The Skar Audio TX46 are 4" x 6", high-performance, 2-way coaxial speakers engineered and designed for the audiophile seeking sound perfection. The TX series of speakers are extremely powerful and efficient, delivering unrivaled clarity at the highest power levels with accuracy. These 4" x 6" speakers utilize a high quality 1.25" copper voice coil as well as a premium ferrite magnet. 4 Ohm. Frequency Response: 80 Hz - 20 kHz, Sensitivity: 86 dB. Peak Power: 140 Watts, RMS Power: 70 Watts (Pair). Elite TX Series 4" x 6" Coaxial Speaker System - Includes 2 Speakers Peak Power - 140 Watts (Pair) | RMS Power - 70 Watts (Pair) Featuring a 1" High Performance Silk Dome Tweeter | 4 Ohm Impedance Frequency Response Range: 80 Hz - 20,000 Hz Powerful Ferrite Magnet | Sensitivity: 86 dB