{"product_id":"helix-ci5-w165fm-s3-165mm-3-ohm-midbass-woofers-pair","title":"HELIX Ci5 W165FM-S3 165mm 3 Ohm Midbass Woofers – Pair","description":"\u003ch2\u003eHELIX Ci5 W165FM-S3 – 165mm 3 Ohm Midbass Woofers\u003c\/h2\u003e\u003cp\u003eA pair of 165mm woofers combining 3-ohm impedance, silicon-coated paper cones and 125W RMS \/ 175W maximum power handling. FlexMount165 compatibility and ProConnect terminals support integration into a suitable COMPOSE installation. Their specified frequency range is 50–5,000Hz.\u003c\/p\u003e\u003cp\u003ePart 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.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e6.5” \/ 165 mm advanced midbass with exceptional sound performance and versatile physical integration options\u003c\/li\u003e\n\u003cli\u003eHigh efficiency and 3 Ohms technology for maximized power output of the amplifier\u003c\/li\u003e\n\u003cli\u003eSilicon coated paper cone for excellent impulse response and unmatched frequency response\u003c\/li\u003e\n\u003cli\u003eIntegrated phase plug for improved upper midrange reproduction, reduced compression effects, and increased thermal power handling of the voice coil\u003c\/li\u003e\n\u003cli\u003eEngineered for maximum flexibility – delivers impressive depth and stunning dynamics in both 2-way and 3-way system configurations\u003c\/li\u003e\n\u003cli\u003eHigh-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing\u003c\/li\u003e\n\u003cli\u003eSpecially shaped rubber surround for high linear cone excursion\u003c\/li\u003e\n\u003cli\u003eLarge 1.46” \/ 37 mm voice coil ensures minimum thermal compression and high power handling\u003c\/li\u003e\n\u003cli\u003eAutomotive grade ProConnect connection terminal allows the use of conventional speaker cables or a fast, secure and fail-safe connection via optionally available WireKits\u003c\/li\u003e\n\u003cli\u003ePowerful magnet system for highest efficiency and extremely low distortion\u003c\/li\u003e\n\u003cli\u003eDriver development verified with Klippel Analyzer System\u003c\/li\u003e\n\u003cli\u003eDesigned for the optionally available car-specific FlexMount165 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle\u003c\/li\u003e\n\u003cli\u003eDesigned for optionally available, car-specific WireKits which allow a non-destructive integration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePower handling RMS \/ Max.: 125 \/ 175 Watts\u003c\/li\u003e\n\u003cli\u003eImpedance: 3 Ω\u003c\/li\u003e\n\u003cli\u003eDC resistance: 3.1 Ω\u003c\/li\u003e\n\u003cli\u003eFrequency response: 50 Hz - 5,000 Hz\u003c\/li\u003e\n\u003cli\u003eResonance frequency: 50 Hz\u003c\/li\u003e\n\u003cli\u003eMechanical Q factor: 2.38\u003c\/li\u003e\n\u003cli\u003eElectrical Q factor: 0.50\u003c\/li\u003e\n\u003cli\u003eTotal Q factor: 0.41\u003c\/li\u003e\n\u003cli\u003eCompliance: 742 µm\/N\u003c\/li\u003e\n\u003cli\u003eEquivalent air volume: 17.9 L\u003c\/li\u003e\n\u003cli\u003eForce factor: 5.2 Tm\u003c\/li\u003e\n\u003cli\u003eSensitivity: 92 dB @ 2.83 V \/ 1m; 88 dB @ 1W \/ 1m\u003c\/li\u003e\n\u003cli\u003eCone area: 131 cm²\u003c\/li\u003e\n\u003cli\u003eMoving mass: 14.0 g\u003c\/li\u003e\n\u003cli\u003eCone material: Silicon coated paper cone\u003c\/li\u003e\n\u003cli\u003eMechanical resistance: 1.83 kg\/s\u003c\/li\u003e\n\u003cli\u003eVoice coil diameter: 37 mm\u003c\/li\u003e\n\u003cli\u003eVoice coil winding height: 13.7 mm\u003c\/li\u003e\n\u003cli\u003eMax. linear excursion: +\/- 3.9 mm\u003c\/li\u003e\n\u003cli\u003eOuter diameter: 165 mm \/ 6.5\"\u003c\/li\u003e\n\u003cli\u003eInstallation diameter: 142 mm \/ 5.59\"\u003c\/li\u003e\n\u003cli\u003eInstallation depth: 66.8 mm \/ 2.63\"\u003c\/li\u003e\n\u003cli\u003eFeatures: ProConnect terminal, ; FlexMount165\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation notes\u003c\/h3\u003e\u003cp\u003eCheck the 142mm installation diameter and 66.8mm mounting depth against the vehicle. Vehicle-specific mounting adaptors and wiring accessories must be selected separately where required.\u003c\/p\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 x Ci5 W165FM-S3\u003c\/li\u003e\n\u003cli\u003e2 x Mounting material\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HELIX","offers":[{"title":"Default Title","offer_id":64316706062666,"sku":"CI21604","price":199.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/6364\/9098\/files\/helix-ci5-w165fm-s3-1.jpg?v=1794315767","url":"https:\/\/caraudiodirect.co.uk\/products\/helix-ci5-w165fm-s3-165mm-3-ohm-midbass-woofers-pair","provider":"Car Audio Direct","version":"1.0","type":"link"}