Rated at 250 W. For use in 2-way or compact 3-way systems, the 1225 bass and mid range driver has a high sensitivity and excellent power handling characteristics.
Product MeasurementsDiameter: 12 in.
Voice Coil Diameter: 2.5 in.
Magnet Weight: 42 oz.
Nominal Diameter: 12 in.
Power Rating: 250 Wrms
Nominal Impedance: 8 Ω
Sensitivity: 97 dB
Frequency Range: 50 Hz - 4,000 Hz
Chassis Type: Pressed steel
Magnet Type: Ferrite
Coil Material: Round copper
Former Material: Polyimide
Cone Material: Kevlar-loaded paper
Surround Material: Cloth-sealed
Suspension: Single
Maximum Linear Displacement (XMAX): 2.5 mm
Gap Depth: 8 mm
Voice Coil Winding Width: 13 mm
D: 260 mm
Resonance Frequency (ƒS): 63 Hz
Mechanical Moving Mass (MMS): 46.51 g
Diaphragm/Coil Mass (Mmd): 39.60 g
Mechanical Q Factor (QMS): 6.70
Electrical Q Factor (Qes): 0.54
Total Q Factor (QTS): 0.50
Voice Coil DC Resistance (Re): 5.13Ω
Equivalent Acoustic Volume (VAS): 54.5 liters
Force Factor (BxL): 13.20 Wb/m
Mechanical Compliance (CMS): 0.14 mm/N
Mechanical Resistance of Driver (Rms): 2.76 kg/s
Voice Coil Inductance @ 1 kHZ (LE): 0.84 mH
Overall Diameter: 309 mm
Overall Depth: 130 mm
Cut-out Diameter: 283 mm
Mounting Hole Diameter: 7.9 mm
Mounting Slots: 4
Mounting Hole Bolt Circle Diameter: 297 mm
