6.5″ / 165 mm
Nominal diameter
45 Hz
Resonance
0.24
Q factor
89 dB
Sensitivity
± 5.5 mm
Linear excursion
100 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
88.9
dB
Frequency response
45 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
7.12
Electrical quality factor
QES
0.25
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
5.5
mm
Air volume displaced at xmax
VD
77
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.6
Ω
Inductance (1kHz)
LE
0.32
mH
VC Diameter
76
mm
Magnet
Force factor
Bl
13.71
N/A
Motor constant
Bl/√RE
5.34
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
134
mm
Effective area
SD
140
cm²
Moving mass
MMS
25
g
Moving mass (without air load)
MMD
23.7
g
Material
Black color Polypropylene-Mica
Suspensions
Stiffness
KMS
2.09
N/mm
Compliance
CMS
480
µm/N
Equivalent volume to the compliance
VAS
13.4
L
Mechanical resistance
RMS
0.99
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
2.5
kg
Similar woofers to Tang Band W6-1559S
5.5″Mid Bass
fS
43 Hz
SD
80 cm²
QTS
0.21
xmax
4.3 mm
SPL1W
88 dB
Bl/√RE
3.41
Pmax
120 W
6.5″Mid Bass
fS
46 Hz
SD
133 cm²
QTS
0.25
xmax
7.2 mm
SPL1W
90 dB
Bl/√RE
4.39
Pmax
100 W
5″Woofer
fS
37 Hz
SD
95 cm²
37 - 4500 Hz
QTS
0.21
xmax
6.0 mm
SPL1W
88 dB
Bl/√RE
3.44
Pmax
300 W