Scan-Speak Discovery 18W/4434G00
Mid Bass
8″ / 180 mm
Nominal diameter
47 Hz
Resonance
0.35
Q factor
90 dB
Sensitivity
± 4.3 mm
Linear excursion
170 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 89.5
- dB
- Frequency response
- 47 - 8000
- Hz
- Resonance frequency (free air)
- fS
- 47.0
- Hz
- Mechanical quality factor
- QMS
- 7.81
- Electrical quality factor
- QES
- 0.37
- Total quality factor
- QTS
- 0.35
- Maximum linear excursion
- xmax
- 4.3
- mm
- Maximum excursion before damage
- xlim
- 8.0
- mm
- Air volume displaced at xmax
- VD
- 59
- cm³
- Power handling
- P
- 55
- W
- Program power
- Pmax
- 170
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.0
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.21
- mH
- VC Diameter
- 32
- mm
- Winding height
- HVC
- 13.6
- mm
- Force factor
- Bl
- 6.0
- N/A
- Motor constant
- Bl/√RE
- 3.46
- N/√W
- Air gap height
- HAG
- 5
- mm
- Effective diameter
- 132
- mm
- Effective area
- SD
- 137
- cm²
- Moving mass
- MMS
- 14.4
- g
- Moving mass (without air load)
- MMD
- 13.2
- g
- Material
- Coated Fibre Glass
- Stiffness
- KMS
- 1.27
- N/mm
- Compliance
- CMS
- 790
- µm/N
- Equivalent volume to the compliance
- VAS
- 20.7
- L
- Mechanical resistance
- RMS
- 0.55
- N·s/m
- Surround material
- SBR Rubber
- Nominal diameter
- 8
- ″
- 180
- mm
- Volume occupied by the driver
- 0.3
- L
- Net weight
- 1.3
- 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:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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