PowerBass S-4002 4" Full Range Speakers - Pair Since their introduction, S-Series coaxials have made a name for themselves with avid music fans the world over. Without question a fantastic replacement for most OEM speaker applications, the S Series speaker systems continue to offer great performance at a great price. Features - • 4" Co-Axial Speaker System • OEM Drop in Replacement Design • Black 2-layer Paper, DDC (Dynamic Damping Coating) Cone • Double Pressed Treated Foam Surround • 6 oz. Motor Structure • Shallow Mounting Depth • EFF Motor Structures (Efficient Flux Field) • Rigid Tooled Basket With Flat Black Finish • 0.75" Pure Silk Dome Tweeter w/Neodymium Magnet • SEL Tweeter Ring (Sound Expander Lens) • 4-ohm System Impedance Specifications - • Nominal Impedance: 4-ohm • Material: 2 Layer Paper DDC cone / silk dome tweeter • Magnet Size: 6 oz • Sensitivity (1W / 1M): 86 dB • Mounting Depth: 1.8 in • Size: 4" • Sensitivity: 86 dB • Frequency Response: 70 Hz - 20 kHz • Power Handling (RMS/Peak): 35 / 105 watts | Powerbass | | S-4002 | 4" Coaxial OEM Replacement Speakers | Pair | Black/Gray | Best Buy