{"product_id":"cicada-audio-chx525-4pro-5-25-pro-coaxial-horn-speakers","title":"Cicada Audio CHX525.4PRO – 5.25\" PRO Coaxial Horn Motorcycle Speakers (4Ω, N45SH Neodymium, Pair)","description":"\u003ch2\u003eThe 4Ω CHX525PRO for bridged amplifier channels – 300W horn coaxials for 1998–2013 Harley-Davidson® and 2014+ Indian® fairings\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cicada Audio CHX525.4PRO is a 5.25-inch 4Ω coaxial with a horn-loaded aluminium tweeter, rated at 300W RMS (600W peak) with 92dB sensitivity. A Carbon Matrix Composite™ cone, N45SH neodymium motor and vented diecast basket carry the power, and a Nanofram™ cover protects the horn. External 12dB crossovers with –3dB and –6dB tweeter attenuation are included. Sold as a pair.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe 4Ω load is the difference from the \u003ca href=\"\/products\/cicada-audio-chx525-2pro-5-25-pro-coaxial-horn-speakers\"\u003eCHX525.2PRO\u003c\/a\u003e. It's what lets two amplifier channels be bridged into each speaker, and it keeps the current draw lower on a four-channel amp running a full system. Compared with the original \u003ca href=\"\/products\/cicada-audio-chx525-4-pro-coaxial-horn-speakers\"\u003eCHX525.4\u003c\/a\u003e, which is still available, the PRO is rated for 300W RMS instead of 150W. It uses an N45SH motor, a flat-wound copper voice coil on a TIL former, a vented basket and a cloth surround, and comes with a 3-year warranty. Its published mounting diameter is larger, so check it against your fairing.\u003c\/p\u003e\n\n\u003ch3\u003eWho This Is For\u003c\/h3\u003e\n\n\u003cp\u003eRiders driving the front pair from bridged channels, which is the usual way to get serious power from a compact four-channel amp when only two speakers need it. It also suits builders who want every speaker on the bike at 4Ω for lower current draw and more thermal margin. The fitment is the same as its 2Ω sibling: 1998–2013 Harley batwing and sharknose fairings, and Indian® Chieftain®, Roadmaster®, Challenger® and Pursuit® from 2014 on. If your amp will run one speaker per channel at 2Ω, the \u003ca href=\"\/products\/cicada-audio-chx525-2pro-5-25-pro-coaxial-horn-speakers\"\u003eCHX525.2PRO\u003c\/a\u003e gets more from it.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Is Best For\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBridged front channels\u003c\/strong\u003e – bridge a four-channel amp into two channels and each speaker sees a single high-power output. The \u003ca href=\"\/products\/cicada-audio-flx700-4-4-channel-motorcycle-amplifier\"\u003eFLX700.4\u003c\/a\u003e bridges to 350W × 2 into 4Ω, and the \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e adds DSP on the same output stage. That is a close match for this speaker's 300W RMS rating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA four-speaker system at 4Ω\u003c\/strong\u003e – the \u003ca href=\"\/products\/cicada-audio-flx2000-4-4-channel-motorcycle-amplifier\"\u003eFLX2000.4\u003c\/a\u003e makes 331W × 4 into 4Ω in stereo, so front and rear 4Ω speakers can each get full power without the amp working at 2Ω.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLower current and heat\u003c\/strong\u003e – at a given voltage, a 4Ω load draws roughly half the current of a 2Ω load. On an older charging system, or a build with several amps, that margin is worth having.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorn clarity over wind\u003c\/strong\u003e – 92dB sensitivity and a horn-loaded tweeter lift vocals above road noise, with –3dB or –6dB attenuation available if the horn is too forward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"maa-note maa-note--warning\"\u003e\n  \u003ch3\u003eSet the High-Pass Before You Power Up\u003c\/h3\u003e\n  \u003cp\u003eRun the CHX525.4PRO behind a high-pass filter set to \u003cstrong\u003e120Hz minimum at 24dB per octave\u003c\/strong\u003e. A horn coaxial this size reaches its excursion limit quickly below that point, and the damage from crossing too low is mechanical, not thermal: the cone over-travels and the tinsel leads tear. If your amplifier only offers a 12dB-per-octave filter, set the frequency higher to get comparable protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"maa-alert\"\u003e\n  \u003ch3\u003eBridging and the 4Ω Rule\u003c\/h3\u003e\n  \u003cp\u003eWhen two amplifier channels are bridged into one speaker, each channel sees half the speaker's impedance. A 4Ω speaker therefore loads each channel at 2Ω, the lowest most Class-D motorcycle amps are rated for, so bridged builds need a 4Ω speaker. If you run one speaker per channel in stereo on a 2Ω-stable amp instead, the \u003ca href=\"\/products\/cicada-audio-chx525-2pro-5-25-pro-coaxial-horn-speakers\"\u003eCHX525.2PRO\u003c\/a\u003e draws more power from each channel. When in doubt, tell us the amp and how it's wired and we'll confirm the right version.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eThe Bottom Line\u003c\/h3\u003e\n\n\u003cp\u003eThe CHX525.4PRO is the CHX525PRO for bridged channels and all-4Ω builds: 300W of horn-loaded output for a pre-2014 Harley or a modern Indian® fairing, at a load that keeps the amp comfortable. For a matched system, the \u003ca href=\"\/pages\/build-your-system\"\u003eSystem Builder\u003c\/a\u003e will take your model and year and price the whole setup.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eStreet Glide®, Electra Glide®, Ultra Classic® and Ultra Limited\u003c\/td\u003e\n\u003ctd\u003eBatwing fairing\u003c\/td\u003e\n\u003ctd\u003e1998–2013\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRoad Glide® and Road Glide® Ultra\u003c\/td\u003e\n\u003ctd\u003eSharknose fairing\u003c\/td\u003e\n\u003ctd\u003e1998–2013\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTri Glide® Ultra \/ Ultra Classic\u003c\/td\u003e\n\u003ctd\u003eBatwing fairing\u003c\/td\u003e\n\u003ctd\u003e2009–2013\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eIndian® Chieftain® and Roadmaster®\u003c\/td\u003e\n\u003ctd\u003eFairing\u003c\/td\u003e\n\u003ctd\u003e2014+\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eIndian® Challenger® and Pursuit®\u003c\/td\u003e\n\u003ctd\u003eFairing\u003c\/td\u003e\n\u003ctd\u003e2020+ \/ 2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003c\/p\u003e\n\n\u003chr class=\"maa-tab-split\"\u003e\n\n\u003ch3\u003eWhat's Inside the CHX525.4PRO\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eN45SH neodymium motor\u003c\/strong\u003e drives a \u003cstrong\u003e38.1mm (1.5\") voice coil\u003c\/strong\u003e of flat-wound copper on a \u003cstrong\u003eTIL composite former\u003c\/strong\u003e, sealed in \u003cstrong\u003eBlack Coat™ high-temperature thermoset resin\u003c\/strong\u003e. Flat wire fills the magnetic gap more densely than round wire, and the SH grade magnet holds its strength as temperature climbs. \u003cem\u003eOn the road: after an hour at highway volume in a closed fairing, the speaker still has the control it had at the first set of lights.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCarbon Matrix Composite™ (CMC™) cone\u003c\/strong\u003e is light and stiff and handles high temperatures. It sits on a \u003cstrong\u003elow-profile cloth surround\u003c\/strong\u003e that reacts faster than a heavy rubber roll. \u003cem\u003eOn the road: bass lines stay defined rather than smeared when the amp is pushing hard.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eVortex Flow Venting™\u003c\/strong\u003e diecast aluminium basket moves air past the coil on every stroke. \u003cem\u003eOn the road: cooling that scales with how hard you are playing it.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ehorn-loaded aluminium tweeter\u003c\/strong\u003e is protected by a \u003cstrong\u003eNanofram™ horn cover\u003c\/strong\u003e and sits on a \u003cstrong\u003eremovable threaded flange\u003c\/strong\u003e that can be modified. The \u003cstrong\u003eRain or Shine Pro™\u003c\/strong\u003e construction resists UV and moisture. \u003cem\u003eOn the road: rain and road spray are kept off the tweeter without muffling it.