The HELIX CB C165.2-S3 is a 2-way 6.5 inch coaxial speaker from the HELIX COMPOSE platform that combines universal fitment with vehicle-oriented engineering for efficient in-car audio. It uses a lightweight polypropylene midbass cone, a coated silk 20 mm tweeter with a neodymium magnet, a ventilated steel basket for improved cooling, and an integrated 6 dB crossover while maintaining a compact profile for tight installation locations.