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18SOUND 15MB700

18SOUND 15MB700

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18SOUND (Eighteen Sound) 15MB700 — 15" / 15 inch · Midrange with Lower Midrange (ML) · Midrange · Ferrite
3" voice coil · 8 Ω
Part no.: 42A-CHS-MT-18S-0002

239.00 € 239.0 EUR 239.00 €

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 15MB700 — 15" · Midrange Driver

400 W AES · 103 dB Sensitivity · Frequency range 45 Hz – 4300 Hz

Technical data

  • Diameter: 15 "
  • Voice coil: 3 "
  • Power handling: 400 W AES
  • Sensitivity: 103 dB
  • Impedance: 8 Ω
  • Magnet: Ferrite
  • Weight: 8.3 kg
  • Mounting depth: 167 mm
  • Frequency range: 45 – 4300 Hz

Datasheet (PDF) · Manufacturer page

Series: MB · Part no.: 42A-CHS-MT-18S-0002

Thiele-Small parameters

Nominal impedance8 Ω
Resonance frequency fs42 Hz
Total Q Qts0.29
Electrical Q Qes0.31
Mechanical Q Qms4.6
Equivalent volume Vas202.0 l
Moving mass Mms73.0 g
Cone area Sd850 cm²
Linear excursion Xmax5.5 mm
Force factor BL17.6 Tm
DC resistance Re5 Ω
Voice coil inductance Le1.2 mH

Enclosure suggestion

The EBP of 135 suggests a bass-reflex enclosure. EBP = fs / Qes = 42 / 0.31

Sealed (Qtc 0.707)

Enclosure volume Vb
40.9 l
System resonance Fc
102 Hz
Cut-off frequency F3
102 Hz

Bass reflex (QB3 after Small)recommended

Enclosure volume Vb
68.0 l
Tuning frequency Fb
59 Hz
Cut-off frequency F3
68 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 MB
Magnet Ferrite
Impedance (Ω) 8
Power handling (W) 400
Sensitivity (dB) 103
Frequency from (Hz) 45
Frequency to (Hz) 4300
Abmessungen & Korb
Diameter 15
Voice coil (inch) 3
Mounting depth (mm) 167
Weight (kg) 8.3
Thiele-Small-Parameter
Re (Ω) 5
Le (mH) 1.2
Fs (Hz) 42
Qms 4.6
Qes 0.31
Qts 0.29
Vas (l) 202
Xmax (mm) 5.5
BL (Tm) 17.6
Mms (kg) 0.073
Sd (m²) 0.085