Goldwood GW-205/4S

Name: Goldwood GW-205/4S
Brand: Goldwood

4Ω

8Ω

Woofer

5.25″ / 152 mm

Nominal diameter

83 Hz

Resonance

0.68

Q factor

87 dB

Sensitivity

± 1.5 mm

Linear excursion

130 W

Program Power

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Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 87.2; dB
Frequency response: 62 - 1200; Hz
Resonance frequency (free air)
f_S: 83.1; Hz
Mechanical quality factor
Q_MS: 3.18
Electrical quality factor
Q_ES: 0.87
Total quality factor
Q_TS: 0.68
Maximum linear excursion
x_max: 1.5; mm
Air volume displaced at x_max
V_D: 15; cm³
Power handling
P: 70; W
Program power
P_max: 130; W
Nominal impedance
Z: 4; Ω
DC resistance
R_E: 3.6; Ω
Inductance (1kHz)
L_E: 0.2; mH
VC Diameter: 25; mm
Winding material: Aluminum
Force factor
Bl: 4.44; N/A
Motor constant
Bl/√R_E: 2.34; N/√W
Weight: 0.454; kg
Effective diameter: 111; mm
Effective area
S_D: 97; cm²
Moving mass
M_MS: 9.1; g
Moving mass (without air load)
M_MD: 8.4; g
Material: Poly
Stiffness
K_MS: 2.5; N/mm
Compliance
C_MS: 400; µm/N
Equivalent volume to the compliance
V_AS: 5.3; L
Mechanical resistance
R_MS: 1.49; N·s/m
Surround material: Rolled Foam
Nominal diameter: 5.25; ″
: 152; mm
Overall diameter: 152; mm
Baffle cutout diameter: 127; mm
Mounting depth: 76; mm
Volume occupied by the driver (estimated): 0.55; L
Net weight: 1.361; kg
Frame material: Stamped Steel

Datasheet

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Goldwood GW-205/4S

Woofer

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Specifications

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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