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M&K150 SERIESAAIn the groundbreaking 150 triple tweeterIdentical Front Surround Arrayarray, the top end is handled by a trio of speciallydesigned high frequency transducers driven togetherMost other surround systems are forced toto operate effectively as a single, compact highcompromise and use a smaller, horizontally mountedfrequency generator.center channel loudspeaker, simply because theirmain monitors are too large to fit beneath a screen.Because the stacked triple tweeters improve powerThe resulting changes in driver size and configurationhandling by distributing energy among threein a desperate attempt to approximate symmetricalindividual drivers at the same time, the multi-elementdispersion from a cigar box compromise ultimateconfiguration also makes possible a lower crossoversystem performance.point than is found in most conventional systems.But thanks to exceptionally compact cabinetIn traditional systems, restricted high frequencydimensions, multi-channel 150 installations canpower handling demands the use of much higheremploy identical loudspeakers across the three frontcrossover points than 2.5 KHz to reduce the loadchannels, ensuring perfect voice-matching for aon the tweeter. Consequently, the crossover pointseamlessly natural, integrated front soundfield.occurs in the critical mid frequency range which mustbe reproduced by both a mid/woofer and a tweeterThe Shortest Path – Direct to Youin combination, with undesirable side effects such asExperimental Studio, DPA Microphones, Copenhagen, Denmarkphase issues and timing problems that compromiseThe carefully calculated third and second orderthe integrity of the midrange.crossover networks employed in the 150 rangeensure a seamless, virtually one-way integration ofAnd, unfortunately, studies have shown that thethe parallel driver stacks. Designed for the shortestcritical 2.5 – 3 kHz midband range is the area inpossible signal path and minimal loss, the crossoverwhich human hearing is most sensitive to sonicis based on select, precision components, includingdeviations and aberrations.large metalized poly capacitors with productiontolerances as low as 5%.Because we expanded our design mandate far“I Fell in Love With The Sound of M&K Loudspeakers”- Mike Draghi, proprietor, The Mix Stage, Burbank, Californiabeyond mere flat frequency response (although theM&K Sound’s exclusive Phase-Focused crossover150 range remains flat to within /-2 dB (average)ensures even, consistent sound coverage throughoutacross the full audio band at typical listeningthe listening area, for both centrally seated listenersdistances), the 150 driver configuration eliminatesand those placed off to the side. Wide horizontalthese issues entirely. Because three tweeters candispersion means a much larger “sweet spot” andhandle more power than one, the crossover pointthe carefully controlled vertical radiation patterncan be substantially lower at 1.5 kHz, resulting in aminimizes reflections from floors and ceilings forsmooth, undetectable transition between woofersultra-sharp imaging.and tweeters.The implementation of robust, meticulously designedand assembled components provides constantThe clearly audible result in every M&K Soundparameters and consistent performance under themonitor is optimal timing between high and lowmost stressful dynamic conditions and temperaturefrequencies and minimal acoustic phase shiftfluctuations.(time delay) for accurate rendering of detail withexceptional transient speed.This is just one aspect of the sophisticated sciencebrought to bear in the development and constructionThe world’s oldest active film studio chooses M&K Sound.- Nordisk Film, Copenhagen, Denmark4Placing the drivers side by side in close proximity reducescabinet size significantly for enhanced structural integrityat no sacrifice in performance. Because all drivers areclose to the edge of the baffle, diffraction phenomena arevirtually eliminated.M&K Sound 150 systems present an almost purelyof the 150 loudspeaker series. No magic, no snakeresistive load to the power amplifier with a minimumoil, just the conscientious application of decades ofimpedance rated at 4 Ohm for fine results with anyacquired knowledge, expertise and experience.quality power amplifier.5

M&K150 SERIESHIGH FREQUENCYREFINEMENT ANDINSIGHTL Coated silk dome with lightweight, copperclad aluminum wiring for low mass and highsensitivityL Vents in high sensitivity, ferrofluid cooled voicecoil for reduced compression at large excursionM&K SOUND PRO TWEETERHaving served the needs ofat all frequencies. Driving threetypical 1” dome tweeter with a resonance frequencyleadingtweetersin the 900 to 1,200 Hz range, this leads to typicalmusicandfilmstudios around the world inalsotogetherensureassuperioronephaseclose dialog for over three decades,characteristics, a unique designM&K Sound knows exactly whatfeature that is a major factor inThe M&K Pro tweeter takes a radically differentis expected and demanded of athe openness and transparencyapproach that allows useable output at a muchhigh frequency drive