Ciare NDH15-4S

Subwoofer

15″ / 380 mm
Nominal diameter
28 Hz
Resonance
0.25
Q factor
54 dB
Sensitivity
± 11.5 mm
Linear excursion
2000 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
54.3
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
11.19
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25

Large signal parameters

Maximum linear excursion
xmax
11.5
mm
Air volume displaced at xmax
VD
9.2
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
1.07
mH
VC Diameter
100
mm
Winding height
HVC
30
mm

Magnet

Force factor
Bl
24.19
N/A
Motor constant
Bl/√RE
9.84
N/√W
Air gap height
HAG
14
mm

Diaphragm

Effective diameter
32
mm
Effective area
SD
8.0
cm²
Moving mass
MMS
143
g
Moving mass (without air load)
MMD
143
g
Material
Treated Cellulose

Suspensions

Stiffness
KMS
4.35
N/mm
Compliance
CMS
230
µm/N
Equivalent volume to the compliance
VAS
220
L
Mechanical resistance
RMS
2.25
N·s/m
Surround material
Doped fabric
Spider material
Nomex Fabric

Dimensions

Nominal diameter
15
380
mm
Overall diameter
388
mm
Baffle cutout diameter
354
mm
Overall depth
189
mm
Flange thickness
14
mm
Mounting depth
175
mm
Volume occupied by the driver (estimated)
4.4
L
Net weight
8.0
kg
Frame material
Diecast Aluminium
Ciare NDH15-4S SPL & Impedance
Ciare NDH15-4S Dimensions

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