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LAB12
SPECIFICATION
Nominal Basket Diameter 12", 304.8mm
Nominal Impedance* 6 ohms
Power Rating
Watts 400W
Music Program 800W
Resonance 22Hz
Usable Frequency Range 25Hz-125Hz
Sensitivity*** 89.2
Magnet Weight 160 oz.
Gap Height 0.375", 9.53mm
Voice Coil Diameter 2.5", 63.5mm

THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 22Hz
DC Resistance (Re) 4.29
Coil Inductance (Le) 1.48mH
Mechanical Q (Qms) 13.32
Electromagnetic Q (Qes) 0.39
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 125.2 liters / 4.4 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 659cc
Mechanical Compliance of Suspension (Cms) 0.35mm/N
BL Product (BL) 15.0 T-M
Diaphram Mass inc. Airload (Mms) 146 grams
Efficiency Bandwidth Product (EBP) 56
Maximum Linear Excursion (Xmax) 13.0mm
Surface Area of Cone (Sd) 506.7 cm2
Maximum Mechanical Limit (Xlim) 22mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed 22.7-28.3 liters/ 0.8-1 cu.ft.
Vented 45.3-101.9 liters/1.6-3.6 cu.ft.
Overall Diameter 12.32", 312.8mm
Baffle Hole Diameter 10.98", 278.9mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.26", 6.6mm
Mounting Holes B.C. D. 11.77", 299mm
Depth 6.44", 164mm
Net Weight 22 lbs., 10 kg
Shipping Weight 23.8 lbs., 10.8 kg

MATERIALS OF CONSTRUCTION
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Double stacked 80 oz. ferrite magnets
Core Details Vented and extended core
Basket Materials 12-spoke die-cast aluminum basket
Cone Composition Kevlar-reinforced paper cone
Cone Edge Composition Foam cone edge
Dustcap Composition Dual inverted dust caps