{"product_id":"cicada-audio-cmb69-4-6-9-pro-mid-bass-carbon-matrix-4o","title":"Cicada Audio CMB69.4 — 6×9″ Pro Mid-Bass Carbon Matrix Motorcycle Speakers (4Ω, Pair)","description":"\u003ch2\u003eThe dedicated 6×9\" mid-bass driver for bridged-amp and 4Ω saddlebag builds — CMC™ cone, ceramic motor, Rain or Shine™.\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Cicada Audio CMB69.4 is a dedicated 6×9-inch 4Ω mid-bass driver — 150W RMS, 88 dB sensitivity, Carbon Matrix Composite™ (CMC™) cone, Black Coat™ OFC 1.5-inch voice coil, Y35 ceramic motor, die-cast aluminium basket with Vortex Flow Venting™, and Rain or Shine™ all-weather construction. Frequency response 45 Hz – 1 kHz. Sold in pairs. Requires an active DSP crossover or passive high-pass filter — not for full-range use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA coaxial in the saddlebag lid divides its energy across the full frequency range. At highway speed, the mid-bass goes soft under load and the integrated tweeter takes a beating covering ground it shouldn't. The CMB69.4 takes a different approach: a dedicated mid-bass driver that handles 45 Hz to 1 kHz with authority, freeing a dedicated tweeter to cover the highs cleanly. Pair it with an \u003ca href=\"\/products\/cicada-audio-rr1t-1-inch-ring-radiator-tweeter\"\u003eRR1T ring radiator tweeter\u003c\/a\u003e, run the crossover through a \u003ca href=\"\/products\/dsp412pro-4-input-x-12-output-dsp-processor-w-diald-software\"\u003eDSP412PRO\u003c\/a\u003e or \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e, and you have a two-way rear stage that sounds like a real system. The 4Ω impedance is what sets the CMB69.4 apart from the \u003ca href=\"\/products\/cicada-audio-cmb69-2-6-9-pro-mid-bass-carbon-matrix-2o\"\u003eCMB69.2\u003c\/a\u003e — the correct choice when running a bridged amplifier configuration or building a consistent 4Ω system. For the higher-output pro version with neodymium motor and 94 dB sensitivity, see the \u003ca href=\"\/products\/cicada-audio-cm69-4x-midbass-speakers\"\u003eCM69.4X\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWho This Is For\u003c\/h3\u003e\n\u003cp\u003eRiders building a two-way component rear stage in 6×9-inch saddlebag lid positions who are running a bridged amplifier configuration, or who need a consistent 4Ω impedance across the system. The CMB69.4 is the 4Ω version: when an amplifier bridges two channels to drive a speaker pair, it halves the impedance it sees. A 2Ω speaker on a bridged channel presents a 1Ω load — below safe operating limits for most amplifiers. The CMB69.4 presents a 2Ω load on a bridged channel, within the rated minimum for quality motorcycle amplifiers. For standard stereo configurations with a dedicated 2Ω-stable amplifier, the \u003ca href=\"\/products\/cicada-audio-cmb69-2-6-9-pro-mid-bass-carbon-matrix-2o\"\u003eCMB69.2 (2Ω)\u003c\/a\u003e delivers rated output with less current demand per channel. For riders who want a single coaxial in the same saddlebag position, the \u003ca href=\"\/products\/cicada-audio-chx69-4-pro-coaxial-horn-speakers\"\u003eCHX69.4\u003c\/a\u003e includes the horn tweeter and crossover in one package. For the highest-output dedicated mid-bass build in the 6×9-inch position — neodymium motor, 94 dB, 250W RMS — step up to the \u003ca href=\"\/products\/cicada-audio-cm69-4x-midbass-speakers\"\u003eCM69.4X\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Is Best For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBridged-amp rear stage builds\u003c\/strong\u003e — when the amplifier bridges two channels for the rear stage, it needs a minimum 2Ω load per pair to operate safely. The CMB69.4 at 4Ω presents exactly that — 2Ω on a bridged channel — within the safe operating range for amplifiers including the \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e and \u003ca href=\"\/products\/cicada-audio-flx1400-4p-4-channel-dsp-pro-amplifier\"\u003eFLX1400.4PRO\u003c\/a\u003e. Running a 2Ω driver bridged would present a 1Ω load — a configuration that exceeds safe operating limits for most amplifiers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-way