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Helix Compose i5 Ci5 S200FM-S2 Woofer 8 Inch FlexMount Hybrid Subwoofer 200w RMS

£254.99 Highly Rated
In stock
SKU: 90716MPN: Ci5 S200FM-S2

The HELIX Ci5 S200FM-S2 is an 8-inch FlexMount hybrid subwoofer from the COMPOSE i5 series. It handles 200W RMS.

Developed Inside the Vehicle

COMPOSE is HELIX’s answer to modern car design. Developed “inside the vehicle, for the vehicle”, it blends universal speakers with the advantages of vehicle-specific systems.

3 Ohm Efficiency

Smart 3-ohm technology raises efficiency and maximum sound pressure. Impedances are matched to HELIX and MATCH amplifiers, so the pairing always delivers full performance.

FlexMount Fitting

The i5 series uses HELIX’s FlexMount system, simplifying installation across a wide range of vehicles and factory speaker positions.

Specification
Power handlingRMS / Max. P
ImpedanceZ 1 x 2 Ω
Frequency response25 Hz - 500 Hz
SensitivitySPL 92 dB @ 2.83 V / 1m 86 dB @ 1W / 1m
Conearea Sd 194 cm²
Conematerial Injected polypropylene
Voice coildiameter ø 38 mm
Voice coilwinding height 20.6 mm
More specs
  • Exceptional cone excursion – ensures high sound pressure levels and impressive low-frequency reproduction
  • Hybrid flat woofer concept – a perfect balance between a powerful subwoofer and a mid-woofer driver that covers a frequency range from 25 to 500 Hz
  • Chassis with 1 x 2 Ohms single voice coil for maximum power output of the amplifier
  • Minimum installation depth – an innovative basket design with only 47 mm installation depth for the use in restricted mounting spaces
  • Compact dimensions with maximum performance – despite the small outer diameter, this woofer comes with the same cone area known from typical 200 mm chassis
  • Lightweight polypropylene cone which provides essential stiffness for phenomenal sound performance
  • High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing
  • Powerful magnet system for high efficiency and optimum impulse response
  • Perfect for difficult applications – e.g. can be installed under the seats in various
  • BMW models or as front subwoofer in Mercedes cars
  • FlexMount200 technology – Designed car-specific adapters, which allow acoustically-optimized and professional integration in the original installation positions of under-seat and bulkhead loudspeakers
  • 200 / 400 Watts
  • DC resistance Re 1.8 Ω
  • Resonance frequency Fs 47 Hz
  • Mechanical Q factor Qms 9.12
  • Electrical Q factor Qes 0.79
  • Total Q factor Qts 0.73
  • Compliance Cms 297 µm/N
  • Equivalent air volume Vas 15.7 L
  • Force factor B*I 5.1 Tm
  • Moving mass Mms 38 g
  • Mechanical resistance Rms 1.29 kg/s
  • Max. linear excursion Xmax +/- 7.8 mm
  • Outer diameter ø 195 mm / 7.68"
  • Installation diameter ø 173.5 mm / 6.83"
  • Installation depth 47.0 mm / 1.85"
  • Features FlexMount200
  • FlexMount200
What's Included
  • 2 x Ci5 S200FM-S2
Product information

About the brand

Helix

Helix by Audiotec Fischer is a premium brand specializing in high-quality car audio products, offering innovative solutions for sound processing, amplification, and tuning.

Known for their advanced digital signal processors (DSPs), amplifiers, and custom solutions, Helix delivers superior sound performance and precision tuning for audiophiles and automotive enthusiasts.

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At CEN we take pride in being able to share the quality of our work as well as being able to show what incredible products we have installed week on week.

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Audiotec Fischer Brands

High-End Car Hifi components from Audiotec Fischer

Frequently Asked Questions

Q: Will these speakers fit my car?

A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.

Q: Do I need an amplifier to run these speakers?

A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.

Q: What is the difference between coaxial and component speakers?

A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.

Q: Do these come as a pair?

A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.

Q: Can CEN fit these speakers for me?

A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.