CM-1500:HybridPassivePre-Amplifier
TheHybridPassivePreAmplifierCM-1500
Drawsoutthemusic’srealityandtheartist’spassionthePhasemation’s ControlMeisterisnowavailableatanaffordableprice.
Modelname:CM-1500
Color:Gold/Black
1stShip:Dec.2024
Production:YokohamaJapan
〈DesigningBackGround〉
Phasemationhasbeenadvocatingthe“ControlMeister,”ahybridpassivepreamplifierwithno built-inactivecircuit,whichisoutstandingfromthestandardpreamplifiers.In2022,theCM2200,aculminationoftheseefforts,wasreleasedwitha+6dBamplificationfunctionandhas receivedmuchacclaimfrombothJapanandabroad. In2024,wewillreleaseitsbrothermodel,theCM-1500.TheCM-1500isequippedwith Phasemation'spatentedhybridattenuatortechnology,makingitpossibletoenjoythepure playingofthe“ControlMeister.”TheCM-1500canbeusedinallkindsofsituations,including highvolumesplayedwithtoday'slow-efficiencyspeakersandlow-gainamplifiersusedtogether.
〈Features〉
Equippedwithapatentedhybridpassiveattenuatorthatdeliversaverytransparentsound
Anewdevelopmentforbalancedandoptimallycoiledattenuatorforsuperiorsoundimagelocalization
Loadedwitha3-stepgainswitching(-10,0,+6dB)makinganyvolumesettingtobepossible
Balanced/unbalancedoutputscanbeusedatthesametime
High-performancecoreandwindingmaterialsareusedinthetransformerstoreproducerealisticbass anddelicatetreblesounds.
Thoroughlyeliminatesexternalinducedhumsandunwantedvibrationstoproducepure,blur-free sounds
Adoptionofpartsforvarioushighsoundqualitythatimprovestheexpressionindetail
Equippedwithapatentedhybridpassiveattenuatorthatdeliversaveryvividsound
AswellasCM-2200,CM-1500isequippedwithPhasemation'spatented“HybridPassiveAttenuator”thatachieves theidealpreamplifierhavinghighinputimpedanceandlowoutputimpedance.Thisidealdesign,whichisa combinationoftakingonlytheprosoftheresistivetypeandtransformertypeattenuators,playsahighly expressive,vividandtransparentsound.
Newlydevelopedbalancedwindingattenuatorforsuperiorsoundimaging
Fortheattenuatortransformer,weadoptedabalancedattenuatortransformerwithtwoattenuatorwindingsfor theHOTandCOLDsidesofthebalancedconnectioncoiledontoasingletransformer.Furthermore,sincethereare twoattenuatorwindings,theCOLDsidesignalisgeneratedinsidethetransformerevenforanunbalancedinput, enablingacompletebalancedoutput.Thebalancedvolumecontrolcircuittransformerproducesexcellent frequencyandphasecharacteristicsoverawiderange,reducesphasedistortionwithintheaudiblebandwidth,and aboveall,contributestoaclearerandprecisesoundimagelocalization
3-stepgainswitching(-10,0,+6dB)makinganyvolumesettingtobepossible
Thebalancedattenuatortransformerwith+6dBgainthatwasusedintheCM-2200isalsoadoptedforCM-1500. TheCM-1500hasthreegainswitchingof+6dB/0/-10dB,which,incombinationwiththeattenuator's23 contacting-pointsthatcanbechangedwithinarangeof0dBto-50dB,allowsevenfinervolumesettings.The transformerwindingstructurehasbeenre-examinedtoensureawide-rangefrequencyresponseandtoguarantee impedancecharacteristicsregardlessofwhichcombinationisselectedsothattheCM-1500'sfine,clearsound imagelocalizationcanbeenjoyedatanygainlevel.TheCM-1500usesaprintedcircuitboardandhasasimplified housingstructure,whichimprovesproductivityandmakesitavailableatapricethatisaffordabletomanypeople.
Balanced/unbalancedoutputscanbeusedatthesametime
Theinputprovides3unbalanced(RCA)and2balanced(XLR)inputs.Theoutputprovides2 unbalanced(RCA)and2balanced(XLR)outputs,andthecircuitdesignallowssimultaneous output,increasingtheflexibilityofsystemconstruction.
High-performancecoreandwindingmaterialsreproducethebassrealismandthedelicacy treblesounds.
Thecorematerialofthetransformeris“ultra-thin0.1mmSuperMalloymaterial”thatisusedin theCM-2200superiormodel.ThewindingmaterialalsousesPC-TripleCpolyurethanewire,which isthemostsuitablewireforaudiomaterialstoachieveexcellentlow-rangelinearityandin combinationwithalargecorethesubtleandrelaxedhighfrequencycharacteristicsarerealized.
