Sensitivity · Frequency range 37 Hz – 2300 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4 "
  • Power handling: 1200 W AES
  • Sensitivity: 97.5 dB
  • Impedance: 8 Ω
  • Magnet: Neo
  • Weight: 7.5 kg
  • Mounting depth: 180 mm
  • Frequency range: 37 – 2300 Hz

Datasheet (PDF) · Manufacturer page

Series: NLW · Part no.: 42A-CHS-TT-18S-0049

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs39 Hz
Total Q Qts0.26
Electrical Q Qes0.28
Mechanical Q Qms4.13
Equivalent volume Vas134.0 l
Moving mass Mms140.0 g
Cone area Sd850 cm²
Linear excursion Xmax10 mm
Force factor BL25.4 Tm
DC resistance Re5.2 Ω
Voice coil inductance Le1.9 mH

Enclosure suggestion

The EBP of 139 suggests a bass-reflex enclosure. EBP = fs / Qes = 39 / 0.28

Sealed (Qtc 0.707)

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

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
31.4 l
Tuning frequency Fb
61 Hz
Cut-off frequency F3
74 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 NLW
Magnet Neo
Impedance (Ω) 8
Power handling (W) 1200
Sensitivity (dB) 97.5
Frequency from (Hz) 37
Frequency to (Hz) 2300
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4
Mounting depth (mm) 180
Weight (kg) 7.5
Thiele-Small-Parameter
Re (Ω) 5.2
Le (mH) 1.9
Fs (Hz) 39
Qms 4.13
Qes 0.28
Qts 0.26
Vas (l) 134
Xmax (mm) 10
BL (Tm) 25.4
Mms (kg) 0.14
Sd (m²) 0.085