Recommended for professional audio as a mid-bass in either vented, or sealed satellite or floor monitor enclosures. Also works nicely in vented two-way enclosures used for small coverage areas.
 
SPECIFICATION
Nominal Basket Diameter
12", 305 mm
Nominal Impedance*
8 Ω
Power Rating*
Program Power
500 W
Watts
250 W
Resonance
47 Hz
Usable Frequency Range
57 Hz - 4.6 kHz
Sensitivity*
97.3 dB
Magnet Weight
38 oz.
Gap Height
0.312", 7.9 mm
Voice Coil Diameter
2", 51 mm
THIELE & SMALL PARAMETERS
Resonant Frequency (fs)
47 Hz
DC Resistance (Re)
5.42 Ω
Coil Inductance (Le)
0.64m H
Mechanical Q (Qms)
5.64
Electromagnetic Q (Qes)
0.52
Total Q (Qts)
0.48
Compliance Equivalent Volume (Vas)
120.94 liters / 4.27 cu.ft.
Peak Diaphragm Displacement Volume (Vd)
188.6 cc
Mechanical Compliance of Suspension (Cms)
0.3 mm/N
BL Product (BL)
10.79 T-M
Diaphragm Mass Inc. Airload (MMs)
38 grams
Efficiency Bandwidth Product (EBP)
90
Maximum Linear Excursion (Xmax)
3.5 mm
Surface Area of Cone (Sd)
538.9 cm2
Maximum Mechanical Limit (Xlim)
10.4 mm
MOUNTING INFORMATION
Recommended Enclosure Volume
Sealed
26.9-70.79 liters / 0.95-2.5 cu.ft.
Vented
32.85-158.58 liters / 1.16-5.6 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
4.47", 113.5 mm
Net Weight
7.8 lbs, 3.54 kg
Shipping Weight
10 lbs, 4.54 kgs
MATERIALS OF CONSTRUCTION
Coil Construction
Copper voice coil
Coil Former
Kapton former
Magnet Composition
Ferrite magnet
Core Details
Tapered Coax
 
 
Basket Materials
Pressed steel basket
Cone Composition
Paper cone
Cone Edge Composition
Cloth cone edge
Dust Cap Composition
Screened cloth dust cap