Progressive spider - Each Reference subwoofer features a progressive spider, which provides better control at excursion limits than a linear spider. The benefit is reduced distortion at high output levels.

Large-roll rubber surrounds - This material provides optimum cone-edge suspension and absorbs distortions that may travel up the cone edge. The benefit is reduced distortion.

High rigid MDF enclosure with black vinyl finish - this elegant cabinet prevents vibrations and features engraved Infinity logos on its lacquered side panels.

Custom tuned bass reflex system with proprietary port acoustically optimized for the in-car environment for tight and deep bass response. The double-flared port eliminates mechanical noises created by excessive turbulence at the mouth of the vent. The large vent diameter reduces suspension losses for better low-frequency reproduction.

• Subwoofer Type: 300mm
• Enclosure Design: Vented Box
• Max Power Handling: 1200 Watts
• RMS Power Handling: 300 Watts
• Sensitivity: 95dB (1 Watt/1m)
• Nominal Impedance: 4 Ohms
• Frequency Response (- 10dB): 35-120 Hz