Jensen Mod 12-70

16Ω

Guitar Speaker

Nominal diameter12″ / 306 mm
Resonance83 Hz
Q factor1.04
Sensitivity95.4 dB
Linear excursion± 1.5 mm
Program Power140 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 95.4dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 83Hz
  • Mechanical quality factor QMS 7.84
  • Electrical quality factor QES 1.20
  • Total quality factor QTS 1.04

Large signal parameters

  • Maximum linear excursion xmax 1.5mm
  • Air volume displaced at xmax VD 74cm³
  • Power handling P 70W
  • Program power Pmax 140W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 12.0Ω
  • Inductance (1kHz) LE 1mH
  • VC Diameter 38mm
  • Winding material Copper
  • Former material Epotex

Magnet

  • Flux density B 1.16T
  • Force factor Bl 12.6N/A
  • Motor constant Bl/√RE 3.63N/√W
  • Weight 0.64kg
  • Material Ferrite

Diaphragm

  • Effective diameter 250mm
  • Effective area SD 491cm²
  • Moving mass MMS 30.3g
  • Moving mass (without air load) MMD 22.5g
  • Material Paper

Suspensions

  • Stiffness KMS 8N/mm
  • Compliance CMS 125µm/N
  • Equivalent volume to the compliance VAS 42.4L
  • Mechanical resistance RMS 2.02N·s/m
  • Surround material Integrated Paper

Dimensions

  • Nominal diameter 12
  • 306mm
  • Overall diameter 306mm
  • Volume occupied by the driver (estimated) 1L
  • Net weight 2.4kg
  • Frame material Pressed Sheet
Jensen Mod 12-70 Dimensions

Similar speaker drivers to Jensen Mod 12-70

Jensen Mod 12-70 Guitar Speaker

Jensen Mod 12-70

8 Ω
12 Guitar Speaker
fS78 Hz
SD491 cm²
QTS0.89
xmax1.5 mm
SPL1W95.4 dB
Bl/√RE3.7
Pmax140 W
Jensen C 12/70 SB Guitar Speaker

Jensen C 12/70 SB

8 Ω
12 Guitar Speaker
fS87 Hz
SD491 cm²
QTS1.03
SPL1W96 dB
Bl/√RE3.71
Pmax140 W