W12S4 Alpine 12 SVC Subwoofer

W12S4 Alpine BassLine Series 12" 4-ohm subwoofer
The BASS subwoofers are engineered to be fun and loud in a budget friendly category by combining retro styling with enough efficiency to run on 250W RMS.
An optimized magnet circuit allows more focused magnetism in the gap which results in improved efficiency. This means tighter bass control and more output!

• Size: 12"
  
• Impedance: 4 Ohms
• Power Handling: 250 watts RMS
• Peak Power: 750 watts
• Suggested Power Range: 50-250 watts RMS
• Frequency Response: 22-200 Hz
• Sensitivity: 87.9 dB
• Cone: Polypropylene and mica 
• Surround: Poly-foam 
• Magnet Weight: 52 Oz.
• Voice Coil: 2" (50.8mm)
• Stamped steel frame
• Top-mount Mounting Depth: 5-5/16"
• Sealed Box Volume: 1.09 cu. ft.
• Ported Box Volume: 1.91 cu. ft.

Thiele-Small Parameters

• SPL Sensitivity 1W/1M: 87.9 dB
• Re DC Resistance: 3.7 Ohms
• Le Inductance: 2.38 mH
• Fs Free Air Resonance: 30 Hz
• Vas Equivalent Stiffness: 64.3L (2.27 cuft)
• Qms Mechanical Q: 7.66
• Qes Electrical Q: 0.53
• Qts Total Q: 0.49
• Sd Cone Ares: 452 sq cm
• Xmax Linear Excursion: 10mm
• Xmech Mechanical Travel: 52 mm