Powerbass S-3502 3.5" Coaxial Speakers 4-ohm Mono Power: 180 watts

4-ohm Mono Power: 180 watts x 2

Input Impedance 20K Ohms

Built-in 0°/180° phase switch

Suggested Ported Space: 2-3ft3

Sensitivity (1W / 1M): 92 dB

Powerbass S-3502 3.5" Coaxial Speakers 4-ohm Mono Power: 180 watts3. 5" Co Axial Speaker System OEM Drop in Replacement Design Black 2 layer Paper, DDC (Dynamic Damping Coating) Cone Double Pressed Treated Foam Surround 4 oz. Motor Structure Shallow Mounting Depth EFF Motor Structures (Efficient Flux Field) Rigid Tooled Basket With Flat Black Finish 0. 5" PEI Tweeter w Neodymium Magnet SEL Tweeter Ring (Sound Expander Lens) 4 ohm System Impedance Specifications Nominal Impedance: 4 ohm Material: 2 Layer Paper DDC