Impedance

Log Frequency - Hz. 27 A. 270mm Access® subwoofer. 10. 100. 1000. Mechanical Drawing. 250 W. 500 W. 90 dB. Fiber glass. NBR Rubber. 4 ohms. 2.9 ohms.
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27 A

270mm Access® subwoofer • Thick zamak diecast frame

Specifications

• Fiber glass cone, large NBR surround • 4 layer aluminium former voice coil • High power handling • Deep frequency in small vented box

Frequency Response / Impedance dB SPL

Ohms

110

55

100

50

90

45

80

40

70

35

60

250 W

Maximum power

500 W

Sensitivity

90 dB

Cone

Fiber glass

Surround

NBR Rubber

Nom. impedance

4 ohms

DC resistance

2.9 ohms

VC diameter

50 mm

2 in

VC height

20 mm

3/4 in

Former

Aluminium

Layers

4

Wire

Copper

Inductance

3.00 mH

Xmax

6 mm

Magnet d x h

120 x 25 mm

43/4 x 1 in

Magnet weight

87 g

1.93 lb

Flux density

0.8 T

Gap height

8 mm

Net weight

3.95 kg

8.7 lb

Parameters Fs

41.29 Hz

Vas

21.22 I

Qts

0.480

30

Qes

0.540

50

25

Qms

4.350

40

20

Re

2.9 ohms

30

15

Sd

330.06 cm2

20

10

Cas

1.51E-07 m5/N

10

5

Mas

98.33 kg/m4

Ras

5864.23 ohms.ac

Cms

1.39E-04 m/N

Mms

107.12 g

Rms

6.389 Kg/s

Ces

717.75 mF

Les

20.70 mH

Res

23.36 ohms

BI

12.22 N/A

SPL

86.2 dB/W/m

10

100

Log Frequency - Hz

Mechanical Drawing

©Focal-JMlab - SC020606/1

Nominal power

1000

0.75 Ft3

511/6 in2

0.23 lb

Suggested application Load

V (I)

Fb (Hz)

F-3 (Hz)

Ql

Vented

30

Vented

40

37

35

7

35

32

7

Focal ® is a trademark of Focal-JMlab ® ZI Molina la Chazotte - 108, rue de l'Avenir - BP 74 - 42003 Saint-Etienne cedex 1 - France - Tel. +33 4 77 43 57 00 - Fax +33 4 77 37 65 87 - www.focal-jmlab.fr