PowerBass S-50C 5.25" Component 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 - • 5.25" Component Speaker System • Black 2-layer Paper, DDC (Dynamic Damping Coating) Cone • Double Pressed Treated Foam Surround • 10 oz. Motor Structure • Shallow Mounting Depth • 0.75" Pure Silk Dome Tweeter w/Neodymium Magnet • EFF Motor Structures (Efficient Flux Field) • Rigid Tooled Basket With Flat Black Finish • Computer Aided External 12dB 2-way Crossover Network • 4-ohm System Impedance Specifications - • Nominal Impedance: 4-ohm • Material: 2 layer paper DDC cone / silk dome tweeter • Magnet Size: 8 oz • Sensitivity (1W / 1M): 89 dB • Mounting Depth: 2.0 in • Size: 5.25 in • Sensitivity: 89 dB • Frequency Response: 65 Hz - 20 kHz • Power Handling (RMS/Peak): 50 / 150 watts