RCF CX15N351

Coaxial

15″ / 381 mm
Nominal diameter
55 Hz
Resonance
0.26
Q factor
99 dB
Sensitivity
± 6 mm
Linear excursion
900 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
99.0
dB
Frequency response
40 - 20000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Maximum excursion before damage
xlim
19.5
mm
Air volume displaced at xmax
VD
540
cm³
Power handling
P
450
W
Program power
Pmax
900
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
1.65
mH
VC Diameter
89
mm
Winding height
HVC
17
mm
Winding material
Copper

Magnet

Force factor
Bl
23.5
N/A
Motor constant
Bl/√RE
9.93
N/√W
Air gap height
HAG
11
mm

Diaphragm

Effective diameter
330
mm
Effective area
SD
900
cm²
Moving mass
MMS
80
g
Moving mass (without air load)
MMD
61.4
g

Suspensions

Stiffness
KMS
9.17
N/mm
Compliance
CMS
109
µm/N
Equivalent volume to the compliance
VAS
110
L
Mechanical resistance
RMS
4.61
N·s/m
Spider material
with silicon damping

Dimensions

Nominal diameter
15
381
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
254
mm
Volume occupied by the driver
3.8
L
Net weight
7.0
kg
RCF CX15N351 Impedance
RCF CX15N351 SPL
RCF CX15N351 Dimensions

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