Jensen Vintage Ceramic C12K

Guitar Speaker

Nominal diameter12″ / 307 mm
Resonance115 Hz
Q factor0.82
Sensitivity96.9 dB
Linear excursion± 1 mm
Program Power200 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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 96.9dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 115Hz
  • Mechanical quality factor QMS 16.40
  • Electrical quality factor QES 0.86
  • Total quality factor QTS 0.82

Large signal parameters

  • Maximum linear excursion xmax 1mm
  • Air volume displaced at xmax VD 49cm³
  • Power handling P 100W
  • Program power Pmax 200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.8Ω
  • Inductance (1kHz) LE 0.84mH
  • VC Diameter 50mm
  • Winding height HVC 10mm
  • Winding material Copper
  • Former material Kapton

Magnet

  • Flux density B 1.1T
  • Force factor Bl 13.7N/A
  • Motor constant Bl/√RE 5.27N/√W
  • Air gap height HAG 8mm
  • Weight 1.45kg
  • Material Ferrite

Diaphragm

  • Effective diameter 250mm
  • Effective area SD 491cm²
  • Moving mass MMS 33.4g
  • Moving mass (without air load) MMD 25.5g
  • Material Paper

Suspensions

  • Stiffness KMS 17.5N/mm
  • Compliance CMS 57µm/N
  • Equivalent volume to the compliance VAS 19.6L
  • Mechanical resistance RMS 1.47N·s/m
  • Surround material Integrated Paper

Dimensions

  • Nominal diameter 12
  • 307mm
  • Overall diameter 307mm
  • Volume occupied by the driver (estimated) 1.8L
  • Net weight 4.3kg
  • Frame material Pressed Sheet
Jensen C12K SPL & Impedance
Jensen C12K Dimensions

Similar speaker drivers to Jensen C12K

Jensen C12K Guitar Speaker

Jensen C12K

16 Ω
12 Guitar Speaker
fS113 Hz
SD491 cm²
QTS0.86
xmax1 mm
SPL1W96.5 dB
Bl/√RE5.28
Pmax200 W
Jensen C12N Guitar Speaker

Jensen C12N

4 Ω
12 Guitar Speaker
fS113 Hz
SD491 cm²
QTS0.82
xmax1.5 mm
SPL1W96.9 dB
Bl/√RE4.6
Pmax100 W
Jensen C 12/50 FA Guitar Speaker

Jensen C 12/50 FA

8 Ω
12 Guitar Speaker
fS107 Hz
SD491 cm²
QTS0.86
xmax1 mm
SPL1W96.5 dB
Bl/√RE4.74
Pmax100 W