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy 4Ω\u003c\/h3\u003e\n\n\u003cp\u003eImpedance sets how much current a speaker asks of the amplifier. A 4Ω speaker draws less than a 2Ω speaker at the same voltage, and when a speaker is bridged across two channels, each channel sees half its impedance. The 4Ω rating is what makes bridging safe on 2Ω-stable amps such as the \u003ca href=\"\/products\/cicada-audio-flx700-4-4-channel-motorcycle-amplifier\"\u003eFLX700.4\u003c\/a\u003e (350W × 2 bridged). In stereo, it lets an amp like the \u003ca href=\"\/products\/cicada-audio-flx2000-4-4-channel-motorcycle-amplifier\"\u003eFLX2000.4\u003c\/a\u003e (331W × 4 at 4Ω) run four speakers without working at its lowest load.\u003c\/p\u003e\n\n\u003ch3\u003eCrossover and Tuning\u003c\/h3\u003e\n\n\u003cp\u003eAn external 12dB-per-octave crossover splits each speaker's signal at 4kHz, in a custom-tooled, vented housing with a heatsink-encased resistor for the –3dB and –6dB tweeter settings. The amplifier's high-pass filter protects the cone from deep bass: set it at 120Hz or higher at 24dB per octave.\u003c\/p\u003e\n\n\u003ch3\u003eMounting\u003c\/h3\u003e\n\n\u003cp\u003eMounting depth is 67mm (2.64\") and the published mounting diameter is 144mm (5.67\"). Cicada lists the CHX525PRO for 1998–2013 Harley-Davidson fairings and 2014+ Indian® fairings.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDriver Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.25\" (133mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Handling – RMS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Handling – Peak\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e92dB (1W\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75Hz – 20kHz (±3dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended High-Pass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120Hz minimum at 24dB per octave\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Crossover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal 12dB per octave @ 4kHz – custom tooled, vented, encased\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTweeter Attenuation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–3dB \/ –6dB (heatsink-encased resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil – Mid-Bass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38.1mm (1.5\") – TIL composite former, flat-wound copper, Black Coat™ resin\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil – Tweeter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25.4mm (1.0\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-grade neodymium (N45SH)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCone\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarbon Matrix Composite™ (CMC™)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurround\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow-profile cloth\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTweeter Dome\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminium, horn-loaded\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHorn Cover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNanofram™ – removable threaded horn flange\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCustom-tooled diecast aluminium with Vortex Flow Venting™\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e67mm (2.64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e144mm (5.67\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1998–2013 H-D® fairings; 2014+ Indian® Chieftain®, Roadmaster®, Challenger® and Pursuit®\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeather Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRain or Shine Pro™ – UV and moisture resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSold As\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003c\/p\u003e\n\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × CHX525.4PRO 5.25\" PRO coaxial horn speakers\u003c\/li\u003e\n  \u003cli\u003e2 × external 12dB crossovers with –3dB \/ –6dB tweeter attenuation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cicada Audio","offers":[{"title":"Default Title","offer_id":51234071183607,"sku":"CHX525.4PRO","price":1195.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6505\/1639\/files\/coming_soon_placeholder_2976fd29-fc27-485d-b6c6-db3ce7ce446a.png?v=1790730596","url":"https:\/\/www.motorcycleaudio.com.au\/products\/cicada-audio-chx525-4pro-5-25-pro-coaxial-horn-speakers","provider":"Motorcycle Audio Australia","version":"1.0","type":"link"}