HELIX woofer front and rear views showing the cone and basket
HELIX woofer front and rear views showing the cone and basket
HELIX woofer with a mesh protective grille fitted
HELIX woofer with a mesh protective grille fitted
HELIX rear woofer view showing the magnet label and terminals
HELIX rear woofer view showing the magnet label and terminals
HELIX woofer fitted in a treated vehicle door
HELIX woofer fitted in a treated vehicle door
HELIX close view of the woofer mounted in a vehicle door
HELIX close view of the woofer mounted in a vehicle door
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HELIX Ci7 W200FM-S3 SG, 8" Midbass Woofer Pair, FlexMount + SG, 3Ω

SKU: COMPOSECi7W200FMS3SG
Price
$995
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 woofer front and rear views showing the cone and basket

HELIX Ci7 W200FM-S3 SG, 8" Midbass Woofer Pair, FlexMount + SG, 3Ω

$995

Product features

Before replacing a factory speaker, check its mounting space, impedance and connection. HELIX Ci7 W200FM-S3 SG 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
  • Specially shaped rubber surround for high linear cone excursion
  • Polyurethane dustcap for optimised frequency response in the upper midrange area
  • Large 1.46” / 37 mm voice coil ensures minimum thermal compression and high power handling
  • Compact dimensions with maximum performance despite the small outer diameter, this woofer comes with the same cone area known from typical 200 mm chassis
  • Automotive grade ProConnect connection terminal allows the use of conventional speaker cables or a fast, secure and fail safe connection via optionally available WireKits
  • Powerful magnet system for highest efficiency and extremely low distortion
  • Driver development verified with Klippel Analyzer System

Specifications

  • Brand: HELIX
  • Distributor product code: COMPOSE Ci7 W200FM-S3 SG
  • Product: HELIX Ci7 W200FM-S3 SG, 8" Midbass Woofer Pair, FlexMount + SG, 3Ω
Power handling RMS / Max. P 150 / 225 Watts
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Frequency response 35 Hz to 2,500 Hz
Resonance frequency Fs 52 Hz
Mechanical Q factor Qms 6.04
Electrical Q factor Qes 0.78
Total Q factor Qts 0.69
Compliance Cms 370 µm/N
Equivalent air volume Vas 20.8 L
Force factor B*I 5.6 Tm
Sensitivity SPL 92 dB @ 2.83 V / 1m 88 dB @ 1W / 1m
Cone area Sd 201 cm²
Moving mass Mms 25.6 g
Cone material Ultra high damping (UHD) crafted paper cone
Mechanical resistance Rms 1.40 kg/s
Voice coil diameter ø 37 mm
Voice coil winding height 13.8 mm
Max. linear excursion Xmax ± 3.9 mm
Outer diameter ø 195 mm / 7.68"
Outer diameter with universal mounting ring ø 208.9 mm / 8.22"
Installation diameter ø 173.5 mm / 6.83"
Installation depth 65.8 mm / 2.59"
Features ProConnect terminal, FlexMount200, universal mounting ring with grille

Fitment and compatibility

Flexmount200

WireKits

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

In the box

Listed by the manufacturer:

  • 2 x Ci7 W200FM-S3
  • 2 x Universal mounting ring with grille
  • 2 x Connection cable
  • 2 x Mounting material

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 Ci7 W200FM-S3 SG, 8" Midbass Woofer Pair, FlexMount + SG, 3Ω. Check the specifications and selected option above for the version supplied.

What equipment is it compatible with?

Flexmount200 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 150 / 225 Watts. RMS and maximum ratings are different. Check the conditions in the specification table.

What mounting space do I need?

Installation depth 65.8 mm / 2.59". Check the available depth and clearance in your installation before ordering.

What is supplied?

The manufacturer lists 2 x Ci7 W200FM-S3, 2 x Universal mounting ring with grille, 2 x Connection cable, 2 x Mounting material.

What warranty applies?

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