HELIX front view of the midrange speaker cone
HELIX front view of the midrange speaker cone
HELIX rear speaker view with a terminal insert beside the basket
HELIX rear speaker view with a terminal insert beside the basket
HELIX midrange speaker front and side views showing the mounting tabs
HELIX midrange speaker front and side views showing the mounting tabs
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HELIX Ci3 M100FM-S3 Single, 4" Single Midrange Speaker, 3Ω

SKU: COMPOSECi3M100FMS3Single
Price
$195
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 front view of the midrange speaker cone

HELIX Ci3 M100FM-S3 Single, 4" Single Midrange Speaker, 3Ω

$195

Product features

Before replacing a factory speaker, check its mounting space, impedance and connection. HELIX Ci3 M100FM-S3 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
  • Unique Cenosphere coated paper cone for precise and detailed sound reproduction
  • Specially shaped rubber surround for high linear cone excursion
  • Polyurethane dustcap for optimised frequency response in the upper midrange area
  • 1” / 25 mm voice coil ensures high power handling
  • Automotive grade FlexConnect terminal for fast, secure and fail safe connection
  • Shallow neodymium magnet system for low installation depth and high efficiency
  • Driver development verified with Klippel Analyzer System

Specifications

  • Brand: HELIX
  • Distributor product code: COMPOSE Ci3 M100FM-S3 Single
  • Product: HELIX Ci3 M100FM-S3 Single, 4" Single Midrange Speaker, 3Ω
Power handling RMS / max. P 80 / 120 Watts
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Frequency response 120 Hz to 6,000 Hz
Resonance frequency Fs 146 Hz
Mechanical Q factor Qms 4.49
Electrical Q factor Qes 1.02
Total Q factor Qts 0.83
Compliance Cms 280 µm/N
Equivalent air volume Vas 1.1 L
Force factor B*I 3.4 Tm
Sensitivity SPL 91 dB @ 2.83 V / 1m 87 dB @ 1W / 1m
Cone area Sd 53 cm²
Moving mass Mms 4.3 g
Cone material Paper with Cenosphere coating
Mechanical resistance Rms 0.87 kg/s
Voice coil diameter ø 25 mm
Voice coil winding height 4.8 mm
Max. linear excursion Xmax ± 2.0 mm
Outer diameter ø 98 mm / 3.86"
Outer diameter with universal mounting ring ø 104.5 mm / 4.11"
Installation diameter ø 89 mm / 3.50"
Installation depth 30 mm / 1.18"
Features FlexConnect terminal, powerful push pull neodymium magnet system, FlexMount100

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 M100FM-S3 Single, 4" Single Midrange 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 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.