Specifications

• Nominal Diameter: 12”
• Nominal Impedance: 4 ohms
• RMS Power Handling: 250 Watts
• MAX Power Handling: 500 Watts
• Sensitivity (1W/1m): 90 dB
• Frequency Response: 25 Hz–4.2 kHz
• Recommended Low Pass Crossover: 90 Hz

Motor

• Voice Coil Diameter: 2” / 50.8 mm
• Voice Coil Former Material: Aluminum
• Winding Material: CCAW
• Cone Material: Paper
• Dust Cap Material: Paper
• Surround Material: Foam
• Basket Material: Steel
• Basket Color/Finish: Glossy Black
• Magnet Material: Ferrite
• Magnet Weight: 45 Oz

Thiele & Small Parameters

• Vas (Equivalent Volume): 32.8 L
• Xmax (Excursion, one way): 17 mm
• Fs (Free Air Resonance): 41 Hz
• Qms (Mechanical Factor): 4.611
• Qes (Electrical Factor): 1.116
• Qts (Total Factor): 0.898
• Mms (Moving Mass): 174.993 g
• Cms (Compliance): 0.049 mm/H
• Bl (Force Factor): 12.946
• Le (Voice Coil Inductance): 1.018 mH
• Sd (Diaphragm Area): 530.93 cm²
• Re (DC Resistance): 3.4 ohms
• EBP (Efficiency Bandwidth Product): 36.73

Measurements

• Overall Diameter: 12.44” / 316 mm
• Overall Depth: 6.42” / 163 mm
• Front Mount Baffle Cutout: 10.9” / 277 mm
• Mounting Depth: 5.47” / 139 mm
• Motor Diameter: 5.94” / 151 mm