{"product_id":"cicada-audio-rr3wg-8f-8-inch-flat-acoustic-waveguide","title":"Cicada Audio RR3WG-8F 8-inch Flat Acoustic Waveguide","description":"\u003ch2\u003eThe 8-inch flat waveguide for RR2TM \u0026amp; RR3TM motors — maximum throw, biggest horn mouth in the flat series, for Tour-Pak, fairing, and custom enclosure builds\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cicada Audio RR3WG-8F is an 8-inch flat acoustic waveguide for Cicada Audio's \u003ca href=\"\/products\/rr2tm\"\u003eRR2TM\u003c\/a\u003e and \u003ca href=\"\/products\/cicada-audio-rr3tm-3-inch-ring-radiator-tweeter-motor\"\u003eRR3TM\u003c\/a\u003e compression driver motors. Sold as a pair, it provides the largest horn mouth in the flat waveguide series — producing greater acoustic loading, higher efficiency, and more forward throw than any of the 6×9\" formats. For riders building big front stages, Tour-Pak installs, fairing pods, or custom enclosures where the 6×9\" footprint is a constraint rather than a requirement, the RR3WG-8F is the step up.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe 8-inch format addresses a different set of install positions than the 6×9\" waveguide series. Where the \u003ca href=\"\/products\/cicada-audio-rr3wg-69f-6x9-flat-acoustic-waveguide\"\u003eRR3WG-69F\u003c\/a\u003e, \u003ca href=\"\/products\/cicada-audio-rr3wg-69a-6x9-angled-acoustic-waveguide\"\u003eRR3WG-69A\u003c\/a\u003e, and \u003ca href=\"\/products\/cicada-audio-rr3wg-69s-6x9-shallow-acoustic-waveguide\"\u003eRR3WG-69S\u003c\/a\u003e are built around the standard saddlebag lid cutout, the RR3WG-8F opens up Tour-Pak positions, large fairing pods, and enclosures where you're not constrained to a 6×9\" opening. The larger mouth delivers more horn efficiency and more long-range throw from the same motor — the right choice when your install allows it.\u003c\/p\u003e\n\n\u003ch3\u003eWho This Is For\u003c\/h3\u003e\n\u003cp\u003eRiders building a high-output horn system in a Tour-Pak, custom fairing pod, or bespoke enclosure where an 8-inch cutout is achievable and maximum projection is the goal. The RR3WG-8F pairs with both the \u003ca href=\"\/products\/rr2tm\"\u003eRR2TM\u003c\/a\u003e and \u003ca href=\"\/products\/cicada-audio-rr3tm-3-inch-ring-radiator-tweeter-motor\"\u003eRR3TM\u003c\/a\u003e — use the RR2TM if you want a capable, cost-effective system; use the \u003ca href=\"\/products\/cicada-audio-rr3tm-3-inch-ring-radiator-tweeter-motor\"\u003eRR3TM\u003c\/a\u003e for maximum output and the 110dB sensitivity advantage at full-range highway speed. If your install is a standard saddlebag lid, the 6×9\" series is the correct fit — start with the \u003ca href=\"\/products\/cicada-audio-rr3wg-69f-6x9-flat-acoustic-waveguide\"\u003eRR3WG-69F\u003c\/a\u003e for full-depth flat positions.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Is Best For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum throw and forward projection in the series\u003c\/strong\u003e — Horn mouth area directly determines acoustic coupling efficiency and the distance at which the system remains audible. An 8-inch mouth is substantially larger than any 6×9\" footprint — the coupling efficiency increase translates into greater forward throw at equivalent power. \u003cem\u003eOn the road: at sustained highway speeds where wind noise is loudest and the distance from the speaker to the helmet is greatest, the RR3WG-8F projects further and cleaner than a 6×9\" waveguide running the same motor.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eHigher acoustic efficiency from the same motor\u003c\/strong\u003e — Larger mouth area means the horn loads the air more efficiently. The acoustic impedance transformation from motor exit to radiating face is greater, which extracts more acoustic output per watt from the compression driver. \u003cem\u003eOn the road: the amplifier can run at a lower output level for equivalent perceived loudness — useful in systems where thermal management or dynamic headroom is a priority.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eTour-Pak and custom enclosure fitment\u003c\/strong\u003e — The 8-inch format opens up mounting positions that the 6×9\" series can't reach — Tour-Pak lid positions, custom fairing pods, bespoke enclosure builds, and larger-format aftermarket lid kits. For serious custom builds where the enclosure dimensions aren't dictated by a stock lid cutout, the RR3WG-8F provides the most capable flat waveguide option in the range. \u003cem\u003eOn the road: a Tour-Pak install running RR3WG-8F waveguides with RR3TM motors produces a rear-stage horn system that projects forward past the rider rather than dispersing sideways off the bike.