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18SOUND 15W750

18SOUND 15W750

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18SOUND (Eighteen Sound) 15W750 — 15" / 15 inch · Woofer/Midrange (WM) · Subwoofer / Bass · Ferrite
3" voice coil · 4/8 Ω
Part no.: 42A-CHS-TT-18S-0018

265.00 € 265.0 EUR 265.00 €

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 15W750 — 15" · Woofer

600 W AES · 97 dB Sensitivity · Frequency range 50 Hz – 4300 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 3 "
  • Power handling: 600 W AES
  • Sensitivity: 97 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 7.9 kg
  • Mounting depth: 184 mm
  • Frequency range: 50 – 4300 Hz

Datasheet (PDF) · Manufacturer page

Series: W · Part no.: 42A-CHS-TT-18S-0018

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs39 Hz
Total Q Qts0.37
Electrical Q Qes0.39
Mechanical Q Qms9.34
Equivalent volume Vas218.0 l
Moving mass Mms88.0 g
Cone area Sd850 cm²
Linear excursion Xmax8 mm
Force factor BL17.6 Tm
DC resistance Re5.1 Ω
Voice coil inductance Le1.1 mH

Enclosure suggestion

The EBP of 100 is in the intermediate range — either works; sealed plays tighter, bass reflex deeper and louder. EBP = fs / Qes = 39 / 0.39

Sealed (Qtc 0.707)

Enclosure volume Vb
82.2 l
System resonance Fc
75 Hz
Cut-off frequency F3
75 Hz

Bass reflex (QB3 after Small)

Enclosure volume Vb
163.9 l
Tuning frequency Fb
43 Hz
Cut-off frequency F3
44 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) 600
Sensitivity (dB) 97
Frequency from (Hz) 50
Frequency to (Hz) 4300
Abmessungen & Korb
Diameter 15
Voice coil (inch) 3
Mounting depth (mm) 184
Weight (kg) 7.9
Thiele-Small-Parameter
Re (Ω) 5.1
Le (mH) 1.1
Fs (Hz) 39
Qms 9.34
Qes 0.39
Qts 0.37
Vas (l) 218
Xmax (mm) 8
BL (Tm) 17.6
Mms (kg) 0.088
Sd (m²) 0.085