Oberton 8MB201

Name: 8MB201
Brand: Oberton

Mid-range

8″ / 203 mm

Nominal diameter

68 Hz

Resonance

0.31

Q factor

93 dB

Sensitivity

± 7 mm

Linear excursion

400 W

Program Power

Sensitivity (1W, 1m, infinite baffle)
SPL_1W: 93.0; dB
Frequency response: 65 - 3000; Hz
Resonance frequency (free air)
f_S: 67.7; Hz
Mechanical quality factor
Q_MS: 6.24
Electrical quality factor
Q_ES: 0.33
Total quality factor
Q_TS: 0.31
Maximum linear excursion
x_max: 7.0; mm
Air volume displaced at x_max
V_D: 140; cm³
Power handling
P: 200; W
Program power
P_max: 400; W
Nominal impedance
Z: 8; Ω
DC resistance
R_E: 5.8; Ω
Inductance (1kHz)
L_E: 0.8; mH
VC Diameter: 51; mm
Winding height
H_VC: 17.5; mm
Winding material: Aluminium
Former material: Kapton
Flux density
B: 1.35; T
Force factor
Bl: 12.54; N/A
Motor constant
Bl/√R_E: 5.21; N/√W
Air gap height
H_AG: 7; mm
Material: Ferrite
Effective diameter: 160; mm
Effective area
S_D: 200; cm²
Moving mass
M_MS: 21; g
Moving mass (without air load)
M_MD: 18.7; g
Material: Paper with glassfiber
Stiffness
K_MS: 3.79; N/mm
Compliance
C_MS: 264; µm/N
Equivalent volume to the compliance
V_AS: 14.7; L
Mechanical resistance
R_MS: 1.43; N·s/m
Nominal diameter: 8; ″
: 203; mm
Overall diameter: 225; mm
Baffle cutout diameter: 187; mm
Overall depth: 90; mm
Volume occupied by the driver (estimated): 1.1; L
Net weight: 3.22; kg
Frame material: Die cast aluminium

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Oberton 8MB201

Mid-range

Thiele & Small parameters

Large signal parameters

Voice Coil

Magnet

Diaphragm

Suspensions

Dimensions

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