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eBroad horizontal dispersion, controlled vertical output\u003c\/strong\u003e — The flat 8-inch face produces a wide horizontal spread — covering rider and passenger across a broad listening arc — while the horn geometry maintains enough vertical pattern control to keep energy focused at the seat rather than projecting into the air. \u003cem\u003eOn the road: consistent coverage from both Tour-Pak positions simultaneously produces a wide, stable soundstage rather than two point sources that each sound louder when you're directly on their axis.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003ePrecision-matched throat geometry for RR2TM \u0026amp; RR3TM\u003c\/strong\u003e — Throat dimensions are engineered to the exit diameter of both the ferrite RR2TM and neodymium RR3TM motors, ensuring correct acoustic loading for both. Correct loading maximises sensitivity, extends usable frequency range, and keeps response smooth across the operating band. \u003cem\u003eOn the road: run the RR2TM now and upgrade to the RR3TM later — the waveguide loads correctly with both motors, no crossover or EQ changes required.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eLow-distortion acoustic path\u003c\/strong\u003e — The smooth internal flare geometry and precision wave-shaping minimise internal reflections and turbulence that would otherwise produce colouration at high output levels. A well-designed 8-inch horn maintains clean acoustic behaviour at the extreme volume levels that a high-sensitivity compression motor can generate. \u003cem\u003eOn the road: pushed hard at highway speeds, the output stays clean and controlled rather than developing the hardness or harshness that poorly-designed large horns exhibit at maximum output.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eAll-weather composite construction\u003c\/strong\u003e — Built from UV-stable, moisture-resistant composite materials formulated for powersports environments. Tour-Pak positions and fairing pods see the same sun, rain, and temperature cycling that saddlebag lids do — the RR3WG-8F is built to last in all of them. \u003cem\u003eOn the road: no warping in Australian summer heat, no cracking in winter, no rattles from road vibration — acoustically and dimensionally consistent over the life of the install.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eNanofram™ compatible\u003c\/strong\u003e — Accepts Cicada Audio's Nanofram™ horn cover for additional weather protection in high-exposure installs. \u003cem\u003eOn the road: for marine, open-cab UTV, or exposed custom pod positions — add Nanofram™ for a physical seal at the horn mouth without meaningful acoustic penalty.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"maa-alert\"\u003e\n\u003ch3\u003eRR3WG-8F vs. the 6×9\" waveguide series — choosing the right format\u003c\/h3\u003e\n\u003cp\u003eThe RR3WG-8F works with the same RR2TM and RR3TM motors as the 6×9\" series. The decision between formats is driven by your install position and available cutout size. The \u003cstrong\u003eRR3WG-8F\u003c\/strong\u003e is for Tour-Pak, custom fairing pods, and bespoke enclosures where an 8-inch cutout is achievable and you want maximum efficiency and throw. If you're working with a standard saddlebag lid, the 6×9\" series is the correct starting point: \u003ca href=\"\/products\/cicada-audio-rr3wg-69f-6x9-flat-acoustic-waveguide\"\u003eRR3WG-69F (flat)\u003c\/a\u003e for full-depth positions, \u003ca href=\"\/products\/cicada-audio-rr3wg-69a-6x9-angled-acoustic-waveguide\"\u003eRR3WG-69A (angled)\u003c\/a\u003e where the driver needs redirecting toward the rider, or \u003ca href=\"\/products\/cicada-audio-rr3wg-69s-6x9-shallow-acoustic-waveguide\"\u003eRR3WG-69S (shallow)\u003c\/a\u003e for depth-constrained lids. The RR3WG-8F is not a drop-in for a 6×9\" cutout.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eThe Bottom Line\u003c\/h3\u003e\n\u003cp\u003eThe RR3WG-8F is the highest-output flat waveguide in the Cicada range — the 8-inch mouth produces more acoustic coupling efficiency, more forward throw, and a wider dispersion pattern than any 6×9\" format from the same motor. For riders building in Tour-Pak, fairing pod, or custom enclosure positions where maximum projection is the objective, this is the waveguide to run. Pair it with the \u003ca href=\"\/products\/cicada-audio-rr3tm-3-inch-ring-radiator-tweeter-motor\"\u003eRR3TM\u003c\/a\u003e for a 110dB horn system, or the \u003ca href=\"\/products\/rr2tm\"\u003eRR2TM\u003c\/a\u003e for a capable, cost-effective alternative. Available at MAA as Australia's authorised Cicada Audio dealer.