CT Sounds Strato 6.5 Inch Component Full Range Speaker Set CT Sounds Strato 6.5 Inch Component Speaker Set; Total Power: 150W RMS | 300W MAX 6.5" Woofers; 19mm Silk Dome Tweeters; Transparent ABX Box Crossovers IMPP (Injection Molded Plastic Polypropylene) Cone with NBR (Nitrile Butadiene Rubber) Surround; Spring Terminals, Y30 Magnet Frequency response (@ SPL -10dB): 50Hz  20kHz; 88dB SPL Cutout Dia:142mm/5.60; Outer Dia:176mm/6.90"; Mounting Depth:65mm/2.55 2 x Strato6.5&#034; component speakers 2 x 19mm Silk dome tweeters 2 x ABS boxed crossovers Speaker size: 6.5 Speaker type: Component Full Range System total power: <span class="a-text-bold">150W (RMS) | 300W (MAX)</span> Rated power per speaker: <span class="a-text-bold">75W (RMS) | 150W (MAX)</span> Rated power per speaker pair: <span class="a-text-bold">150W (RMS) | 300W (MAX)</span> Rated impedance: 4 (Ohms) Sweep voltage: 10V Output SPL (@ 1w/1m): 88dB Resonant frequency: 65Hz Frequency response (@ SPL -10dB): 50Hz  20kHz Magnet size: 90mm X 15mm Magnet type: Y30 ferrite Rated impedance: 4 (Ohms) Sweep voltage: 1.8V Output SPL (@ 1w/1m): 90dB Frequency response(@ SPL -10dB): 900Hz  20kHz Tweeter size (diameter): 19mm Tweeter type: Silk-dome with metal mesh &amp; face grille Magnet type: Neo Crossover circuit: 4F capacitor/100V Crossover point: 3.5kHz Filter for woofer: 6dB Filter for tweeter: 12dB Each speaker has EISV wire wound voice coil, IMPP (Injection Molded Plastic Polypropylene)cone, NBR (Nitrile Butadiene Rubber) surround, spring terminals &amp; PC+NOMEX spider with 4mm top plate &amp; 4mm back plate Voice coil of 1 (diameter) at each woofer Each woofer has Y30 graded ferrite magnet Each 19mm silk-dome tweeter is covered with silver chrome plated face grille with metal mesh and is attached with CCA (Copper Clad Aluminium) wire pair Each crossover circuit box has dark clear top cover with CT Sounds logo printed on top of it Each speaker has black stamp steelbasket &amp; black powder texture paint on body Cutout diameter: 142mm / 5.60 Outer diameter: 176mm / 6.90&#034; Mounting depth: 65mm / 2.55