MONACOR SP-304PA
4Ω
8ΩWoofer
12″ / 305 mm
Nominal diameter
40 Hz
Resonance
0.52
Q factor
91 dB
Sensitivity
± 3.25 mm
Linear excursion
350 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 91.1
- dB
- Frequency response
- 40 - 4000
- Hz
- Resonance frequency (free air)
- fS
- 40.0
- Hz
- Mechanical quality factor
- QMS
- 3.87
- Electrical quality factor
- QES
- 0.60
- Total quality factor
- QTS
- 0.52
- Maximum linear excursion
- xmax
- 3.25
- mm
- Air volume displaced at xmax
- VD
- 167
- cm³
- Power handling
- P
- 175
- W
- Program power
- Pmax
- 350
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.6
- Ω
- Inductance (1kHz)
- LE
- 0.4
- mH
- VC Diameter
- 39
- mm
- Winding material
- Aluminium
- Force factor
- Bl
- 9.39
- N/A
- Motor constant
- Bl/√RE
- 4.95
- N/√W
- Diameter
- 125
- mm
- Weight
- 0.85
- kg
- Effective diameter
- 256
- mm
- Effective area
- SD
- 514
- cm²
- Moving mass
- MMS
- 63
- g
- Moving mass (without air load)
- MMD
- 54.8
- g
- Stiffness
- KMS
- 3.33
- N/mm
- Compliance
- CMS
- 300
- µm/N
- Equivalent volume to the compliance
- VAS
- 117
- L
- Mechanical resistance
- RMS
- 4.09
- N·s/m
- Nominal diameter
- 12
- ″
- 305
- mm
- Overall diameter
- 305
- mm
- Baffle cutout diameter
- 280
- mm
- Overall depth
- 130
- mm
- Flange thickness
- 0
- mm
- Mounting depth
- 130
- mm
- Volume occupied by the driver (estimated)
- 1.6
- L
- Net weight
- 3.0
- kg