VISATON FR 12 - 4 Ohm

Name: FR 12 - 4 Ohm
Brand: VISATON

4Ω

8Ω

Full-range

5″ / 130 mm

Nominal diameter

110 Hz

Resonance

1.87

Q factor

90 dB

Sensitivity

± 0.8 mm

Linear excursion

40 W

Program Power

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

90.1

Frequency response

70 - 18000

Thiele & Small parameters

Resonance frequency (free air)

f_S

110

Mechanical quality factor

Q_MS

5.61

Electrical quality factor

Q_ES

2.80

Total quality factor

Q_TS

1.87

Large signal parameters

Maximum linear excursion

x_max

0.8

Maximum excursion before damage

x_lim

2.5

Air volume displaced at x_max

V_D

7.0

cm³

Power handling

Program power

P_max

Voice Coil

Nominal impedance

DC resistance

R_E

3.4

Inductance (1kHz)

L_E

0.1

VC Diameter

Winding height

H_VC

4.5

Magnet

Flux density

0.8

Force factor

1.7

N/A

Motor constant

Bl/√R_E

0.922

N/√W

Air gap height

H_AG

Diaphragm

Effective diameter

105

Effective area

S_D

cm²

Moving mass

M_MS

3.8

Moving mass (without air load)

M_MD

3.2

Suspensions

Stiffness

K_MS

1.24

N/mm

Compliance

C_MS

810

µm/N

Equivalent volume to the compliance

V_AS

8.7

Mechanical resistance

R_MS

0.47

N·s/m

Dimensions

Nominal diameter

″

130

Baffle cutout diameter

114

Volume occupied by the driver (estimated)

0.1

Net weight

0.284

Datasheet

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S_D

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