HELIX coaxial speaker front and side views showing the mounting tabs
HELIX coaxial speaker front and side views showing the mounting tabs
HELIX rear speaker view with its electrical connection detail
HELIX rear speaker view with its electrical connection detail
HELIX universal speaker mounting rings with four fixing tabs
HELIX universal speaker mounting rings with four fixing tabs
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HELIX Ci3 C100.2FM-S3 MK2 Single, 4" 2 Way Single Coaxial Speaker, 3Ω

SKU: COMPOSECi3C1002FMS3MK2Single
Price
$250
Inc. GST. Most orders ship Australia wide for a flat $15.95. Larger or heavier items may cost more.
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Shipping information

Australia wide flat rate shipping is $15.95. Larger or heavier items may cost more; we will confirm when your order is processed. In stock items are dispatched within 1 to 2 business days. Report transit damage within 24 hours with photos so we can lodge a freight claim.

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HELIX coaxial speaker front and side views showing the mounting tabs

HELIX Ci3 C100.2FM-S3 MK2 Single, 4" 2 Way Single Coaxial Speaker, 3Ω

$250

Product features

Before replacing a factory speaker, check its mounting space, impedance and connection. HELIX Ci3 C100.2FM-S3 MK2 Single is the HELIX speaker option described below. Its specifications help you match the driver to the amplifier and installation, rather than buying on diameter alone.

What it does

  • High efficiency and 3 Ohms technology for maximised power output of the amplifier
  • Driver development verified with Klippel Analyzer System
  • 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
  • 0.75” / 20 mm performance tweeter with black aluminium dome for accurate, pure and detailed treble response
  • Refined highly efficient neodymium magnet for high magnetic flux linearity and optimised performance
  • 4" / 100 mm midrange with unique Cenosphere coated paper cone for precise and detailed sound reproduction
  • Shallow neodymium magnet system for low installation depth and high efficiency
  • Integrated tweeter highpass crossover with a 6 dB slope

Specifications

  • Brand: HELIX
  • Distributor product code: COMPOSE Ci3 C100.2FM-S3 MK2 Single
  • Product: HELIX Ci3 C100.2FM-S3 MK2 Single, 4" 2 Way Single Coaxial Speaker, 3Ω
Power handling RMS / Max. P 80 / 120 Watts
Frequency response 100 Hz to 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 B*l 3.2 Tm
Cone area Sd 57 cm 2
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 Aluminium dome and neodymium magnet
Midbass Paper with Cenosphere coating, FlexConnect terminal, neodymium magnet and FlexMount100
Crossover Integrated, 6 dB highpass

Fitment and compatibility

FlexMount100

FlexConnect inlays

Match the mounting measurements, impedance and amplifier requirements before installation. Speaker diameter alone does not confirm vehicle fitment.

This listing is for one speaker. Ask us to confirm the mounting accessories supplied with the individual unit.

Installation

Have a qualified car audio installer check the mounting, wiring and system setup before fitting. Frankies workshops at Albion Park Rail (02) 4257 2636 and South Nowra (02) 4423 5254 can quote on installation.

Warranty

Your purchase is covered by the Australian Consumer Law. Contact Frankies for the warranty terms that apply to this model.

Questions and answers

What am I buying?

HELIX Ci3 C100.2FM-S3 MK2 Single, 4" 2 Way Single Coaxial Speaker, 3Ω. Check the specifications and selected option above for the version supplied.

What equipment is it compatible with?

FlexMount100 FlexConnect inlays

What impedance does it use?

Impedance Z 3 Ω. Match the final load and voice coil wiring to a suitable amplifier.

What power rating should I use?

Power handling RMS / Max. P 80 / 120 Watts. RMS and maximum ratings are different. Check the conditions in the specification table.

What mounting space do I need?

Installation depth 30.0 mm / 1.18”. Check the available depth and clearance in your installation before ordering.

Is this sold as a pair?

No. This listing is a single speaker. Ask us to confirm the accessories supplied with the individual unit before ordering.

What warranty applies?

Your purchase is covered by the Australian Consumer Law. Contact Frankies for the warranty terms for this model.