unit intendedof all M&K Sound models.lower crossover point at no sacrifice in the resolutionfor critical listening in a professionalof finest high frequency micro-details.L Cast aluminum front plate bolted directlyrecording environment.to the magnet system for improved mechanicalPro users require an unblemished, uncoloredstabilityrendering of the sonic event that is naturalIn order to attain the level of mechanical,electricaland crystal clear and never a burden on the ears,L Elimination of built-up captive air massbehind the dome thanks to double flow resistorfoam plug in vented pole piece for enhancedspeed and precision across the high frequencyrangeL Unique low-compression rear chamber tubesfor minimal distortion and controlled transientresponse, especially at the bottom end of thedriver’s rangecrossover frequencies from 2.7 to 3.6 KHz.andacousticLow Compression for Maximum ExtensionperfectionTweeters without a rear chamber normally require ademanded by professionals and homehigher resonance frequency as a consequence of theaudio enthusiasts alike in a high frequencystiff suspension and air cavity behind the dome. Sinceconsistent excellence for hours on end, at high levelsdriver created expressly for an ultra-compact, two-a higher resonance frequency in a tweeter is largelywith extreme reliability. Unscheduled downtime withway monitor, M&K Sound brought the full talent anda direct product of a compressed air mass under theexpensive performers in the studio is simply not anexperience of our skilled engineers to bear on the Prodome, M&K Sound implements five crucial measuresoption.tweeter project.to reduce air compression behind the dome, for aThis is why M&K Sound has been the choice ofMost tweeters will not perform anywhere near theirlower resonance point and extended frequencyprofessionals for over three decades.best, unless crossed over at least two octaves aboveresponse. AADeveloped initially for our market leading self-the fundamental driver resonance frequency. For apowered MPS 2510P and MPS 1611P professionalstudio monitors, the custom designed M&K Soundhigh frequency drive unit applies classic M&K Soundinnovation and attention to detail to eliminate highfrequency smearing and phase/combing anomalies.Polymer coated silk domeThe result is a breakthrough level of high frequencyL Semi-shielded magnet system based on largeresolution and ease of listening worthy of the M&Kferrite double magnet to optimize distribution ofSound brand name.magnetic flux in the air gapThe all-new M&K tweeter breaks away fromthe industry convention of offering drivers withL Calibrated waveguide for controlled directivityand smooth integration with mid/bass de faceplateVented pole piecefor low compressiontheimpedance of the M&K tweeter is designed to matchspecific crossover component values to ensure totalcontrol of the frequency range.Ferrofluid cooled air gapOptimized for implementation in the distinctive 150triple tweeter array, the purpose-built drivers offerextended frequency response (all the way downto 1,000 Hz) with unrestricted power equency coverage of the tweeter eliminates theDouble magnet structurefor shielding andoptimized field strengthDouble disc dampingstructure to eliminaterear chamber reflectionsand unwanted air massloading of the movingdomeneed for a third driver with a complicated, powersucking crossover network.Deftly designed to meld into a single uniform source,the triple tweeter array provides ideal dispersion6Rear chambertransmission tubeMineral damping ofrear chamber7

M&K150 SERIESWaveguide for Even DispersionStep 1: Large, vented air cavitybehind the domeThis requires far tighter production tolerances, butThe M&K Sound Pro tweeter is fitted with a shortAdding a rear chamber tube to the tweeteroffers the bonus of much greater consistency in thewaveguide front plate for well controlled dispersionconstruction places the dome in front of a muchfinal system.characteristics with smooth response both on axislarger air cavity. Through a large vent in the magnetsystem’s pole piece, the internal air pressure loadthat would otherwise build up behind the dome isreleased harmlessly.and off axis.Step 5: Carefully selected dampingmaterial in the added rearchamber tubeWhile a traditional horn on a dome tweeter resultsin significant boost at the highest frequencies whenProper loading prevents any sound from the rearmeasured on axis and falling off-axis response asStep 2: Proper pressure releaseunder the dome suspension rollchamber tube reflecting back to the movingfrequency rises, the precision calibrated M&K Sounddome system and eliminates a potential source ofwaveguide ensures consistent response across theIn typical tweeter design, some attention may becoloration.frequency band across the listening area.especially in tweeters with Ferrofluid in the air gap,Taken together, these five steps in the design ofThe M&K Sound waveguide design is optimized init is equally important to achieve proper ventilationthe M&K Sound Pro tweeter provide a precisionthe triple tweeter array for well balanced overallof the area under the dome suspension