Radian 5215B

Coaxial

15″ / 380 mm
Nominal diameter
40 Hz
Resonance
0.26
Q factor
97 dB
Sensitivity
± 5.5 mm
Linear excursion
1250 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
97.1
dB
Frequency response
40 - 18000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
3.28
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
5.5
mm
Air volume displaced at xmax
VD
484
cm³
Power handling
P
625
W
Program power
Pmax
1250
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
1.3
mH
VC Diameter
102
mm
Winding height
HVC
16.5
mm
Winding material
Copper Clad aluminum
Former material
Fiberglass

Magnet

Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
8.69
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
335
mm
Effective area
SD
880
cm²
Moving mass
MMS
88
g
Moving mass (without air load)
MMD
70
g
Material
Paper/Kevlar composite

Suspensions

Stiffness
KMS
5.44
N/mm
Compliance
CMS
184
µm/N
Equivalent volume to the compliance
VAS
202
L
Mechanical resistance
RMS
6.74
N·s/m

Dimensions

Nominal diameter
15
380
mm
Overall diameter
388
mm
Baffle cutout diameter
356
mm
Overall depth
209
mm
Flange thickness
16
mm
Mounting depth
193
mm
Volume occupied by the driver (estimated)
6.7
L
Net weight
14.0
kg
Frame material
Cast Aluminum
Radian 5215B SPL & Impedance
Radian 5215B Dimensions

Export this driver to a simulation software:

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