Focal 6 K 4311 B
6-1/2" Polykevlar woofer-midrange
US $138.42
Qty

Features

- Thick zamak alloy metal cast frame
- Straight profile Polykevlar cone, large rubber surround
- Edgewound flat copper wire 32mm voice coil, black Kapton former
- Effieciency: 90dB, 10 ohms impedance
- Excellent for small 15 to 20l vented 2-way systems and for dual drivers applications


Specifications

- Nominal power - 90w
- Maximum power - 125w
- Sensitivity - 89.27 dB
- Cone - Kevlar
- Surround - rubber
- Nom. impedance - 8 ohms
- DC resistance - 8.07 ohms
- VC diameter - 32mm / 4.96in
- VC height - 16mm / 0.63in
- Former - Kapton
- Layers - 2
- Wire - Copper
- Inductance - 0.7 mH
- Xmax - 5mm / 0.20in
- Magnet d x h - 1000mm x 18mm / 39.37in x 0.70in
- Magnet weight - 564g / 1.24lb
- Flux density - 1.1T
- Gap height - 6mm / 0.24in
- Net weight - 2.2kg / 4.85lb

Parameters 
- Fs - 57.6 Hz
- Vas - 17.5 I / 1067.9 in3
- Qts - 0.44
- Qes - 0.46
- Qms - 8.47
- Re - 8.07 ohms
- Sd - 136.8 Cm2 / 21.2 in2
- Cas - 125E-09 m5/N
- Mas - 61.4 kg/m4
- Ras - 2620.7 ohms.ac
- Cms - 0665E-6 m/N
- Mms - 11.49 g / 0.025 Ib
- Rms - 0.49 g/s
- Ces - 157.6 mF
- Les - 48.5 mH
- Res - 148.6 ohms
- BI - 8.54 N/A
- SPL - 90.5 dB/W/m

Suggested application
 
Load V (l) Fb (Hz) F-3 (Hz) QI
Vented 16 57.1 58.2 7
         
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