10″ / 254 mm
Nominal diameter
57 Hz
Resonance
0.29
Q factor
95 dB
Sensitivity
± 4 mm
Linear excursion
500 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.7
dB
Frequency response
55 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
57.2
Hz
Mechanical quality factor
QMS
2.82
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
139
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
0.49
mH
VC Diameter
64
mm
Winding height
HVC
16
mm
Winding material
Copper clad aluminium
Former material
Glass fibre
Magnet
Force factor
Bl
15.83
N/A
Motor constant
Bl/√RE
6.51
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
37.9
g
Moving mass (without air load)
MMD
33.2
g
Material
Kevlar loaded paper
Suspensions
Stiffness
KMS
5.0
N/mm
Compliance
CMS
200
µm/N
Equivalent volume to the compliance
VAS
34.7
L
Mechanical resistance
RMS
4.82
N·s/m
Surround material
Cloth-sealed
Dimensions
Nominal diameter
10
″
254
mm
Overall diameter
260
mm
Baffle cutout diameter
232
mm
Overall depth
113
mm
Volume occupied by the driver (estimated)
1.1
L
Net weight
2.2
kg
Frame material
Cast aluminium
Similar speaker drivers to Celestion NTR10-2520D
8″Woofer
fS
59 Hz
SD
227 cm²
60 - 5500 Hz
QTS
0.31
xmax
5.8 mm
SPL1W
94 dB
Bl/√RE
4.34
Pmax
400 W
10″Low frequency
fS
55 Hz
SD
346 cm²
60 - 5000 Hz
QTS
0.27
xmax
4.3 mm
SPL1W
95 dB
Bl/√RE
6.53
Pmax
600 W
10″Woofer
fS
58 Hz
SD
346 cm²
60 - 5000 Hz
QTS
0.27
xmax
4.4 mm
SPL1W
95 dB
Bl/√RE
6.88
Pmax
700 W