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18SOUND 12NCX910N

18SOUND 12NCX910N

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18SOUND (Eighteen Sound) 12NCX910N — 12" / 12 inch Coaxial Driver · Coax / Coaxial Driver · Neodymium · NSD-Dome
3"/3" voice coils · 8 Ω
Part no.: 42A-CHS-KO-18S-0007

649.00 € 649.0 EUR 649.00 €

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  • Manufacturer
  • Category
  • Series
  • 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 12NCX910N — 12" · Coaxial Driver

450 W AES · 99.5 dB Sensitivity · Frequency range 60 Hz – 4000 Hz

Technical data

  • Diameter: 12 "
  • Voice coil: 3 "
  • Power handling: 450 W AES
  • Sensitivity: 99.5 dB
  • Impedance: 8 Ω
  • Weight: 6 kg
  • Mounting depth: 210 mm
  • Frequency range: 60 – 4000 Hz
  • Cone material: Titanium
  • Coverage angle: 80 °
  • Rec. crossover: 1.5 kHz

Datasheet (PDF) · Manufacturer page

Series: NCX · Part no.: 42A-CHS-KO-18S-0007

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs57 Hz
Total Q Qts0.3
Electrical Q Qes0.31
Mechanical Q Qms10
Equivalent volume Vas58.0 l
Moving mass Mms53.0 g
Cone area Sd531 cm²
Linear excursion Xmax6.9 mm
Force factor BL18.1 Tm
DC resistance Re5.3 Ω
Voice coil inductance Le0.78 mH

Enclosure suggestion

The EBP of 184 suggests a bass-reflex enclosure. EBP = fs / Qes = 57 / 0.31

Sealed (Qtc 0.707)

Enclosure volume Vb
12.7 l
System resonance Fc
134 Hz
Cut-off frequency F3
134 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
21.8 l
Tuning frequency Fb
77 Hz
Cut-off frequency F3
88 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 Coaxial
Series NCX
Impedance (Ω) 8
Power handling (W) 450
Sensitivity (dB) 99.5
Frequency from (Hz) 60
Frequency to (Hz) 4000
Abmessungen & Korb
Diameter 12
Voice coil (inch) 3
Mounting depth (mm) 210
Weight (kg) 6
Thiele-Small-Parameter
Re (Ω) 5.3
Le (mH) 0.78
Fs (Hz) 57
Qms 10
Qes 0.31
Qts 0.3
Vas (l) 58
Xmax (mm) 6.9
BL (Tm) 18.1
Mms (kg) 0.053
Sd (m²) 0.0531