roll, becausemechanical foundation for the exceptional fluidity,response at all frequencies.the Ferrofluid in the magnet systems’ air gap actuallyvividness and authority of the high frequencyseals in the air under the suspension roll. Prickingperformancetiny holes in the voice coil former of the M&K Proconfiguration.paid to step one, but our research revealed that,ofthetriplestackedtweeterThe dome suspension roll is partly covered by aspecially designed overhang in the front plate totweeter ensures the release of trapped air under theeliminatesuspension roll via the larger cavity under the dome.peaks from the suspensionanyfrequencyroll that would interfere withthe dome’s pistonic motion.Becausesoundwavesgenerated by the outer edgeof the dome suspensionroll at the very highestfrequencies are out of phasewithsoundfrommaindome area, the overhangStep 3: Correct Ferrofluid viscosityand dosage in the air gapfaceplate has been designedto prevent such out ofThe quantity and viscosity of Ferrofluid exert seriousPolymer Coating for Linear Dampingdirect impact on the tweeter resonance and mustThe low mass of the polymer coated silk domebe kept within extremely tight tolerances duringincorporated in the M&K Sound Pro tweeter weighsproduction. The M&K Pro tweeter employs a nominalless than 140 mg for a substantial contribution to theContinuing the M&K Sound legacy of high frequencydosage of 110 mg of Ferrofluid administered withimpressive speed and accuracy of the system’s hightransparency and focus, the exceptionally fasttolerances tighter than 3%!frequency response.and accurate open-back M&K Sound Pro driverphase phenomena and thesmearing that they would cause.illuminates the emotion and timbre of the recordedStep 4: Proper damping structurein the vented pole pieceCommonly used tweeters characterized as “hardevent accurately and naturally, allowing the user todome” types typically display significant frequencylisten at any level and for as long as desired withoutWith no damping in the vented pole piece, the airpeaks and dips. In the M&K Sound Pro tweeter, thisfatigue.volume in the pole piece would behave like an airkind of extreme response irregularity is unacceptablemass load to the dome, causing irregularities in theand virtually non-existent thanks to the dampingAs is true of each and every individual componenttweeter’s low end frequency response.effect of the uniform coating applied to the silkthat goes into every single M&K Sound loudspeaker,dome. The polymer coating provides a high degreethe all-new M&K Sound professional tweeter isInstead of conventional one- piece, high-densityof uniform, linear damping for the silk dome’s naturaldesigned by professionals for professionals.damping, the M&K Pro tweeter utilizes two pieces ofbreak-up modes.lower density to ensure a much better defined andcontrolled airflow through the vent in the magnetsystem pole piece.89

M&K150 SERIESBASS POWERAND MIDRANGEFINESSETheexclusive, custom designedallows unimpeded airflow on both sides of the coneM&K Sound 5.25” bass/and around all moving parts for immediate heatmidrangeunitdissipation. Unlike conventional baskets designedrepresents the culmination of over three decadesdrivewith a plateau for spider mounting, the M&Kof intensely focused transducer design. While mostdesign team opted for a cup spider design, ensuringloudspeaker manufacturers make specious boastsabsolutely free airflow.Open, castaluminumbasketRadiused shape beneath dust capattenuates travelling wavesMineral-loadedpolypropylene cone6 mm linear top platefor magnet systemSpider center suspensionDouble magnet systemM&K Sound 5.25” bass/midrange drive unitthat their drivers are “heavily modified to theirspecifications,” the drivers used in the M&K SoundThe development of cone and surround, crucial150 range are in fact designed in-house by full-components with major impact on ultimate soundtime engineers that have been instrumental in thequality, was a collaborative effort with Peerless,linear cone shape that combines with a small radiuspowerful transients and sustained high output.design of M&K Sound transducers for more than twoleading Danish transducer specialists intimatelyat the voice coil neck to provide enhanced mechanicalUnlike most magnetic materials that lose power atdecades.familiar with M&K Sound’s design objectives aftercoupling between voice coil and cone.temperature extremes, the M&K strontium magnetretains full power across a broad temperaturedecades as supplier and partner.Because M&K Sound alone dictates the specificationsAs the earliest cone break-up modes generally occurspectrum.for our drive units down to the very last detail, basedWorking closely, M&K Sound and the Peerlessclose to the voice coil, the advanced mathematicson extensive original experimentation and research,transducer team (Among the world’s foremostunderlying the cone geometry provides substantialThe magnet system generates a linear magnetic fieldour loudspeakers are not subject to the changingtransducer designers, Peerless was founded inreduction of travelling waves well before they reachacross the full coil length even