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18SOUND 15W930

18SOUND 15W930

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18SOUND (Eighteen Sound) 15W930 — 15" / 15 inch · Woofer/Midrange (WM) · Subwoofer / Bass · Ferrite
3" voice coil · 8 Ω
Part no.: 42A-CHS-TT-18S-0017

293.00 € 293.0 EUR 293.00 €

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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 15W930 — 15" · Woofer

500 W AES · 98 dB Sensitivity · Frequency range 50 Hz – 3600 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 3 "
  • Power handling: 500 W AES
  • Sensitivity: 98 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 8 kg
  • Mounting depth: 185 mm
  • Frequency range: 50 – 3600 Hz

Datasheet (PDF) · Manufacturer page

Series: W · Part no.: 42A-CHS-TT-18S-0017

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs33 Hz
Total Q Qts0.22
Electrical Q Qes0.23
Mechanical Q Qms8.78
Equivalent volume Vas240.0 l
Moving mass Mms97.0 g
Cone area Sd850 cm²
Linear excursion Xmax7.5 mm
Force factor BL22.1 Tm
DC resistance Re5.5 Ω
Voice coil inductance Le1.47 mH

Enclosure suggestion

The EBP of 143 suggests a bass-reflex enclosure. EBP = fs / Qes = 33 / 0.23

Sealed (Qtc 0.707)

Enclosure volume Vb
25.7 l
System resonance Fc
106 Hz
Cut-off frequency F3
106 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
32.5 l
Tuning frequency Fb
61 Hz
Cut-off frequency F3
80 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 W
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 500
Sensitivity (dB) 98
Frequency from (Hz) 50
Frequency to (Hz) 3600
Abmessungen & Korb
Diameter 15
Voice coil (inch) 3
Mounting depth (mm) 185
Weight (kg) 8
Thiele-Small-Parameter
Re (Ω) 5.5
Le (mH) 1.47
Fs (Hz) 33
Qms 8.78
Qes 0.23
Qts 0.22
Vas (l) 240
Xmax (mm) 7.5
BL (Tm) 22.1
Mms (kg) 0.097
Sd (m²) 0.085