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18SOUND 15NLW4500

18SOUND 15NLW4500

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18SOUND (Eighteen Sound) 15NLW4500 — 15" / 15 inch · High-Performance Woofer · Subwoofer / Bass · Neodymium
4.5" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0047

595.00 € 595.0 EUR 595.00 €

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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 15NLW4500 — 15" · Woofer

1500 W AES · 96.3 dB Sensitivity · Frequency range 40 Hz – 1000 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 4.53 "
  • Power handling: 1500 W AES
  • Sensitivity: 96.3 dB
  • Impedance: 8 Ω
  • Magnet: Neo
  • Weight: 11.4 kg
  • Mounting depth: 199 mm
  • Frequency range: 40 – 1000 Hz

Datasheet (PDF) · Manufacturer page

Series: NLW · Part no.: 42A-CHS-TT-18S-0047

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs35 Hz
Total Q Qts0.26
Electrical Q Qes0.27
Mechanical Q Qms7.8
Equivalent volume Vas111.0 l
Moving mass Mms201.0 g
Cone area Sd881 cm²
Linear excursion Xmax14.5 mm
Force factor BL29.7 Tm
DC resistance Re5.4 Ω
Voice coil inductance Le1.62 mH

Enclosure suggestion

The EBP of 130 suggests a bass-reflex enclosure. EBP = fs / Qes = 35 / 0.27

Sealed (Qtc 0.707)

Enclosure volume Vb
17.4 l
System resonance Fc
95 Hz
Cut-off frequency F3
95 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
26.0 l
Tuning frequency Fb
55 Hz
Cut-off frequency F3
66 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) 1500
Sensitivity (dB) 96.3
Frequency from (Hz) 40
Frequency to (Hz) 1000
Abmessungen & Korb
Diameter 15
Voice coil (inch) 4.53
Mounting depth (mm) 199
Weight (kg) 11.4
Thiele-Small-Parameter
Re (Ω) 5.4
Le (mH) 1.62
Fs (Hz) 35
Qms 7.8
Qes 0.27
Qts 0.26
Vas (l) 111
Xmax (mm) 14.5
BL (Tm) 29.7
Mms (kg) 0.201
Sd (m²) 0.0881