{"product_id":"martin-audio-q15-b-15-passive-two-way-loudspeaker","title":"Martin Audio Q15-B – 15\" Passive Two-Way Loudspeaker","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Martin Audio Blackline Q15 (model Q15-B) is a 15-inch passive two-way loudspeaker engineered for high-output portable sound reinforcement and permanent, commercial-grade install work. A user-rotatable Differential Dispersion horn works with a 380 mm LF driver to deliver 133 dB peak SPL and wide, consistent coverage from a single enclosure. It is a practical main or infill choice for AV integrators specifying audio in houses of worship, auditoriums, and multi-purpose commercial rooms. As an 8-ohm passive loudspeaker, the Q15-B integrates with a standard amplifier and system processor for predictable, repeatable deployments.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/Q15-main.png?v=1783700596\" alt=\"Martin Audio Blackline Q15 passive loudspeaker with rotatable Differential Dispersion horn\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Q15-B is the highest-output model in Martin Audio's next-generation BlacklineQ series, pairing a 15\" (380 mm) low-frequency driver with a 4\" (102 mm) voice coil and a 1.4\" (35 mm) exit HF compression driver on a 3\" (75 mm) dome. The rotatable Differential Dispersion horn lets integrators switch the enclosure between horizontal and vertical orientation, tapering horizontal coverage from 70° to 90° to even out near- and far-field levels across an audience. A die-cast aluminium chassis improves thermal conductivity and motor cooling for sustained output during long events. Rated at 800 W AES (3200 W peak) into an 8-ohm load, this passive two-way loudspeaker reaches 127 dB continuous and 133 dB peak SPL. The symmetrical multi-angle plywood enclosure supports floor-monitor angles as well as upright PA placement, making it a flexible portable PA loudspeaker for rental and production inventories. For fixed installs, 18 M8 inserts plus a dedicated set of 6 for wall brackets accept yoke, eyebolt, or wall-bracket mounting, while a pole-mount socket with a removable cover keeps sightlines clean. Two NL4 connectors handle input and daisy-chain linking between cabinets. Martin Audio recommends driving the Q15-B with a DX-series processor and VIA amplifier, or an iKON combined amplifier-processor, to load the correct presets and driver protection. Typical deployments include main PA and infill for live music, corporate AV events, and houses of worship, plus foreground audio in commercial meeting spaces. The system pairs naturally with a Blackline Q118 or Q218 subwoofer when full-range low-frequency extension is required. Integrators comparing compact install options can also review the Martin Audio \u003ca href=\"https:\/\/creationnetworks.net\/products\/martin-audio-cdd10b-speaker-black\"\u003eCDD10B on-wall loudspeaker\u003c\/a\u003e and the transformer-equipped \u003ca href=\"https:\/\/creationnetworks.net\/products\/martin-audio-cdd10tx-cdd10-speaker-with-70v-100v-transformer-black\"\u003eCDD10BTX 70V\/100V speaker\u003c\/a\u003e for distributed commercial systems.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/Q15.png?v=1783700596\" alt=\"Martin Audio Blackline Q15 dimensional line drawing showing enclosure measurements\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15\" high-output LF driver\u003c\/strong\u003e — A 380 mm woofer with a 4\" voice coil delivers deep, high-SPL low end for demanding rooms and open-air infill.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotatable Differential Dispersion horn\u003c\/strong\u003e — Horizontal coverage tapers from 70° to 90° and the horn reorients for vertical or horizontal cabinet placement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e133 dB peak output\u003c\/strong\u003e — The system produces 127 dB continuous and 133 dB peak (139 dB with crest factor 4) for large-audience reinforcement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDie-cast aluminium chassis\u003c\/strong\u003e — Improves thermal conductivity and motor cooling to sustain output across long events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-ohm passive design\u003c\/strong\u003e — Integrates with standard amplifier and processor rigs for straightforward AV system integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible rigging and mounting\u003c\/strong\u003e — M8 inserts accept yoke, eyebolt, and wall-bracket hardware, with a pole-mount socket for portable use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual NL4 connectors\u003c\/strong\u003e — Provide secure input and pass-through linking between enclosures in multi-cabinet setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-angle plywood enclosure\u003c\/strong\u003e — Doubles as a stage monitor and upright PA cabinet in a rugged black textured finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHouse of worship main PA and foreground audio\u003c\/li\u003e\n\u003cli\u003eAuditorium sound reinforcement\u003c\/li\u003e\n\u003cli\u003eMulti-purpose room\u003c\/li\u003e\n\u003cli\u003eAll-hands room\u003c\/li\u003e\n\u003cli\u003eTraining room\u003c\/li\u003e\n\u003cli\u003eConference room and commercial meeting space audio\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;min-width:520px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003ePassive