Sony XS-W124ES 12 inch (30 cm) Mobile ES 4-ohm Car Audio Subwoofer

Separated Notch Edge SurroundThe woofer surround features another proprietary Sony technology, with distinctive curved notches improving the vertical amplitude symmetry, for dramatically reduced distortion and enhanced clarity.Five-beam Frame Structure and Dynamic Air DiffuserThe Five-beam Frame design disperses resonance, while the integrated Dynamic Air Diffuser ensures efficient air circulation for smooth cone travel and cooling of the voice coil.Progressive Height Rate SpiderThe acoustically-optimized spider allows for higher power handling and airflow, with a profile designed for more rapid and precise cushioning of the speaker cone. To increase signal integrity and prevent sound interference, the lead wire from the voice coil is also sewn to the spider, reducing wire movement.Gold-plated Input TerminalsGold-plated spring terminals allow up to AWG#10 speaker cables.Structure cutawayDiscover structures of the Mobile ES speaker, including newly applied mechanical approaches such as Separated Notch Edge Surround, Five-beam Frame design, and Dynamic Air Diffuser.