component rear stage with DSP crossover\u003c\/strong\u003e — the CMB69.4 in the saddlebag lid opening, crossed over actively and paired with a dedicated ring radiator tweeter. The \u003ca href=\"\/products\/cicada-audio-rr1t-1-inch-ring-radiator-tweeter\"\u003eRR1T\u003c\/a\u003e or \u003ca href=\"\/products\/cicada-audio-rr075t-0-75-inch-ring-radiator-tweeter\"\u003eRR075T\u003c\/a\u003e handles the highs; the CMB69.4 handles the mid-bass with a dedicated driver that isn't simultaneously managing tweeter frequencies. The \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e and \u003ca href=\"\/products\/cicada-audio-flx1400-4p-4-channel-dsp-pro-amplifier\"\u003eFLX1400.4PRO\u003c\/a\u003e provide DSP crossover control for both channels from a single unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConsistent 4Ω system builds\u003c\/strong\u003e — in builds where the front fairing speakers are 4Ω — \u003ca href=\"\/products\/cicada-audio-cx65-4-6-5-inch-motorcycle-coaxial-speakers\"\u003eCX65.4\u003c\/a\u003e, \u003ca href=\"\/products\/cicada-audio-cxx65-4-motorcycle-coaxial-speakers\"\u003eCXX65.4\u003c\/a\u003e — the CMB69.4 keeps the full system at a consistent 4Ω, simplifying amplifier channel assignment and thermal management across a four-channel amplifier running stereo or bridged.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter amplifier thermal margin\u003c\/strong\u003e — a 4Ω load draws less current from the amplifier than a 2Ω load at the same volume. In sustained high-temperature conditions — a full touring day in summer — the reduced current demand at 4Ω keeps the amplifier cooler and extends operating headroom before thermal protection activates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLower-bass extension in the saddlebag\u003c\/strong\u003e — the CMB69.4's 45 Hz lower limit provides more extension into the bass region than a standard fairing coaxial. Managed correctly by DSP crossover in the sealed saddlebag enclosure, the driver delivers genuine mid-bass foundation from the rear stage without a dedicated subwoofer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"maa-alert\"\u003e\n  \u003ch3\u003e⚠️ Crossover Required — This Driver Will Be Damaged Without One\u003c\/h3\u003e\n  \u003cp\u003eThe CMB69.4 is a dedicated mid-bass driver and must not be run full-range. Operating this driver without a high-pass crossover in a sealed saddlebag enclosure will cause over-excursion and permanent damage — the limited internal air volume of the saddlebag lid cannot support low-frequency excursion at the driver's lower limit.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eHigh-pass crossover settings required:\u003c\/strong\u003e\u003cbr\u003e\n  General: 80–250 Hz @ 12–24 dB\/octave minimum.\u003cbr\u003e\n  Saddlebag and enclosed installations: 250 Hz @ 24 dB\/octave, or 300 Hz @ 12 dB\/octave minimum.\u003cbr\u003e\n  Lower crossover settings in a sealed enclosure will cause distortion and damage.\u003c\/p\u003e\n  \u003cp\u003eAn active DSP crossover is strongly recommended — the \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e, \u003ca href=\"\/products\/cicada-audio-flx1400-4p-4-channel-dsp-pro-amplifier\"\u003eFLX1400.4PRO\u003c\/a\u003e, or \u003ca href=\"\/products\/dsp412pro-4-input-x-12-output-dsp-processor-w-diald-software\"\u003eDSP412PRO\u003c\/a\u003e all provide the required crossover control. A passive high-pass filter at the correct frequency is the minimum acceptable alternative. Contact MAA before ordering if you are unsure about crossover setup in your system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eThe Bottom Line\u003c\/h3\u003e\n\u003cp\u003eA dedicated 6×9-inch 4Ω mid-bass driver with CMC™ cone construction, Black Coat™ OFC voice coil, and Rain or Shine™ all-weather build — the correct choice for bridged-amp rear stage configurations and 4Ω system builds in the saddlebag lid position. Pair with an RR-series ring radiator tweeter and a DSP crossover for a two-way rear stage that performs at highway speed. For standard stereo 2Ω builds, see the \u003ca href=\"\/products\/cicada-audio-cmb69-2-6-9-pro-mid-bass-carbon-matrix-2o\"\u003eCMB69.2\u003c\/a\u003e. For the highest-output version of this build, step up to the \u003ca href=\"\/products\/cicada-audio-cm69-4x-midbass-speakers\"\u003eCM69.4X\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAdd to cart above. Contact MAA to configure a matched two-way system — mid-bass, tweeter, amplifier, and DSP — around the CMB69.4.