Skar Audio EVL-65 D4

2x4Ω

Subwoofer

6.5″ / 174 mm

Nominal diameter

64 Hz

Resonance

0.53

Q factor

82 dB

Sensitivity

± 6.25 mm

Linear excursion

400 W

Program Power

Skar Audio EVL-65 D4 Subwoofer

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 81.9; dB
Resonance frequency (free air)
f_S: 64.0; Hz
Mechanical quality factor
Q_MS: 4.60
Electrical quality factor
Q_ES: 0.60
Total quality factor
Q_TS: 0.53
Maximum linear excursion
x_max: 6.25; mm
Air volume displaced at x_max
V_D: 71; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 2 x 4; Ω
DC resistance (in series)
R_E: 7.0; Ω
Inductance (1kHz, in series, estimated)
L_E: 1.05; mH
VC Diameter: 51; mm
Winding material: Copper
Force factor (in series)
Bl: 15.4; N/A
Motor constant
Bl/√R_E: 5.82; N/√W
Diameter: 133; mm
Effective diameter: 120; mm
Effective area
S_D: 113; cm²
Moving mass
M_MS: 50.2; g
Moving mass (without air load)
M_MD: 49.2; g
Material: Pressed Paper
Stiffness
K_MS: 8.26; N/mm
Compliance
C_MS: 121; µm/N
Equivalent volume to the compliance
V_AS: 2.2; L
Mechanical resistance
R_MS: 4.39; N·s/m
Surround material: Rubber
Nominal diameter: 6.5; ″
: 174; mm
Overall diameter: 174; mm
Baffle cutout diameter: 152; mm
Overall depth: 104; mm
Flange thickness: 15; mm
Mounting depth: 89; mm
Volume occupied by the driver (estimated): 0.72; L

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