Powerbass S-6903 6"x9" Coaxial Speakers With its super efficient Class-BD

With its super efficient Class-BD circuit topology

Suggested Ported Space: 2-3ft3

SEL Tweeter Ring (Sound Expander Lens)

giving you lots of surface area — and a bigger cone means more bass to complement the superior high-frequency response

Front Mount Baffle Cutout

Powerbass S-6903 6"x9" Coaxial Speakers With its super efficient Class-BD6x9" Tri Axial Speaker System OEM Drop in Replacement Design Black 2 layer Paper, DDC (Dynamic Damping Coating) Cone Double Pressed Treated Foam Surround 10 oz. Motor Structure Shallow Mounting Depth EFF Motor Structures (Efficient Flux Field) Rigid Tooled Basket With Flat Black Finish 2" PEI Dome Mid range and 0. 75 Tweeter SEL Tweeter Ring (Sound Expander Lens) 4 ohm System Impedance Specifications Nominal Impedance: 4 ohm Material: 2 layer paper