Scan-Speak Revelator 32W/8878T01

Woofer

12″ / 320 mm
Nominal diameter
19 Hz
Resonance
0.33
Q factor
88 dB
Sensitivity
± 7.5 mm
Linear excursion
400 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
88.3
dB
Frequency response
19 - 1500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
19.0
Hz
Mechanical quality factor
QMS
5.69
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.33

Large signal parameters

Maximum linear excursion
xmax
7.5
mm
Maximum excursion before damage
xlim
28.0
mm
Air volume displaced at xmax
VD
395
cm³
Power handling
P
150
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz, estimated)
LE
1.53
mH
VC Diameter
75
mm
Winding height
HVC
23
mm
Former material
Titanium

Magnet

Force factor
Bl
15.6
N/A
Motor constant
Bl/√RE
6.32
N/√W
Air gap height
HAG
8
mm

Diaphragm

Effective diameter
260
mm
Effective area
SD
526
cm²
Moving mass
MMS
114.8
g
Moving mass (without air load)
MMD
106
g
Material
Paper sandwich

Suspensions

Stiffness
KMS
1.67
N/mm
Compliance
CMS
600
µm/N
Equivalent volume to the compliance
VAS
234
L
Mechanical resistance
RMS
2.4
N·s/m

Dimensions

Nominal diameter
12
320
mm
Volume occupied by the driver
2.65
L
Net weight
7.5
kg
Frame material
Die cast Aluminium
Scan-Speak 32W/8878T01 SPL & Impedance
Scan-Speak 32W/8878T01 Dimensions

Export this driver to a simulation software:

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Similar woofers to Scan-Speak 32W/8878T01

Peerless NE315W-08 Subwoofer
12Subwoofer
fS
21 Hz
SD
507 cm²
25 - 1000 Hz
QTS
0.38
xmax
12.0 mm
SPL1W
88 dB
Bl/√RE
6.1
Pmax
300 W