HELIX front view of the midrange speaker cone
HELIX front view of the midrange speaker cone
HELIX rear speaker view with the available coloured terminal inserts
HELIX rear speaker view with the available coloured terminal inserts
HELIX rear view of the midrange magnet and connection terminal
HELIX rear view of the midrange magnet and connection terminal
HELIX exploded illustration of the speaker and mounting ring options
HELIX exploded illustration of the speaker and mounting ring options
Click to open expanded view

HELIX Ci5 M80FM-S3 Single, 3.15" Single Midrange Speaker, FlexMount, 3Ω

SKU: COMPOSECi5M80FMS3Single
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 front view of the midrange speaker cone

HELIX Ci5 M80FM-S3 Single, 3.15" Single Midrange Speaker, FlexMount, 3Ω

$250

Product features

Before replacing a factory speaker, check its mounting space, impedance and connection. HELIX Ci5 M80FM-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
  • Special rubber surround and optimised magnet system for large linear cone excursion
  • Dedicated surround manufacturing allows for a smaller installation diameter and a maximised effective cone area compared to typical 80 mm speakers
  • Aluminium dustcap for optimised frequency response in the upper midrange area
  • Automotive grade FlexConnect terminal for fast, secure and fail safe connection
  • Powerful push pull neodymium magnet system for highest efficiency and extremely low distortion
  • Driver development verified with Klippel Analyzer System
  • Two universal FlexMount80 mounting rings for car specific adaption (e.g. Mercedes, Porsche, Tesla etc.) or universal use included in delivery

Specifications

  • Brand: HELIX
  • Distributor product code: COMPOSE Ci5 M80FM-S3 Single
  • Product: HELIX Ci5 M80FM-S3 Single, 3.15" Single Midrange Speaker, FlexMount, 3Ω
Power handling RMS / Max. P 90 / 135 Watts
Impedance Z 3 Ω
DC resistance Re 3.1 Ω
Frequency response 200 Hz to 6,000 Hz
Resonance frequency Fs 156 Hz
Mechanical Q factor Qms 3.68
Electrical Q factor Qes 0.75
Total Q factor Qts 0.63
Compliance Cms 407 µm/N
Equivalent air volume Vas 0.7 L
Force factor B*I 3.2 Tm
Sensitivity SPL 92 dB @ 2.83 V / 1m 88 dB @ 1W / 1m
Cone area Sd 36 cm²
Moving mass Mms 2.6 g
Cone material Silicon coated paper cone
Mechanical resistance Rms 0.68 kg/s
Voice coil diameter ø 20 mm
Voice coil winding height 7 mm
Max. linear excursion Xlin ± 2.5 mm
Max. mechanical excursion Xmax ± 4.5 mm
Outer diameter ø 78.5 mm / 3.09"
Outer diameter with universal mounting ring ø 88.9 mm / 3.50"
Installation diameter ø 69.5 mm / 2.74"
Installation depth 30.2 mm / 1.19"
Features FlexConnect terminal, powerful push pull neodymium magnet system, FlexMount80

Fitment and compatibility

FlexMount80

FlexMount100 (in combination with the optional CFMK80-100)

FlexConnect inlays

WireKits

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 Ci5 M80FM-S3 Single, 3.15" Single Midrange Speaker, FlexMount, 3Ω. Check the specifications and selected option above for the version supplied.

What equipment is it compatible with?

FlexMount80 FlexMount100 (in combination with the optional CFMK80-100) FlexConnect inlays WireKits

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 90 / 135 Watts. RMS and maximum ratings are different. Check the conditions in the specification table.

What mounting space do I need?

Installation depth 30.2 mm / 1.19". 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.