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18SOUND 12NTLX3500

18SOUND 12NTLX3500

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18SOUND (Eighteen Sound) 12NTLX3500 — 12" / 12 inch · Hi-Fi/Studio Woofer · Bass · Neodymium · Dual-Gap
2x3.5" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0068

393.00 € 393.0 EUR 393.00 €

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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 12NTLX3500 — 12" · Woofer

600 W AES · 95.5 dB Sensitivity · Frequency range 40 Hz – 4000 Hz

Technical data

  • Diameter: 12 "
  • Voice coil: 3.46 "
  • Power handling: 600 W AES
  • Sensitivity: 95.5 dB
  • Impedance: 8 Ω
  • Magnet: Neo
  • Weight: 4.6 kg
  • Mounting depth: 194 mm
  • Frequency range: 40 – 4000 Hz

Datasheet (PDF) · Manufacturer page

Series: NTLX · Part no.: 42A-CHS-TT-18S-0068

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs39 Hz
Total Q Qts0.33
Electrical Q Qes0.35
Mechanical Q Qms6.2
Equivalent volume Vas79.6 l
Moving mass Mms86.0 g
Cone area Sd531 cm²
Linear excursion Xmax7.9 mm
Force factor BL17.1 Tm
DC resistance Re5 Ω
Voice coil inductance Le0.52 mH

Enclosure suggestion

The EBP of 111 suggests a bass-reflex enclosure. EBP = fs / Qes = 39 / 0.35

Sealed (Qtc 0.707)

Enclosure volume Vb
22.2 l
System resonance Fc
84 Hz
Cut-off frequency F3
84 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
41.0 l
Tuning frequency Fb
48 Hz
Cut-off frequency F3
52 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 NTLX
Magnet Neo
Impedance (Ω) 8
Power handling (W) 600
Sensitivity (dB) 95.5
Frequency from (Hz) 40
Frequency to (Hz) 4000
Abmessungen & Korb
Diameter 12
Voice coil (inch) 3.46
Mounting depth (mm) 194
Weight (kg) 4.6
Thiele-Small-Parameter
Re (Ω) 5
Le (mH) 0.52
Fs (Hz) 39
Qms 6.2
Qes 0.35
Qts 0.33
Vas (l) 79.6
Xmax (mm) 7.9
BL (Tm) 17.1
Mms (kg) 0.086
Sd (m²) 0.0531