Eighteen Sound 15NTLS3500

Name: 15NTLS3500
Brand: Eighteen Sound

Subwoofer

15″ / 393 mm

Nominal diameter

28 Hz

Resonance

0.42

Q factor

90 dB

Sensitivity

± 15.3 mm

Linear excursion

1900 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 89.7; dB
Frequency response: 30 - 2000; Hz
Resonance frequency (free air)
f_S: 28.0; Hz
Mechanical quality factor
Q_MS: 8.20
Electrical quality factor
Q_ES: 0.44
Total quality factor
Q_TS: 0.42
Maximum linear excursion
x_max: 15.3; mm
Air volume displaced at x_max
V_D: 1348; cm³
Power handling
P: 950; W
Program power
P_max: 1900; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.2; Ω
Inductance (1kHz)
L_E: 1.65; mH
VC Diameter: 88; mm
Winding height
H_VC: 36; mm
Winding material: Copper
Force factor
Bl: 21.6; N/A
Motor constant
Bl/√R_E: 9.47; N/√W
Air gap height
H_AG: 11; mm
Material: Neodymium
Effective diameter: 335; mm
Effective area
S_D: 881; cm²
Moving mass
M_MS: 250; g
Moving mass (without air load)
M_MD: 231.8; g
Material: Weather protected
Stiffness
K_MS: 6.94; N/mm
Compliance
C_MS: 144; µm/N
Equivalent volume to the compliance
V_AS: 141; L
Mechanical resistance
R_MS: 5.36; N·s/m
Surround material: Rubber
Nominal diameter: 15; ″
: 393; mm
Overall diameter: 393; mm
Baffle cutout diameter: 357; mm
Overall depth: 261; mm
Flange thickness: 17; mm
Mounting depth: 244; mm
Volume occupied by the driver (estimated): 5.6; L
Net weight: 8.3; kg

Datasheet

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Eighteen Sound 15NTLS3500

Subwoofer

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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