BMW Advanced Loudspeaker System | HELIX Ci3100 | Helix Ci7T20

The speaker system consists of the high-quality Helix Ci3M100FM-S3 mid-bass driver and the premium Helix Ci3M100FM-S3 tweeter with a fabric dome and coupling volume, featuring vehicle-specific adaptation, a tuned crossover, and plug-and-play connection adapters.

Installation is simple and requires no wiring.

Features

• 2-way performance speaker kit that combines unique sound characteristics with versatile integration options
• High efficiency and 3-ohm technology for maximized amplifier power output
• Ingenious automotive-standard connectors for a secure, reverse-polarity connection – COMPOSE Connect & FlexConnect

Tweeter:

• Helix Ci7T20, extremely wide-dispersion 20 mm high-end silk dome tweeter
• Coupling volume for low resonance frequency and reduced distortion
• Outer ring neodymium magnet
• Precisely coated textile diaphragm
• Optimized dome shape for wide frequency range
• Ventilated voice coil former for reduced distortion and compression
• Supplied with mounting adapter CFMK20 BMW.1

Midrange:

• HELIX Ci3 M100 mm midrange driver with unique Cenosphere-coated paper diaphragm for precise and detailed sound reproduction
• Glass bead reinforced high-tech polymer composite basket for maximum rigidity and minimal distortion Resonances
• Flat neodymium magnet system with high efficiency allows for a shallow mounting depth
• Polyurethane dome (dustcap) for optimizing the frequency response in the upper midrange
• Adapted mounting adapter with cable adapter for BMW i3/i3S

Crossover

• High-quality, separate crossover with compact dimensions for easy installation
• Extensively tuned – with a 12 dB slope for the tweeter
• Reversible connection to the original vehicle wiring harness

Technical Data