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e5e5e5; background: #f5f5f5; text-align: left;\"\u003ePosition\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e5e5e5; background: #f5f5f5; text-align: left;\"\u003eModels\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e5e5e5; background: #f5f5f5; text-align: left;\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eTour-Pak\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eHarley-Davidson Touring with Tour-Pak\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e8-inch cutout required; requires RR2TM or RR3TM motor (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eFairing Pods\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eCustom fairing pods and enclosures\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eFor builds where an 8-inch footprint is achievable in the fairing position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eCustom Enclosures\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eBespoke builds, UTV, marine\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eAny application with an 8-inch cutout where maximum horn efficiency is the goal\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\u003cp\u003eThe RR3WG-8F operates on the same horn-loading principle as the rest of the Cicada waveguide range — converting the narrow, high-pressure exit of a compression driver into a broad, controlled, high-efficiency radiated signal. The key difference from the 6×9\" series is mouth area: the 8-inch format provides substantially more radiating surface, which improves the acoustic impedance transformation from motor exit to radiated field. More efficient impedance transformation means more SPL per watt and greater long-range projection from the same motor.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eOn the road: the RR3WG-8F makes the most of both the RR2TM and RR3TM's output — more of the motor's acoustic energy is projected forward as usable sound rather than lost to reflections or poor coupling at the horn exit.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003e8-inch Horn Mouth — Why Size Matters\u003c\/h3\u003e\n\u003cp\u003eHorn efficiency increases as mouth area increases, up to the point where the mouth circumference equals one wavelength at the lowest operating frequency. For a tweeter motor crossing over at 3kHz, this means the horn is well within its efficient operating regime across the full 8-inch face — all of that mouth area is doing productive acoustic work. The larger face also increases the directional control factor: a bigger mouth can project a tighter beam at a given frequency, which at 8 inches across means strong forward projection while still maintaining wide horizontal spread across the listening arc.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: more mouth area at the same motor output level produces higher measured SPL at distance — the sound travels further before dropping below the ambient wind and road noise floor, which is exactly the challenge on a touring bike at highway speed.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSmooth Internal Flare Geometry\u003c\/h3\u003e\n\u003cp\u003eThe internal acoustic path follows a smooth, optimised flare from the throat to the mouth. Smooth flare contours reduce internal reflections and acoustic turbulence that would otherwise generate colouration and distortion — particularly at high output levels where the pressure differential across the horn is greatest. The wave-shaping geometry ensures consistent pressure distribution across the full 8-inch mouth face, which keeps the dispersion pattern even and avoids the hot-spots or nulls that poorly-designed large horns can develop.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: at sustained high volume levels — where the RR3TM's 300W RMS power handling can deliver genuinely extreme SPL — the RR3WG-8F maintains clean, low-distortion output rather than hardening as the acoustic path becomes non-linear.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThroat Geometry \u0026amp; Motor Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe throat is precision-matched to the exit diameter of both the \u003ca href=\"\/products\/rr2tm\"\u003eRR2TM\u003c\/a\u003e (2-inch ferrite) and \u003ca href=\"\/products\/cicada-audio-rr3tm-3-inch-ring-radiator-tweeter-motor\"\u003eRR3TM\u003c\/a\u003e (3-inch neodymium) compression motors. Throat-to-flare geometry determines acoustic loading — the relationship between motor exit pressure and horn flare rate controls sensitivity, power handling, and frequency extension. The RR3WG-8F's geometry is calculated to load both motors within their optimal operating range, maximising output and maintaining smooth response regardless of which motor is installed.