at maximum excursionwhims and fads of standard off-the-shelf drive units.Denmark in 1926.) developed a breakthrough conethe edge of the cone. The result is significant control( /- 3.5 mm), for minimal distortion all the way up togeometry, optimized to work in combination withof unwanted edge resonances in the driver.the driver’s maximum output levels.M&K Sound proudly works to a higher, strictera unique polypropylene based diaphragm material.standard, implementing meaningful changes asThe Polypropylene base, infused with 20% carefullyThe unstrained clarity and sonic purity that have beenA shielding magnet and can are added to minimizetechnology advances.selected minerals, provides a perfect balancethe hallmark of the M&K Sound 150 range from thestray field emissions and to focus additional flux inbetween cone stiffness and internal damping.very beginning are in large part a direct result of thisthe gap. These uncompromising methods ensure thatconscientious, innovative design work.the driver continues to meet its strict performanceThe dual 5.25” 150 woofer configuration employsa pin-cushion basket design with nationofmaterialsofcoil wound on an aluminum former. The formerWith a mere 8.5 gram of moving mass, the M&Kensures linear damping for strict system control evenSound bass/mid unit is capable of lightning fast,at high sound pressure levels.accurate response across its entire operating rangewith a firm grip even on the most complicatedlow-loss SBR rubberModestsurroundbaffle dimensions ensureandedgeresonance stabilizer.structural integrity, whileeliminatingThe M&K woofer features a thermally stable voiceandgeometry with acompactrequirements for years to come.The woofer’s low reflectivity cone is the resultof a carefully calibratedwoofersabaffle.10Low loss SBRrubber surrounddestructiveThe cone geometry is notThe thermally stable voice coil is wound withtemperatures up to 200 degrees Celsius, measuredIt is this extreme level of precision and effortless,at the coil.natural sound reproduction that continues to makethe M&K Sound 150 range the choice of professionalsdiffraction phenomena.the typical industry standardA completely open casthyperbolic geometry found inThe coil is symmetrically mounted in a strontiumaluminum basket structuremany other systems. M&Kferrite magnet system to function as an overhungwithwoofers feature instead acoil in the gap for reliable, consistent handling offoursolidpillarsprogram material.heat resistant copper wire designed to handleand enthusiasts.11

M&K150 SERIES12S150 MKIITHX Ultra2MonitorMPS2510PPoweredMonitorThe Next LevelYour EmpoweredAlternativeWhat this updated version of theFor the ultimate, revealing, tell-alllegendary studio monitor does in thelisteningconveyance of exactly what is there inoffersthe recorded source, no more and nomonitor with separate onboard Classless, is difficult to formulate in just aA/B power amplifiers for each driverfew words. Essentially, it does prettysection. Internal bi-amplification meansmuch nothing, except open up a wide,isolated, clean power for each speakerclean, clear window on every aspect ofas well as for each high and lowrecorded sound, allowing you to shiftfrequency section with no interference.your personal focus as you choosePhysical separation of the amplifiersbetween specific details, instrumentsfor each speaker pair eliminates anyor voices, while never losing sightpossibility of undesirable interactionof the totality of the overall musicalbetween the two channels such asexperience.crosstalk, etc.With no additive or subtractive or,SoundreferenceMPS2510PComing from the M&K Sound pro monitor range,it maintains the full integrity of the source, makingExtraordinaryeffortlesseffectively eliminates the final, insurmountableMPS2510P incorporates useful room integrationit possible to listen with uncanny precision into thepresentation of complex rhythms, linear frequencyunknown of loudspeaker design: What size, qualityand connectivity features, including variable verticalrecorded event, to experience the intricate interplayresponse and temporal integrity make the M&Kand type of amplification will be used to partner it?directivity and a throughput for connection ofof performers, the subtle tonal shadings and timbralSound S150 MKII THX Ultra2 a true joy to listen toThe performance advantages of assembling drivers,multiple speakers per channel or for direct subwoofernuances that bring you to the emotional core of thefor serious sessions or just for pure pleasure.active crossover, cabinet and amplifier to workconnection.performance.together as a unified system are enormous andOccupying less than a single cubic foot, the compactQuestions of greater suitability for music or movies orbring with them corresponding practical benefits,M&K Sound 2510P sys

design for Star Wars Phantom Menace, Attack of the Clones and Revenge of the Sith. This is the loudspeaker chosen to restore and remaster such film classics as Gone with the Wind and The Wizard of Oz. This is the loudspeaker chosen for sound production on Wall-E, Iron Man, King Kong, The Incredibles, Lord of the Rings: Return