Product Details

Characteristics
Filter series
American Standard
Specifications
Nominal basket diameter
12", 305mm
Nominal impedance
8 Ω
Power rating program power
500 W
Power rating watts
250 W
Resonance
47 Hz
Usable frequency range
43 Hz - 3.8 kHz
Sensitivity
98 dB
Gap height
0.312", 7.9 mm
Voice coil diameter
2", 50 mm
Thiele & Small Parameters
Resonant frequency fs
47 Hz
Dc resistance re
5
Coil inductance le
0.64
Mechanical q qms
6
Electromagnetic q qes
0.5
Total q qts
0.46
Compliance equivalent volume vas
120.1 liters, 4.24 cu.ft.
Peak diaphragm displacement volume vd
237 cc
Mechanical compliance of suspension cms
0.29 mm/N
Bl product bl
10.8
Diaphragm mass inc airload mms
40
Efficiency bandwidth product ebp
94
Maximum linear excursion xmax
4.4 mm
Surface area of cone sd
538.9 cm²
Mounting Information
Recommended enclosure volume sealed
25.5-35.4 liters, 0.9-1.25 cu.ft.
Recommended enclosure volume vented
36.8-139 liters, 1.3-4.9 cu.ft.
Driver volume displaced
0.071 cu.ft. / 2 liters
Overall diameter
12.03", 305.6 mm
Baffle hole diameter
11.07", 281.2 mm
Front sealing gasket
Yes
Rear sealing gasket
Yes
Mounting holes diameter
0.25", 6.4mm
Mounting holes b c d
11.59", 294.4mm
Depth
5.5", 139.7 mm
Net weight
7.5 lbs, 3.4 kg
Shipping weight
9.7 lbs, 4.4 kgs
Materials of Construction
Coil construction
Edgewound copper
Voice coil former
Polyimide
Magnet material
Ferrite
Basket material
Pressed steel
Cone composition
Paper
Surround
Cloth
Dust cap composition
Paper