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18SOUND 18NTLW5000

18SOUND 18NTLW5000

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18SOUND (Eighteen Sound) 18NTLW5000 — 18" / 18 inch · Super-Performance Woofer · Subwoofer / Bass · Neodymium · Dual-Gap
2x4.5" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0036

695.00 € 695.0 EUR 695.00 €

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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 18NTLW5000 — 18" · Woofer

1800 W AES · 95 dB Sensitivity · Frequency range 30 Hz – 1800 Hz

Technical data

  • Diameter: 18 "
  • Voice coil: 4.5 "
  • Power handling: 1800 W AES
  • Sensitivity: 95 dB
  • Impedance: 8 Ω
  • Magnet: Neo
  • Weight: 12 kg
  • Mounting depth: 310 mm
  • Frequency range: 30 – 1800 Hz

Datasheet (PDF) · Manufacturer page

Series: NTLW · Part no.: 42A-CHS-TT-18S-0036

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs32 Hz
Total Q Qts0.32
Electrical Q Qes0.33
Mechanical Q Qms8.52
Equivalent volume Vas176.0 l
Moving mass Mms295.0 g
Cone area Sd1.225 cm²
Linear excursion Xmax17.5 mm
Force factor BL31.3 Tm
DC resistance Re5.5 Ω
Voice coil inductance Le1.85 mH

Enclosure suggestion

The EBP of 97 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 32 / 0.33

Sealed (Qtc 0.707)

Enclosure volume Vb
45.3 l
System resonance Fc
71 Hz
Cut-off frequency F3
71 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
81.9 l
Tuning frequency Fb
41 Hz
Cut-off frequency F3
45 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 NTLW
Magnet Neo
Impedance (Ω) 8
Power handling (W) 1800
Sensitivity (dB) 95
Frequency from (Hz) 30
Frequency to (Hz) 1800
Abmessungen & Korb
Diameter 18
Voice coil (inch) 4.5
Mounting depth (mm) 310
Weight (kg) 12
Thiele-Small-Parameter
Re (Ω) 5.5
Le (mH) 1.85
Fs (Hz) 32
Qms 8.52
Qes 0.33
Qts 0.32
Vas (l) 176
Xmax (mm) 17.5
BL (Tm) 31.3
Mms (kg) 0.295
Sd (m²) 0.1225