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18SOUND 15NLW9500

18SOUND 15NLW9500

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18SOUND (Eighteen Sound) 15NLW9500 — 15" / 15 inch · Woofer · Subwoofer / Bass · Neodymium
4" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0048

514.00 € 514.0 EUR 514.00 €

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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 15NLW9500 — 15" · Woofer

1000 W AES · 96 dB Sensitivity · Frequency range 42 Hz – 2000 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4 "
  • Power handling: 1000 W AES
  • Sensitivity: 96 dB
  • Impedance: 8 Ω
  • Magnet: Neo
  • Weight: 7 kg
  • Mounting depth: 177 mm
  • Frequency range: 42 – 2000 Hz

Datasheet (PDF) · Manufacturer page

Series: NLW · Part no.: 42A-CHS-TT-18S-0048

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs35 Hz
Total Q Qts0.32
Electrical Q Qes0.34
Mechanical Q Qms6.7
Equivalent volume Vas163.0 l
Moving mass Mms146.0 g
Cone area Sd850 cm²
Linear excursion Xmax9 mm
Force factor BL21.6 Tm
DC resistance Re4.9 Ω
Voice coil inductance Le0.8 mH

Enclosure suggestion

The EBP of 103 suggests a bass-reflex enclosure. EBP = fs / Qes = 35 / 0.34

Sealed (Qtc 0.707)

Enclosure volume Vb
42.0 l
System resonance Fc
77 Hz
Cut-off frequency F3
77 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
75.9 l
Tuning frequency Fb
44 Hz
Cut-off frequency F3
49 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) 1000
Sensitivity (dB) 96
Frequency from (Hz) 42
Frequency to (Hz) 2000
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4
Mounting depth (mm) 177
Weight (kg) 7
Thiele-Small-Parameter
Re (Ω) 4.9
Le (mH) 0.8
Fs (Hz) 35
Qms 6.7
Qes 0.34
Qts 0.32
Vas (l) 163
Xmax (mm) 9
BL (Tm) 21.6
Mms (kg) 0.146
Sd (m²) 0.085