8″ / 200 mm
Nominal diameter
29 Hz
Resonance
0.3
Q factor
86 dB
Sensitivity
± 8 mm
Linear excursion
200 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
85.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
29.3
Hz
Mechanical quality factor
QMS
5.51
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Air volume displaced at xmax
VD
171
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
2.0
mH
VC Diameter
38
mm
Winding height
HVC
24
mm
Magnet
Force factor
Bl
11.16
N/A
Motor constant
Bl/√RE
5.8
N/√W
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
59
g
Moving mass (without air load)
MMD
56.6
g
Suspensions
Stiffness
KMS
2.0
N/mm
Compliance
CMS
500
µm/N
Equivalent volume to the compliance
VAS
32
L
Mechanical resistance
RMS
1.97
N·s/m
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
213
mm
Baffle cutout diameter
185
mm
Overall depth
118
mm
Flange thickness
8
mm
Mounting depth
110
mm
Volume occupied by the driver (estimated)
1.3
L
Net weight
3.4
kg
Similar subwoofers to Reckhorn D-200
10″Subwoofer
fS
26 Hz
SD
342 cm²
20 - 1000 Hz
QTS
0.27
xmax
15.0 mm
SPL1W
85 dB
Bl/√RE
9.46
Pmax
500 W
8″Woofer
fS
30 Hz
SD
214 cm²
30 - 500 Hz
QTS
0.29
xmax
6.5 mm
SPL1W
87 dB
Bl/√RE
5.37
Pmax
300 W
8″Subwoofer
fS
28 Hz
SD
243 cm²
QTS
0.35
xmax
11.5 mm
SPL1W
85 dB
Bl/√RE
5.22
Pmax
1000 W