Pride UFO.5 18

Name: UFO.5 18
Brand: Pride

Subwoofer

18″ / 457 mm

Nominal diameter

20 Hz

Resonance

0.14

Q factor

88 dB

Sensitivity

± 42.5 mm

Linear excursion

20000 W

Program Power

Discontinued

Sensitivity (1w, 1m, infinite baffle)

SPL_1W

88.4

Thiele & Small parameters

Resonance frequency (free air)

f_S

19.8

Mechanical quality factor

Q_MS

1.07

Electrical quality factor

Q_ES

0.16

Total quality factor

Q_TS

0.14

Large signal parameters

Maximum linear excursion

x_max

42.5

Air volume displaced at x_max

V_D

5801

cm³

Power handling

10000

Program power

P_max

20000

Voice Coil

Nominal impedance

DC resistance

R_E

1.5

Inductance (1kHz, estimated)

L_E

1.54

Magnet

Force factor

36.1

N/A

Motor constant

Bl/√R_E

29.3

N/√W

Diaphragm

Effective diameter

417

Effective area

S_D

1365

cm²

Moving mass

M_MS

1110.6

Moving mass (without air load)

M_MD

1077.9

Suspensions

Stiffness

K_MS

17.24

N/mm

Compliance

C_MS

µm/N

Equivalent volume to the compliance

V_AS

153

Mechanical resistance

R_MS

129.32

N·s/m

Dimensions

Nominal diameter

″

457

Volume occupied by the driver (estimated)

6.9

Datasheet

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