two-way loudspeaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e51 Hz – 17 kHz ±3 dB (–10 dB @ 41 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eLF Driver\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e15\" (380 mm) with 4\" (102 mm) voice coil, ferrite motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eHF Driver\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e1.4\" (35 mm) exit compression driver, 3\" (75 mm) voice coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eRated Power\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e800 W AES, 3200 W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e98 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eMaximum SPL\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e127 dB continuous, 133 dB peak (139 dB with crest factor 4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e8 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eDispersion\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e70°–90° (H) × 50° (V), user-rotatable Differential Dispersion horn\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eCrossover\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e1.5 kHz passive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eEnclosure\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eSymmetrical multi-angle plywood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eBlack textured paint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eProtective Grille\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eBlack perforated steel grille with scrim cloth backing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eConnectors\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e2 × NL4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eFittings\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e18 × M8 inserts, 6 × M8 for wall bracket, pole-mount socket with cover, 2 × recycled-ABS handles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eDimensions (W × H × D)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e420 × 695 × 400 mm (16.5 × 27.4 × 15.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e33.8 kg (74.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;font-weight:bold;\"\u003eRecommended Electronics\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eDX0.4 \/ DX0.6 \/ DX4.0 processor + VIA amplifier, or iKON amplifier-processor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat amplification and processing does the Q15-B require?\u003c\/strong\u003e\u003cbr\u003eThe Q15-B is a passive loudspeaker, so it needs an external amplifier and system processor. Martin Audio recommends a DX0.4, DX0.6, or DX4.0 processor paired with a VIA amplifier, or an iKON combined amplifier-processor, to load the correct presets and driver protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Q15-B be flown or wall-mounted for a permanent installation?\u003c\/strong\u003e\u003cbr\u003eYes. The enclosure provides 18 M8 inserts plus 6 dedicated M8 inserts for wall brackets, accepting the optional WB15 wall bracket, Q15YP yoke, or HTKCT05 M8 eyebolts for suspension. A pole-mount socket with a removable cover supports portable use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Q15-B rated for outdoor installation?\u003c\/strong\u003e\u003cbr\u003eThe Q15-B uses a plywood enclosure with black textured paint and is not IP-rated for weather exposure. For semi-exposed or outdoor commercial zones, consider a weatherized model such as the Martin Audio \u003ca href=\"https:\/\/creationnetworks.net\/products\/martin-audio-cdd10-br-ip54-weatherized-cdd10-speaker-black\"\u003eCDD10B-WR IP54 outdoor loudspeaker\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich subwoofer pairs with the Q15-B?\u003c\/strong\u003e\u003cbr\u003eFor full-range low-frequency extension, the Q15-B is designed to integrate with the Blackline Q118 (single 18\") or Q218 (dual 18\") passive subwoofers using matching system presets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the impedance load when linking multiple cabinets?\u003c\/strong\u003e\u003cbr\u003eEach Q15-B presents an 8-ohm nominal load. The two NL4 connectors allow input and pass-through linking; confirm your amplifier's minimum load rating before paralleling multiple enclosures on a single channel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the Q15-B be used as a stage monitor?\u003c\/strong\u003e\u003cbr\u003eYes. The symmetrical multi-angle plywood enclosure includes monitor angles, so the same cabinet serves as unobtrusive stage monitoring or upright front-of-house PA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty and support are available?\u003c\/strong\u003e\u003cbr\u003eThe Q15-B is covered by Martin Audio's manufacturer limited warranty. For warranty registration, specification support, or system design assistance, contact the Creation Networks commercial AV team.\u003c\/p\u003e","brand":"Martin Audio","offers":[{"title":"Default Title","offer_id":47920314188012,"sku":"Q15-B","price":1320.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/566501.jpg?v=1783701186","url":"https:\/\/creationnetworks.net\/products\/martin-audio-q15-b-15-passive-two-way-loudspeaker","provider":"Creation Networks","version":"1.0","type":"link"}