Focal K2 POWER ES 165 K2S
Woofer
6.5″ / 165 mm
Nominal diameter
60 Hz
Resonance
0.58
Q factor
87 dB
Sensitivity
140 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.9
- dB
- Frequency response
- 60 - 2000
- Hz
- Resonance frequency (free air)
- fS
- 60.0
- Hz
- Mechanical quality factor
- QMS
- 8.00
- Electrical quality factor
- QES
- 0.62
- Total quality factor
- QTS
- 0.58
- Power handling
- P
- 70
- W
- Program power
- Pmax
- 140
- W
- Nominal impedance
- Z
- 2
- Ω
- DC resistance
- RE
- 2.0
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.15
- mH
- VC Diameter
- 33
- mm
- Force factor
- Bl
- 4.5
- N/A
- Motor constant
- Bl/√RE
- 3.18
- N/√W
- Effective diameter
- 128
- mm
- Effective area
- SD
- 129
- cm²
- Moving mass
- MMS
- 17
- g
- Moving mass (without air load)
- MMD
- 15.9
- g
- Material
- K2 Sandwich
- Stiffness
- KMS
- 2.33
- N/mm
- Compliance
- CMS
- 430
- µm/N
- Equivalent volume to the compliance
- VAS
- 10
- L
- Mechanical resistance
- RMS
- 0.8
- N·s/m
- Surround material
- Butyl
- Nominal diameter
- 6.5
- ″
- 165
- mm
- Overall diameter
- 165
- mm
- Baffle cutout diameter
- 142
- mm
- Mounting depth
- 58
- mm
- Volume occupied by the driver (estimated)
- 0.27
- L
- Net weight
- 0.7
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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