ESX SX840
Subwoofer
8″ / 200 mm
Nominal diameter
35 Hz
Resonance
0.38
Q factor
86 dB
Sensitivity
± 3.5 mm
Linear excursion
600 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.0
- dB
- Resonance frequency (free air)
- fS
- 35.0
- Hz
- Mechanical quality factor
- QMS
- 4.90
- Electrical quality factor
- QES
- 0.41
- Total quality factor
- QTS
- 0.38
- Maximum linear excursion
- xmax
- 3.5
- mm
- Maximum excursion before damage
- xlim
- 13.0
- mm
- Air volume displaced at xmax
- VD
- 75
- cm³
- Power handling
- P
- 300
- W
- Program power
- Pmax
- 600
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.2
- Ω
- Inductance (1kHz)
- LE
- 1.1
- mH
- VC Diameter
- 50
- mm
- Winding height
- HVC
- 15
- mm
- Former material
- Aluminium
- Force factor
- Bl
- 9.5
- N/A
- Motor constant
- Bl/√RE
- 5.31
- N/√W
- Diameter
- 110
- mm
- Height
- 40
- mm
- Weight
- 1.361
- kg
- Effective diameter
- 165
- mm
- Effective area
- SD
- 214
- cm²
- Moving mass
- MMS
- 53
- g
- Moving mass (without air load)
- MMD
- 50.6
- g
- Material
- Non-pressed Paper
- Stiffness
- KMS
- 2.6
- N/mm
- Compliance
- CMS
- 385
- µm/N
- Equivalent volume to the compliance
- VAS
- 25
- L
- Mechanical resistance
- RMS
- 2.38
- N·s/m
- Surround material
- Rubber
- Spider material
- Single Nomex
- Nominal diameter
- 8
- ″
- 200
- mm
- Overall diameter
- 218
- mm
- Baffle cutout diameter
- 189
- mm
- Mounting depth
- 114
- mm
- Volume occupied by the driver (estimated)
- 2.1
- L
- Net weight
- 4.9
- kg
- Frame material
- Diecast Aluminium