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: upgrade from RR2TM to RR3TM without replacing the waveguides — the acoustic loading is correct for both, and the performance difference between motors is immediately audible without needing to re-tune the system.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eHorizontal vs. Vertical Dispersion\u003c\/h3\u003e\n\u003cp\u003eThe flat 8-inch face produces a wide horizontal dispersion pattern — ensuring even coverage across both rider and passenger across a broad seating arc — while the horn geometry maintains controlled vertical output to avoid wasting energy above and below the listening zone. On a motorcycle in open air, this directional control is the difference between a system that sounds loud and a system that sounds present and clear at the seat. The RR3WG-8F's dispersion characteristics are optimised for the touring motorcycle geometry: broad enough laterally to cover two riders, controlled enough vertically to keep energy aimed at head height.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: both helmets receive consistent, even high-frequency coverage at highway speed — no hot-spot if you're directly in front of one waveguide, no drop-off if you're offset from the centreline.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eAll-Weather Composite Construction\u003c\/h3\u003e\n\u003cp\u003eMoulded from UV-stable, moisture-resistant composite materials formulated specifically for powersports durability. Tour-Pak and fairing pod positions see the full range of outdoor environmental exposure — rain, direct solar radiation, engine heat, and road vibration continuously. The composite formulation maintains dimensional stability through temperature cycles, resisting the warping and cracking that affects standard plastics in these conditions. Dimensional accuracy is essential for horn performance: a waveguide that loses its shape loses its acoustic properties.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: the waveguide that came out of the box performs identically after three years of Australian touring conditions — no shape change from heat, no surface degradation from UV, no rattles from vibration fatigue.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eNanofram™ Compatibility\u003c\/h3\u003e\n\u003cp\u003eFully compatible with Cicada Audio's Nanofram™ horn cover system. Nanofram™ provides a physical barrier against direct water ingress at the horn mouth while maintaining minimal acoustic impact on the radiated output. For Tour-Pak and fairing pod positions that see regular rain, or for marine and UTV applications, Nanofram™ provides the additional weather protection layer beyond what the composite housing alone provides.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOn the road: add Nanofram™ for maximum weather protection in high-exposure installs; the acoustic difference is minimal in the motor's operating frequency range above 3kHz, and the physical protection is real.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e5e5e5; background: #f5f5f5; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #e5e5e5; background: #f5f5f5; text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eFormat\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e8-inch Flat Acoustic Waveguide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eCompatible Motors\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eRR2TM (2\" Ferrite), RR3TM (3\" Neodymium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eMounting Format\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003e8-inch standard footprint, flat profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eDispersion\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eWide horizontal, controlled vertical — maximum forward projection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eAll-weather composite (UV, moisture, heat and vibration resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eNanofram™ Compatible\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003eSold As\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e5e5e5;\"\u003ePair (2 waveguides)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"Cicada Audio","offers":[{"title":"Default Title","offer_id":50850599239927,"sku":"RR3WG-8F","price":380.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6505\/1639\/files\/RR3WG-8F-2-Edited_d89bf04a-0f5e-49fd-beb6-c0a65a10ccc4.png?v=1781152782","url":"https:\/\/www.motorcycleaudio.com.au\/products\/cicada-audio-rr3wg-8f-8-inch-flat-acoustic-waveguide","provider":"Motorcycle Audio Australia","version":"1.0","type":"link"}