Vifa-woofer -

: Keep the unit between 5°C and 45°C (41°F - 113°F). High humidity or direct heat can degrade the rubber surrounds of the woofers over time.

: Determines how deep the bass can go (e.g., 37Hz - 80Hz). vifa-woofer

If replacing a driver, match these specs to maintain performance: : Usually 4Ω or 8Ω. : Keep the unit between 5°C and 45°C (41°F - 113°F)