Fountek FW322 4ohm

Name: FW322 4ohm
Brand: Fountek

4Ω

8Ω

Subwoofer

12″ / 322 mm

Nominal diameter

42 Hz

Resonance

0.36

Q factor

90 dB

Sensitivity

± 10 mm

Linear excursion

600 W

Program Power

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

90.0

Frequency response

40 - 900

Thiele & Small parameters

Resonance frequency (free air)

f_S

41.8

Mechanical quality factor

Q_MS

2.21

Electrical quality factor

Q_ES

0.43

Total quality factor

Q_TS

0.36

Large signal parameters

Maximum linear excursion

x_max

10.0

Air volume displaced at x_max

V_D

515

cm³

Power handling

300

Program power

P_max

600

Voice Coil

Nominal impedance

DC resistance

R_E

3.4

Inductance (1kHz, estimated)

L_E

0.93

VC Diameter

Winding height

H_VC

Winding material

Copper

Magnet

Flux density

1.0

Force factor

17.0

N/A

Motor constant

Bl/√R_E

9.22

N/√W

Air gap height

H_AG

Material

Ferrite

Diaphragm

Effective diameter

256

Effective area

S_D

515

cm²

Moving mass

M_MS

133.8

Moving mass (without air load)

M_MD

125.3

Suspensions

Stiffness

K_MS

9.26

N/mm

Compliance

C_MS

108

µm/N

Equivalent volume to the compliance

V_AS

40.6

Mechanical resistance

R_MS

15.88

N·s/m

Dimensions

Nominal diameter

″

322

Overall diameter

317

Overall depth

152

Volume occupied by the driver (estimated)

3.2

Net weight

7.4

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