



Even in cars without genuine tweeters, the coaxial speakers make the high frequencies clearer.
【HELIX Ci3 C100.2FM-S3+BMW SET | 10cm 2-Way Coaxial Speakers for BMW】
Ci3 C100.2FM-S3+BMW SET is a speaker set designed for installation in BMW vehicles, based on HELIX’s 10cm 2-way coaxial speaker driver unit.
If the sound from the factory speakers feels a bit muffled, you want the contours of vocals and instruments to be a little clearer, but you’d rather avoid major modifications—
for BMW owners like you, it’s an option that makes it easier to enhance the sound character while taking advantage of the OEM mounting locations.
This model is a 10cm 2-way coaxial unit using the M100FM-S3 midrange frame.
The tweeter uses a 20mm titanium dome diaphragm and a powerful neodymium magnet, with a configuration focused on high-frequency extension, information retrieval, and the sound’s attack.
For the midrange/woofer section, it employs a newly developed spherosphere-coated paper cone. With a high-efficiency magnet and a magnetic circuit driven by a 25mm-diameter voice coil, it’s designed to make it easier to reproduce subtle nuances and a sense of speed.
Because it’s a coaxial type, it’s easier to create a cohesive sound even when replacing speakers while using the OEM positions. It’s a direction that makes differences easier to notice in music you listen to often—such as vocals, acoustic, and pop.
Rather than sounding flashy, it suits those who want to improve the clarity of the mid-to-high range that can be slightly buried with the factory setup, so you can enjoy your usual tracks more comfortably.
At LOGON, we offer recommendations not only based on the standalone performance of the speakers, but also considering the installation conditions on the vehicle side and the compatibility with the factory audio.
Even with the same speakers, the final result changes depending on how well they fit during installation, how they are fixed, wiring processing, and any adjustments needed. Especially for BMW, the key points vary depending on the model, year, and the specifications of the factory system, so it’s important to create a configuration that is practical for the actual vehicle.
Compatible with FlexMount100 and FlexConnect, it includes the UniversalFlexMount100 adapter and the FlexConnect adapter (Type A).
In addition, during installation we guide you by combining the appropriate mount for your specific BMW model. That means you can move forward while confirming at the store things like “Will this speaker fit my BMW?” and “Can we improve it without ruining the OEM feel?”
This is an easy-to-consider model for anyone who wants to change the impression of the sound starting with the front speakers—without significantly altering the factory audio.
The best combination depends on your vehicle model, your current system, and how you listen. If you want to make your BMW sound a little more enjoyable, please consult us. We’ll look at your actual vehicle and think together about a shape that’s satisfying without unnecessary trouble.
■ Main Specifications
【Basic Information】
Product name: Ci3 C100.2FM-S3+BMW SET
Brand: HELIX
Type: 10cm 2-way coaxial speaker driver unit
【Speaker Configuration】
Tweeter: 20mm titanium dome diaphragm
Tweeter magnet: Neodymium magnet
Midrange/Woofer: Spherosphere-coated paper cone
Voice coil diameter: 25mm
【Installation / Connection】
Compatible with: FlexMount100 / FlexConnect
Included: UniversalFlexMount100 adapter, FlexConnect adapter (Type A)
Installation: Mounted by combining the appropriate mounts for the vehicle model
BMW E60/E61/E65/E66/E83/E70/E71/E89 | |
| Woofer Opening Size | 104.5mm |
| Woofer Depth Size | 29.5mm |