HELIX Ci5 M50FM-S3 50mm 3 Ohm Wideband Speakers – Pair

HELIX Ci5 M50FM-S3 – 50mm 3 Ohm Wideband Speakers

A pair of compact 50mm wideband drivers designed for tight installation spaces and flexible DSP-based systems. Their silicon-coated paper cones, aluminium dustcaps and push-pull neodymium magnet systems support a broad 300–20,000Hz response. FlexMount50 hardware and mounting rings with grilles are supplied.

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

• 2” / 50 mm advanced wideband speaker with exceptional sound performance and versatile physical integration options
• High efficiency and 3 Ohms technology for maximized power output of the amplifier
• Silicon coated paper cone for excellent impulse response and unmatched frequency response
• Maximized cone area and an aluminum dust-cap directly coupled to the voice coil, achieving a wide frequency response of 300 – 20,000 Hz
• High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing
• Special rubber surround and optimized magnet system for large linear cone excursion
• Dedicated surround manufacturing allows for a smaller installation diameter and a maximized effective cone area compared to typical 50 mm speakers
• Powerful push-pull neodymium magnet system for highest efficiency and extremely low distortion
• Driver development verified with Klippel Analyzer System
• Universal FlexMount50 mounting ring for car-specific adaption (e.g. Audi, Ford, Mercedes etc.) or universal use included in delivery
• Universal mounting ring with grille included in delivery

Technical specifications

• Power handling RMS / Max.: 70 / 100 Watts
• Impedance: 3 Ω
• DC resistance: 3.1 Ω
• Frequency response: 300 Hz - 20,000 Hz
• Resonance frequency: 240 Hz
• Mechanical Q factor: 3.09
• Electrical Q factor: 0.80
• Total Q factor: 0.68
• Compliance: 300 µm/N
• Equivalent air volume: 0.16 L
• Force factor: 2.8 Tm
• Sensitivity: 89 dB @ 2.83 V / 1m; 85 dB @ 1W / 1m
• Cone area: 19.6 cm²
• Moving mass: 1.43 g
• Cone material: Silicon coated paper cone
• Mechanical resistance: 0.71 kg/s
• Voice coil diameter: 20 mm
• Voice coil winding height: 7 mm
• Max. linear excursion: +/- 2.5 mm
• Max. mechanical excursion: +/- 3.5 mm
• Outer diameter: 59.8 mm / 2.34"
• Outer diameter with universal mounting ring: 70.0 mm / 2.75"
• Installation diameter: 50.9 mm / 2.00"
• Installation depth: 25.2 mm / 0.99"
• Features: Powerful push-pull neodymium magnet system,; FlexMount50

Installation notes

These are wideband drivers rather than full-range bass speakers. Select suitable filtering and amplification for the intended installation.

What’s included

• 2 x Ci5 M50FM-S3
• 2 x Universal FlexMount CFM50 MULTI.1
• 2 x Speaker gasket
• 2 x Mounting ring with grille
• 1 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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