HELIX Ci5 S200FM-S2 200mm Single 2 Ohm Hybrid Woofers – Pair

HELIX Ci5 S200FM-S2 – 200mm Single 2 Ohm Hybrid Woofers

A pair of shallow 200mm hybrid woofers with single 2-ohm voice coils, injected polypropylene cones and 200W RMS / 400W maximum power handling. A 47mm installation depth and FlexMount200 compatibility provide useful flexibility for space-conscious bass installations. The specified frequency range is 25–500Hz.

Part of the HELIX COMPOSE i5 range, these drivers are supplied as a pair for use in a suitable custom or vehicle-adapted speaker system. Select the correct mounting hardware, wiring and crossover configuration for the installation; FlexMount compatibility alone does not establish fitment for a particular vehicle.

Key features

• 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
• Driver development verified with Klippel Analyzer System
• 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

Technical specifications

• Power handling RMS / Max.: 200 / 400 Watts
• Impedance: 1 x 2 Ω
• DC resistance: 1.8 Ω
• Frequency response: 25 Hz - 500 Hz
• Resonance frequency: 47 Hz
• Mechanical Q factor: 9.12
• Electrical Q factor: 0.79
• Total Q factor: 0.73
• Compliance: 297 µm/N
• Equivalent air volume: 15.7 L
• Force factor: 5.1 Tm
• Sensitivity: 92 dB @ 2.83 V / 1m; 86 dB @ 1W / 1m
• Cone area: 194 cm²
• Moving mass: 38 g
• Cone material: Injected polypropylene
• Mechanical resistance: 1.29 kg/s
• Voice coil diameter: 38 mm
• Voice coil winding height: 20.6 mm
• Max. linear excursion: +/- 7.8 mm
• Outer diameter: 195 mm / 7.68"
• Installation diameter: 173.5 mm / 6.83"
• Installation depth: 47.0 mm / 1.85"
• Features: FlexMount200

Installation notes

This S2 version has one 2-ohm voice coil per driver. Match the final system load to a suitable amplifier. Vehicle-specific FlexMount adaptors and any grilles are not listed in the supplied contents.

What’s included

• 2 x Ci5 S200FM-S2
• 2 x Mounting material

UK Delivery Options:

• Standard Delivery 2-3 Working Days £4.99
• Courier Next Working Day £9.99
• Courier Saturday £25

International Delivery Options:

Some European countries are included - Please email us to confirm we can send to you destination. Sales@CarAudioDirect.co.uk

Order Tracking:

Visit the DPD website Tracking page here - You will need your tracking number

Unwanted Goods:

In accordance with The Consumer Contracts Regulations (2015), you have a 14 working day 'cooling off period' in which you have the right to cancel your purchase and receive a full refund.

Manufacturer's warranty:

Beyond this 14 working day period, you are covered under the manufacturer's warranty which is typically 1 year (Excluding Open Box products). If your product becomes faulty during this period, you should contact our eSupport department, via the website, direct email or phone for a returns number. We will then arrange for your item to be repaired (or replaced, if appropriate with a new product) or provide details of the manufacturers local service centre.

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