These quality Sub Zero Ice 6x9" triaxial car audio speakers are made to the following specifications: 1" ASV Voice Coil, lightweight polypropylene cone, Frequency response 20-80KHz, Sensitivity - 89dB, Power RMS.MAX 140/450 Watts, 100x18mm Magnet with rubber boot, 35mm dome tweeter. They come packaged in a full colour box complete with instruction manual.Box Contains1 x Pair of 6x9" Triaxial 450 Watt speakers