4″ / 116 mm
Nominal diameter
54 Hz
Resonance
0.35
Q factor
83 dB
Sensitivity
± 4 mm
Linear excursion
80 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
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
82.8
dB
Frequency response
55 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
53.8
Hz
Mechanical quality factor
QMS
3.14
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
20
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.97
mH
VC Diameter
25
mm
Winding material
Copper Clad Aluminium
Magnet
Force factor
Bl
5.2
N/A
Motor constant
Bl/√RE
2.91
N/√W
Diaphragm
Effective diameter
80
mm
Effective area
SD
50
cm²
Moving mass
MMS
9.9
g
Moving mass (without air load)
MMD
9.6
g
Suspensions
Stiffness
KMS
1.14
N/mm
Compliance
CMS
880
µm/N
Equivalent volume to the compliance
VAS
3.1
L
Mechanical resistance
RMS
1.07
N·s/m
Dimensions
Nominal diameter
4
″
116
mm
Overall diameter
116
mm
Baffle cutout diameter
93
mm
Overall depth
65
mm
Volume occupied by the driver (estimated)
0.22
L
Similar woofers to Dayton Audio TCP115-4
4.5″
fS
58 Hz
SD
49 cm²
58 - 1200 Hz
QTS
0.39
xmax
4.0 mm
SPL1W
84 dB
Bl/√RE
2.63
Pmax
80 W
4.5″Subwoofer
fS
46 Hz
SD
54 cm²
48 - 3000 Hz
QTS
0.33
xmax
6.0 mm
SPL1W
81 dB
Bl/√RE
3.3
4″Woofer
fS
55 Hz
SD
54 cm²
60 - 8000 Hz
QTS
0.38
xmax
4.1 mm
SPL1W
84 dB
Bl/√RE
2.44
Pmax
70 W