Jensen Blackbird P 12/40 BB
8Ω
16Ω
Guitar Speaker
Nominal diameter | 12″ / 307 mm |
Resonance | 90.1 Hz |
Q factor | 1.63 |
Sensitivity | 97.1 dB |
Program Power | 80 W |
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- Sensitivity (1W, 1m, infinite baffle) SPL1W 97.1dB
Thiele & Small parameters
- Resonance frequency (free air) fS 90.1Hz
- Mechanical quality factor QMS 13.97
- Electrical quality factor QES 1.85
- Total quality factor QTS 1.63
Large signal parameters
- Power handling P 40W
- Program power Pmax 80W
Voice Coil
- Nominal impedance Z 16Ω
- DC resistance RE 12.0Ω
- Inductance (1kHz) LE 0.72mH
- VC Diameter 32mm
- Winding height HVC 9mm
- Winding material Copper
- Former material Kapton
Magnet
- Flux density B 1.28T
- Force factor Bl 10.1N/A
- Motor constant Bl/√RE 2.9N/√W
- Air gap height HAG 6mm
- Weight 0.3kg
- Material Reinforced Alnico
Diaphragm
- Effective diameter 250mm
- Effective area SD 491cm²
- Moving mass MMS 27.4g
- Moving mass (without air load) MMD 19.5g
- Material Paper
Suspensions
- Stiffness KMS 8.77N/mm
- Compliance CMS 114µm/N
- Equivalent volume to the compliance VAS 39L
- Mechanical resistance RMS 1.11N·s/m
- Surround material Integrated Paper
Dimensions
- Nominal diameter 12″
- 307mm
- Overall diameter 307mm
- Volume occupied by the driver (estimated) 0.82L
- Net weight 2.0kg
- Frame material Pressed Sheet
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