HELIX Ci5 M80FM-S3 80mm 3 Ohm Midrange Speakers – Pair

HELIX Ci5 M80FM-S3 – 80mm 3 Ohm Midrange Speakers

A pair of 80mm midrange drivers with 3-ohm impedance and a silicon-coated paper cone. The compact push-pull neodymium magnet system and FlexMount80 design support installation flexibility, while FlexConnect inlays and universal connection cables help with system integration. Rated power handling is 90W RMS / 135W maximum.

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

• 3.15” / 80 mm advanced midrange 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
• 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 80 mm speakers
• Aluminum dustcap for optimized 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
• Optionally available: CFM80-100 adaptor ring that enables the use of optionally available car-specific FlexMount100 adaptors for an acoustically optimized and professional integration into the vehicle’s original mounting location
• Universal mounting ring with grille included in delivery
• Designed for optionally available, car-specific WireKits which allow a non-destructive integration

Technical specifications

• Power handling RMS / Max.: 90 / 135 Watts
• Impedance: 3 Ω
• DC resistance: 3.1 Ω
• Frequency response: 200 Hz - 6,000 Hz
• Resonance frequency: 156 Hz
• Mechanical Q factor: 3.68
• Electrical Q factor: 0.75
• Total Q factor: 0.63
• Compliance: 407 µm/N
• Equivalent air volume: 0.7 L
• Force factor: 3.2 Tm
• Sensitivity: 92 dB @ 2.83 V / 1m; 88 dB @ 1W / 1m
• Cone area: 36 cm²
• Moving mass: 2.6 g
• Cone material: Silicon coated paper cone
• Mechanical resistance: 0.68 kg/s
• Voice coil diameter: 20 mm
• Voice coil winding height: 7 mm
• Max. linear excursion: +/- 2.5 mm
• Max. mechanical excursion: +/- 4.5 mm
• Outer diameter: 78.5 mm / 3.09"
• Outer diameter with universal mounting ring: 88.9 mm / 3.50"
• Installation diameter: 69.5 mm / 2.74"
• Installation depth: 30.2 mm / 1.19"
• Features: FlexConnect terminal, powerful push-pull neodymium magnet system,; FlexMount80

Installation notes

FlexMount100 installation requires the optional CFMK80-100 adaptor. These midrange drivers need suitable crossover filtering and are not a complete component speaker system.

What’s included

• 2 x Ci5 M80FM-S3
• 2 x Universal FlexMount CFM80 MULTI.1 & MULTI.2
• 2 x Universal connection cable
• 2 x FlexConnect inlay set (A, B, C, D)
• 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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