The Sphynx SP-W12-SONO woofer features a rigid cone and is designed for professional use. It has an RMS power rating of 160 W and a maximum power rating of 400 W.

• Type: Woofer
• Diameter: 12"
• Impedance: 8 Ω
• RMS power: 160 W
• Maximum power: 400 W
• SPL sensitivity: 94 dB (1 W/1 m)
• Resonant frequency: 42 Hz
• Upper frequency limit: 5,000 Hz
• DC resistance: 8.05 Ω
• Voice coil diameter: 51 mm
• Voice coil material: KAPTON
• Magnet diameter: 140 mm
• Magnet weight: 1,120 g
• Total weight: 3,450 g
• Zo: 68 Ω
• Diaphragm area (Sd): 0.0053 m²
• BL: 10.14 TM
• Reference efficiency (No): 0.637%
• Mechanical quality factor (Qms): 8.82
• Electrical quality factor (Qes): 1.178
• Total quality factor (Qts): 1.04
• Equivalent air volume (VAS): 98 L
• Compliance (Cms): 246.37 m/N
• Total mass (Mms): 55.84 g
• Diaphragm mass (Mmd): 48.83 g
• Additional cone mass: 34 g