MONACOR SP-46A/500BS

Subwoofer

Nominal diameter18″ / 470 mm
Resonance36 Hz
Q factor0.48
Sensitivity94 dB
Linear excursion± 6 mm
Program Power1000 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 94dB
  • Frequency response 36 - 1800Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 36Hz
  • Mechanical quality factor QMS 4.75
  • Electrical quality factor QES 0.54
  • Total quality factor QTS 0.48

Large signal parameters

  • Maximum linear excursion (one way) xmax 6mm
  • Air volume displaced at xmax VD 698cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.0Ω
  • Inductance (1kHz) LE 1.65mH
  • VC Diameter 100mm
  • Winding material Kapton

Magnet

  • Force factor Bl 17.5N/A
  • Motor constant Bl/√RE 7.14N/√W
  • Diameter 238mm
  • Weight 2.6kg

Diaphragm

  • Effective diameter 385mm
  • Effective area SD 1163cm²
  • Moving mass MMS 141g
  • Moving mass (without air load) MMD 112g

Suspensions

  • Stiffness KMS 7.69N/mm
  • Compliance CMS 130µm/N
  • Equivalent volume to the compliance VAS 250L
  • Mechanical resistance RMS 6.71N·s/m

Dimensions

  • Nominal diameter 18
  • 470mm
  • Overall diameter 470mm
  • Baffle cutout diameter 420mm
  • Overall depth 205mm
  • Flange thickness 16mm
  • Mounting depth 189mm
  • Volume occupied by the driver (estimated) 6.6L
  • Net weight 11.34kg
MONACOR SP-46A/500BS SPL & Impedance
MONACOR SP-46A/500BS Dimensions

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