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary position:\u003c\/strong\u003e 6×9-inch saddlebag lid speaker openings — factory and aftermarket saddlebag lids on Street Glide® and Road Glide® platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom enclosures:\u003c\/strong\u003e Any enclosure designed around the 145 × 216mm (5.7\" × 8.5\") mounting footprint and 99mm (3.9\") mounting depth.\u003c\/li\u003e\n  \u003cli\u003eRequires an active DSP or passive high-pass crossover — see alert above for required settings.\u003c\/li\u003e\n  \u003cli\u003eRequires a dedicated external amplifier — \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e, \u003ca href=\"\/products\/cicada-audio-flx1400-4p-4-channel-dsp-pro-amplifier\"\u003eFLX1400.4PRO\u003c\/a\u003e, \u003ca href=\"\/products\/cicada-audio-flx1400-4-4-channel-motorcycle-amplifier\"\u003eFLX1400.4\u003c\/a\u003e, or any 4Ω-compatible motorcycle amplifier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr class=\"maa-tab-split\"\u003e\n\n\u003ch3\u003eWhat's Inside the CMB69.4\u003c\/h3\u003e\n\n\u003cp\u003eThe cone is \u003cstrong\u003eCarbon Matrix Composite™ (CMC™)\u003c\/strong\u003e — a lightweight composite that maintains rigidity and dimensional stability across the temperature range a saddlebag speaker experiences in Australian riding conditions. The \u003cstrong\u003e1.5-inch \/ 38mm Black Coat™ OFC copper voice coil\u003c\/strong\u003e handles sustained 150W RMS with high conductivity and low resistance. As a dedicated mid-bass driver running between the high-pass crossover point and 1 kHz, the CMC™ cone's rigidity keeps its mechanical behaviour consistent across a full day's riding at output. \u003cem\u003eOn the road: defined, consistent mid-bass from the saddlebag lid position whether you're on the first kilometre of the day or the five hundredth.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe motor is a \u003cstrong\u003eY35 ceramic magnet\u003c\/strong\u003e — a thermally stable motor structure that provides the field strength required for mid-bass output at 150W RMS. The \u003cstrong\u003eRibbed Santoprene® high roll surround\u003c\/strong\u003e resists UV, moisture, and the temperature cycling of an outdoor motorcycle environment without the compliance degradation that foam surrounds develop over time. \u003cem\u003eOn the road: consistent mechanical behaviour through seasonal temperature swings — a saddlebag speaker that performs the same way in a Queensland summer as it did when it was installed.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003edie-cast aluminium basket with Vortex Flow Venting™\u003c\/strong\u003e channels airflow through the motor assembly. In a sealed saddlebag lid enclosure where ambient temperature is high and ventilation is limited, thermal management at the basket level extends operating time at sustained output. No tweeter or crossover is included — the CMB69.4 is designed to operate as the mid-bass element of a two-way component system, with crossover management handled at the amplifier or DSP level.\u003c\/p\u003e\n\n\u003ch3\u003eWhy a Dedicated Mid-Bass Driver\u003c\/h3\u003e\n\n\u003cp\u003eA coaxial speaker in a saddlebag lid handles the full frequency range from one driver. Under sustained load at highway speed, the mid-bass cone works hard across its full excursion range while the integrated tweeter simultaneously reproduces high frequencies from the same motor. At volume, the result is thermal compression affecting both frequency ranges — the output softens, imaging collapses, and the tweeter absorbs low-frequency energy it isn't designed for.