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18SOUND 10NMB420

18SOUND 10NMB420

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18SOUND (Eighteen Sound) 10NMB420 — 10" / 10 inch · Midrange with Lower Midrange (ML) · Midrange · Neodymium
2.5" voice coil · 8/16 Ω
Part no.: 42A-CHS-MT-18S-0018

260.00 € 260.0 EUR 260.00 €

Price on request

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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 10NMB420 — 10" · Midrange Driver

350 W AES · 99 dB Sensitivity · Frequency range 65 Hz – 5000 Hz

Technical data

  • Diameter: 10 "
  • Voice coil: 2.5 "
  • Power handling: 350 W AES
  • Sensitivity: 99 dB
  • Impedance: 16 Ω
  • Magnet: Neo
  • Weight: 3 kg
  • Mounting depth: 122 mm
  • Frequency range: 65 – 5000 Hz

Datasheet (PDF) · Manufacturer page

Series: NMB · Part no.: 42A-CHS-MT-18S-0018

Thiele-Small parameters

Nominal impedance16 Ω
Resonance frequency fs65 Hz
Total Q Qts0.33
Electrical Q Qes0.36
Mechanical Q Qms4.6
Equivalent volume Vas30.0 l
Moving mass Mms31.5 g
Cone area Sd346 cm²
Linear excursion Xmax4 mm
Force factor BL19.5 Tm
DC resistance Re10.5 Ω
Voice coil inductance Le0.4 mH

Enclosure suggestion

The EBP of 181 suggests a bass-reflex enclosure. EBP = fs / Qes = 65 / 0.36

Sealed (Qtc 0.707)

Enclosure volume Vb
8.4 l
System resonance Fc
139 Hz
Cut-off frequency F3
139 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
15.5 l
Tuning frequency Fb
80 Hz
Cut-off frequency F3
87 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 Mid Frequency
Series NMB
Magnet Neo
Impedance (Ω) 16
Power handling (W) 350
Sensitivity (dB) 99
Frequency from (Hz) 65
Frequency to (Hz) 5000
Abmessungen & Korb
Diameter 10
Voice coil (inch) 2.5
Mounting depth (mm) 122
Weight (kg) 3
Thiele-Small-Parameter
Re (Ω) 10.5
Le (mH) 0.4
Fs (Hz) 65
Qms 4.6
Qes 0.36
Qts 0.33
Vas (l) 30
Xmax (mm) 4
BL (Tm) 19.5
Mms (kg) 0.0315
Sd (m²) 0.0346