Powerbass S-4002 4" Coaxial Speakers

The Powerbass S-4002 is a 4" coaxial speaker system built as an OEM drop-in replacement, finished in black to fit factory locations while delivering a cohesive full-range sound in a compact footprint.

• 4" Coaxial Speaker System: integrated woofer and tweeter share the same axis for a single, unified sound package in a small mounting footprint.
• OEM Drop-in Replacement Design: engineered to install in standard factory locations with minimal modification, speeding up upgrades.
• Black Finish: rigid tooled basket with a Flat Black finish for a clean, factory-like appearance in the installation area.
• 2-layer Paper Cone with DDC Coating: Dynamic Damping Coating on a two-layer paper cone helps control cone breakup and improve midrange consistency.
• Double Pressed Treated Foam Surround: durable surround design that maintains excursion control and long-term reliability.
• 6 oz. Motor Structure: magnet/coil assembly sized to drive the 4" voice coil with stable performance in a compact form.
• Shallow Mounting Depth: physical depth optimized for installations with limited space behind mounting surfaces.
• EFF Motor Structures (Efficient Flux Field): design aimed at efficient magnetic flux, contributing to controlled dynamics in a small speaker.
• 0.75" Pure Silk Dome Tweeter w/ Neodymium Magnet: smooth high-frequency output with a compact, high-efficiency magnet for better control in a slim tweeter design.
• SEL Tweeter Ring (Sound Expander Lens): lens element enhances high-frequency dispersion for a wider listening area.
• 4-ohm System Impedance: impedance that is compatible with many standard car audio amplifiers and wiring configurations.

In a typical car audio build, this coaxial pair provides a ready-to-install solution that preserves factory mounting while delivering coherent midrange and refined highs thanks to the silk-dome tweeter and dispersion-enhancing SEL lens. The combination of a shallow depth, robust basket, and DDC-treated cone makes it suitable for vehicles with tight install spaces and factory-looking finishes.