The Ground Zero Iridium GZIW 165 is a compact 6.5 inch subwoofer designed for drivers who want tight, controlled bass without sacrificing valuable cabin or enclosure space. Part of the Iridium series, it combines smart engineering with durable materials to deliver accurate low frequency performance in a smaller footprint. With a 100 watt RMS power handling rating and a 4 ohm impedance, this subwoofer is well suited to a wide range of aftermarket audio setups, from quality factory upgrades to custom installations.

At the core of the GZIW 165 is a solid 3D HQPP cone supported by a long stroke rubber surround, helping it produce smooth bass response with strong durability over time. The 38 mm copper voice coil, polycot spider and solid aluminum cast basket work together to improve stability and control, while Klippel optimization helps ensure consistent performance. This makes the Iridium series a great choice for audio enthusiasts looking for reliable low end output with refined sound quality.

With an efficiency rating of 85.5 dB and a recommended amplifier range of 60 to 150 watts, this subwoofer is designed to perform best when paired with the right power source. Its 10 mm Xmax, 41 Hz resonance frequency and compact 147 mm mounting diameter give installers more flexibility, while the IMPP dust cap with 3D structure logo adds a premium finishing touch to the design.

Features & Benefits

• Iridium series 6.5 inch subwoofer for compact, high quality bass performance
• 100 watt RMS power handling for dependable everyday use
• 3D HQPP cone delivers controlled, detailed low frequency response
• Long stroke rubber surround enhances excursion and durability
• Klippel optimized design for improved accuracy and consistency
• Solid aluminum cast basket and copper voice coil for strong mechanical stability