Scan-Speak Revelator 28W/4878T01
Woofer
12″ / 280 mm
Nominal diameter
23 Hz
Resonance
0.26
Q factor
88 dB
Sensitivity
± 7 mm
Linear excursion
500 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 88.4
- dB
- Frequency response
- 23 - 1000
- Hz
- Resonance frequency (free air)
- fS
- 23.0
- Hz
- Mechanical quality factor
- QMS
- 6.21
- Electrical quality factor
- QES
- 0.27
- Total quality factor
- QTS
- 0.26
- Maximum linear excursion
- xmax
- 7.0
- mm
- Maximum excursion before damage
- xlim
- 28.0
- mm
- Air volume displaced at xmax
- VD
- 254
- cm³
- Power handling
- P
- 200
- W
- Program power
- Pmax
- 500
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.1
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.65
- mH
- VC Diameter
- 75
- mm
- Winding height
- HVC
- 22
- mm
- Former material
- Titanium
- Force factor
- Bl
- 12.0
- N/A
- Motor constant
- Bl/√RE
- 6.82
- N/√W
- Air gap height
- HAG
- 8
- mm
- Effective diameter
- 215
- mm
- Effective area
- SD
- 363
- cm²
- Moving mass
- MMS
- 86
- g
- Moving mass (without air load)
- MMD
- 80.8
- g
- Material
- Paper sandwich
- Stiffness
- KMS
- 1.79
- N/mm
- Compliance
- CMS
- 560
- µm/N
- Equivalent volume to the compliance
- VAS
- 104
- L
- Mechanical resistance
- RMS
- 2.0
- N·s/m
- Nominal diameter
- 12
- ″
- 280
- mm
- Volume occupied by the driver
- 2.23
- L
- Net weight
- 7.5
- kg
- Frame material
- Die cast Aluminium
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.jpg.webp)
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