Tractrix horn technology produces powerful, crystal-clear audio that mimics the live music experience 1" linear travel suspension (LTS) aluminum tweeter reduces distortion for more detailed sound performance 4" spun-copper thermoformed crystalline polymer (TCP) woofers allow for a smoother response and better audio accuracy Hidden fasteners, edge-to-edge horn, and low-profile magnetic grilles give them a sleek and modern look MDF cabinet features a wood grain look, allowing them to complement many interiors Bracing design minimizes cabinet vibration for improved audio accuracy Durable, scratch-resistant cabinet construction ensures long-lasting use Required accessories (sold separately) Speaker wire (make sure to measure the room so you'll know how much wire to get)