The CB W165-S3 is the 6.5″ midbass from Helix’s Compose Basic range, the entry point to the Compose family. It’s a straightforward upgrade over factory door woofers, built to fit tight door spaces and work hand in hand with Helix and Match amplifiers.

Each driver handles 80 W RMS (120 W max) and runs at 3 Ohms, which lets a Helix or Match amplifier deliver more of its power and gives a clear gain in efficiency and maximum volume. Sensitivity is 92 dB at 2.83 V, and the response runs from 60 Hz to 3,500 Hz.

A light but stiff polypropylene cone keeps the bass tight and clean, while the vented steel basket and strong magnet keep it controlled at higher power. With a mounting depth of 61.4 mm it suits most door locations without modification. Supplied as a pair with mounting material.