5 K 4211 - DIY-loudspeakers.com

Surround. Nom. impedance. DC resistance. VC diameter. VC height. Former. Layers. Wire. Inductance ... 25mm diameter voice coil, Nomex® former, phase plug.
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5 K 4211 5-1/4’’ Polykevlar® woofer-midrange Thick zamak alloy metal cast frame Semi exponential Polykevlar® cone, rubber surround ! 25mm diameter voice coil, Nomex® former, phase plug ! Efficiency: 89.3dB ! A classic, high resolution midrange, robust and efficient midbass !

Specifications

!

Frequency Response / Impedance dB SPL

50 W

Maximum power

70 W

Sensitivity

88.63 dB

Cone

Kevlar®

Surround

rubber

Nom. impedance

6 ohms

DC resistance

6.61 ohms

VC diameter

25 mm

3.88 in

VC height

12.4 mm

0.49 in

Former

Nomex®

Layers

2

Wire

copper

Inductance

0.51 mH

Xmax

3.2 mm

0.13 in

Magnet d x h

100 x 18 mm

3.93 x 0.70 in

Magnet weight

564 g

1.24 Ib

Flux density

1.2 T

Gap height

6 mm

0.24 in

Net weight

1.5 kg

3.31 Ib

Ohms

100

110

95

100

90

90

85

80

Parameters Fs

56.4 Hz

Vas

11.5 I

Qts

0.32

Qes

0.37

50

Qms

2.49

65

40

Re

6.61 ohms

60

30

Sd

86.6 Cm2

55

20

Cas

816E-10 m5/N

50

10

Mas

97.6 kg/m4

Ras

13 894.2 ohms.ac

Cms

1088E-6 m/N

Mms

7.32 g

Rms

1.04 g/s

Ces

158 mF

Les

50.4 mH

Res

44.5 ohms

BI

6.81 N/A

SPL

89.3 dB/W/m

80

70

75

60

70

20

100

1000

Log Frequency - Hz

Mechanical Drawing

©Focal-JMlab - SC01070403

Nominal power

10 000

701.8 in3

13.4 in2

0.016 Ib

Suggested application Load Vented

V (I)

Fb (Hz)

F-3 (Hz)

QI

10

66.2

63.1

7

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