Eminence LEGEND CB158

Bass Guitar Speaker

Nominal diameter15″ / 381 mm
Resonance34 Hz
Q factor0.34
Sensitivity99.1 dB
Linear excursion± 4.8 mm
Program Power600 W
Discontinued
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 99.1dB
  • Frequency response 47 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 34Hz
  • Mechanical quality factor QMS 5.90
  • Electrical quality factor QES 0.36
  • Total quality factor QTS 0.34

Large signal parameters

  • Maximum linear excursion (one way) xmax 4.8mm
  • Maximum excursion before damage xlim 9.5mm
  • Air volume displaced at xmax VD 411cm³
  • Power handling P 300W
  • Program power Pmax 600W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.2Ω
  • Inductance (1kHz) LE 0.33mH
  • VC Diameter 64mm
  • Winding material Copper
  • Former material Polyimide

Magnet

  • Force factor Bl 16N/A
  • Motor constant Bl/√RE 6.45N/√W
  • Air gap height HAG 9.5mm
  • Weight 2.268kg
  • Material Ferrite

Diaphragm

  • Effective diameter 330mm
  • Effective area SD 856cm²
  • Moving mass MMS 70g
  • Moving mass (without air load) MMD 52.6g
  • Material Paper

Suspensions

  • Stiffness KMS 3.23N/mm
  • Compliance CMS 310µm/N
  • Equivalent volume to the compliance VAS 336L
  • Mechanical resistance RMS 2.53N·s/m
  • Surround material Cloth

Dimensions

  • Nominal diameter 15
  • 381mm
  • Overall diameter 387mm
  • Baffle cutout diameter 355mm
  • Overall depth 165mm
  • Volume occupied by the driver 3.92L
  • Net weight 7.85kg
  • Frame material Die-cast aluminum
Eminence LEGEND CB158 SPL & Impedance

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