\u003c\/p\u003e\n\n\u003cp\u003eThe CMB69.4 operates from 45 Hz to 1 kHz — the frequency range where the punch, warmth, and body of audio lives at highway speed. Crossed over correctly with a dedicated tweeter, each driver handles only the band it is designed for. The CMB69.4's voice coil and cone manage mid-bass excursion without simultaneously producing high frequencies; the tweeter reproduces highs without low-frequency content pushing against it. \u003cem\u003eOn the road: a rear stage that maintains definition and clarity at the volume levels needed to hear it at highway speed — not the softening and congestion of a coaxial being pushed past its comfort zone.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy 4Ω — Bridged Amps and Thermal Margin\u003c\/h3\u003e\n\n\u003cp\u003eWhen an amplifier runs in bridged mode, it combines two channels to drive a single speaker pair with more power. The trade-off is that bridging halves the impedance the amplifier sees — a 4Ω speaker on a bridged channel presents a 2Ω load. Most quality amplifiers including the \u003ca href=\"\/products\/cicada-audio-flx700-4pro-ultra-compact-4-channel-dsp-amplifier\"\u003eFLX700.4PRO\u003c\/a\u003e and \u003ca href=\"\/products\/cicada-audio-flx1400-4p-4-channel-dsp-pro-amplifier\"\u003eFLX1400.4PRO\u003c\/a\u003e are rated at 2Ω minimum in bridged mode. Running a 2Ω speaker bridged would present a 1Ω load — below safe operating limits for most amplifiers, and a configuration that risks amplifier damage under sustained load. The CMB69.4 is the correct mid-bass driver for any bridged rear-stage configuration.\u003c\/p\u003e\n\n\u003cp\u003eAt 4Ω in a standard stereo configuration, the CMB69.4 also gives the amplifier more thermal headroom — less current demand, less heat, more margin for sustained operation. For long touring days in hot conditions, the 4Ω configuration is the more conservative choice. For maximum output from a dedicated 2Ω-stable amplifier running in stereo, the \u003ca href=\"\/products\/cicada-audio-cmb69-2-6-9-pro-mid-bass-carbon-matrix-2o\"\u003eCMB69.2 (2Ω)\u003c\/a\u003e is the higher-output option per channel.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeaker Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6×9\" dedicated mid-bass\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4Ω\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\u003e150W RMS\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\u003e300W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e88 dB (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\u003e45 Hz – 1 kHz (±3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Coil\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38mm (1.5\") — Black Coat™ OFC copper\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMagnet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eY35 ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCone Material\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\u003eRibbed Santoprene® high roll\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDie-cast 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\u003e99mm (3.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Dimensions (cutout)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e145 × 216mm (5.7\" × 8.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeather Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRain or Shine™ all-weather construction\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCrossover Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — high-pass at 80–250 Hz minimum; 250 Hz @ 24 dB\/oct for sealed saddlebag installations\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePair\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 years through MAA as authorised dealer\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Cicada Audio","offers":[{"title":"Default Title","offer_id":50681238814967,"sku":"CMB69.4","price":680.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6505\/1639\/files\/Cicada-Audio-CMB69_4-6x9-Pro-Mid-Bass-Carbon-Matrix-Motorcycle-Speakers-4O-Pair.webp?v=1779251720","url":"https:\/\/www.motorcycleaudio.com.au\/products\/cicada-audio-cmb69-4-6-9-pro-mid-bass-carbon-matrix-4o","provider":"Motorcycle Audio Australia","version":"1.0","type":"link"}