Eminence DELTA PRO-12A
Woofer
12″ / 305 mm
Nominal diameter
51 Hz
Resonance
0.35
Q factor
96 dB
Sensitivity
± 4.6 mm
Linear excursion
800 W
Program Power
- Amazon.com
- $$$
- Parts Express
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.8
- dB
- Frequency response
- 52 - 4500
- Hz
- Resonance frequency (free air)
- fS
- 51.0
- Hz
- Mechanical quality factor
- QMS
- 7.56
- Electrical quality factor
- QES
- 0.37
- Total quality factor
- QTS
- 0.35
- Maximum linear excursion
- xmax
- 4.6
- mm
- Maximum excursion before damage
- xlim
- 13.7
- mm
- Air volume displaced at xmax
- VD
- 245
- cm³
- Power handling
- P
- 400
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.7
- Ω
- Inductance (1kHz)
- LE
- 0.84
- mH
- VC Diameter
- 64
- mm
- Winding material
- Aluminum
- Former material
- Polyimide
- Force factor
- Bl
- 15.3
- N/A
- Motor constant
- Bl/√RE
- 6.4
- N/√W
- Air gap height
- HAG
- 9.5
- mm
- Weight
- 2.268
- kg
- Material
- Ferrite
- Effective diameter
- 260
- mm
- Effective area
- SD
- 532
- cm²
- Moving mass
- MMS
- 48
- g
- Moving mass (without air load)
- MMD
- 39.2
- g
- Material
- Paper
- Stiffness
- KMS
- 4.76
- N/mm
- Compliance
- CMS
- 210
- µm/N
- Equivalent volume to the compliance
- VAS
- 81.7
- L
- Mechanical resistance
- RMS
- 2.03
- N·s/m
- Surround material
- Cloth
- Nominal diameter
- 12
- ″
- 305
- mm
- Overall diameter
- 315
- mm
- Baffle cutout diameter
- 281
- mm
- Overall depth
- 158
- mm
- Volume occupied by the driver
- 2.55
- L
- Net weight
- 7.39
- kg
- Frame material
- Die-cast aluminum