Ci3 C100.2FM-S3

Helix 4" coaxial speakers

2-way performance coaxial speaker system which combines outstanding sound quality with versatile physical integration options
High efficiency and 3 Ohms technology for maximized power output of the amplifier
Automotive grade FlexConnect terminal allow fast and secure connection as well as direct connection to the original cable harness due to optionally available car-specific adaptors
Tweeter

0.75” / 20 mm tweeter with titanium dome for accurate and dynamic treble response
Highly efficient neodymium magnet for high magnetic flux linearity

4" / 100 mm midrange with unique Cenosphere coated paper cone for precise and detailed sound reproduction
High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing
Shallow neodymium magnet system for low installation depth and high efficiency

Power handling RMS / Max.	P	80 / 120 Watts
Frequency response		100 Hz - 25,000 Hz
Impedance	Z	3 Ω
Sensitivity	SPL	91 dB @ 2.83V / 1m 87 dB @ 1W / 1m
Outer diameter	ø	98.0 mm / 3.86”
Installation diameter	ø	89.0 mm / 3.50”
Installation depth		30.0 mm / 1.18”

Midrange
Impedance	Z	3 Ω
DC resistance	Re	3.0 Ω
Resonance frequency	Fs	137 Hz
Mechanical Q factor	Qms	4.37
Electrical Q factor	Qes	0.78
Total Q factor	Qts	0.66
Compliance	Cms	456 μm/N
Equivalent air volume	Vas	2.1 L
Force factor	Bl*	3.2 Tm
Cone area	Sd	57 cm²
Moving mass	Mms	3.0 g
Mechanical resistance	Rms	0.58 kg/s
Voice coil diameter	ø	25 mm
Voice coil winding height		4.8 mm
Max. linear excursion	Xmax	+/- 2.0 mm

Tweeter
Voice coil diameter	ø	20 mm

Features
Tweeter		Titanium dome and neodymium magnet
Midbass		Paper with Cenosphere coating, FlexConnect terminal, neodymium magnet and FlexMount100
Crossover		Integrated, 6 dB highpass

$429.00

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Helix Ci3 C100.2FM-S3 4" coaxial speakers