Thoroughlyeliminatesexternalinducedhumsandunwantedvibrationstoproducepure,blur-freesounds
The10mmthickaluminumslantedfrontpanelfollowstheelegantdesignoftheCM-2200.Thechassisandtop coverpanelaremadeofsturdy1.6mmthicksteelplatewithcopperplatingtoensurethoroughmeasuresagainst externalinducedhum.Inaddition,thetopcoverpaneliscoatedwithalowdielectricpaint.Inaddition,adouble magneticshieldingmaterialisplacedunderthetransformertoensurerigidityandreducemagneticdistortion.The legsaremadeofheavymetalinsulatorsmadeofacombinationofdifferentmaterialstopreventexternal vibrations.
Useofhigh-qualitypartstoenhancetheexpressionofsounddetails
Allrotaryswitchesusegold-platedcontacts.TheRCAterminalsaremadefromhigh-qualitymachinedbrassand thengold-plated,andtheXLRterminalsusegold-platedterminalsmadebyNeutrik,thoroughlyimprovingthe expressivenessofeverydetail.
CM-1500SpecificationHybridPassivePre-Amplifieer
InputImpedance47kΩ~
ChannelSeparation100dB~（20～20kHz）
FrequencyResponse10～100kHz（+0,-3ｄＢ）
OutputImpedanceunder250Ω
ImputterminalsRCA×3、XLR×2
OutputTerminalsRCA×2、XLR×2
Dimension430(W)×93(H)×362(H)mm
Weight6.5kg
〈DesigningBackGround〉
Historyof”ControlMeister”
Phasemation‘s“ControlMeister”hasbeenapplaudedaroundtheworldforitsvividand expressivesound.
ItallstartedwiththeCM-1in2009,followedbyreferencemodelssuchastheCM-1000,CM2200,andnowtheCM-1500isreleased.
IntroducingCM-1500inY2024
Introducedin2022,theCM-2200markstheculminationofControlMeister,bringing Phasemation'ssoundphilosophytolistenersaroundtheworld.However,itisalsotruethatthe priceoftheCM-2200isnotinarangethatwillsatisfyeveryone,includingbeginners.
PhasemationhasdevelopedtheCM-1500tomaketheControlMeistermoreaccessibletoawider audienceofmusiclovers,withasoundqualitythatfollowstheCM-2200atapricethatismore affordable.ThenewControlMeisterCM-1500isaproductthatallowsyoutorediscoverthejoyof listeningthemusicthroughyourlisteningexperience.
<”ControlMeister”/Thedefinition>
TheinheritedcommonTechnology;Patented“HybridPassiveAttenuator”
Theproductswecall“ControlMeisters”shareacommontechnology.ThatisPhasemation's patented“HybridPassiveAttenuator”technology.
Whatis“HybridPassiveAttenuator”?
The"HybridPassiveAttenuator"isanidealvolumecontrolcircuitthatcombinestheadvantages oftheconventionalvolumecontrolmethodofresistiveattenuatorandthevariabletransformer attenuator.
Meritof“HybridPassiveAttenuator”
The“HybridPassiveAttenuator”hasmanyadvantagesandbenefits.
■HighinputimpedanceNoextraburdenonthesourcedeviceattheinput,thereforeit receivesastablesignal.
LowoutputimpedanceNosounddeteriorationtothepowerampevenifalongcableis used.
NopowercircuitsordevicesthatrequirepowerNopowersourcemeansnonoisesource.
NoactiveelectricalamplifiercircuitFewercircuitcomponentsforfreshersound.
TheSoundof“HybridPassiveAttenuator” Asaresult,“HybridPassiveAttenuator”technologyproducesahighlyexpressive soundwithahighdegreeofclarity.Inaddition,thesounddoesnotthinevenwhenthe volumeisturneddown.
OrdinaryATT (byResistor)
<ConstructionoftheHybridPassiveAttenuator>
OrdinaryATT (byTransformer)
Theoutputimpedancebecomes high.
Thenumberoftransformertaps increases,makingproduction moredifficult.
HybridPassiveAttenuator (byResistor+Transformer)
Thetransformeriseasytomake.The combinedresistanceis1KΩ,andtheoutput impedanceiskeptbelow250Ω.
Anewdevelopmentforbalancedandoptimallycoiledattenuatorforsuperiorsoundimage localization
Theattenuationtransformerused isabalancedattenuation transformerinwhichtwo attenuationwindings,oneforthe HOTsideandonefortheCOLD sideofthebalancedconnection, arewoundonasingletransformer. Furthermore,sincetherearetwo attenuatorwindings,theCOLD sidesignalisgeneratedinsidethe transformerevenforan unbalancedinput,enablinga completebalancedoutput.The balancedvolumecontrolcircuit transformerproducesexcellent frequencyandphase characteristicsoverawiderange, reducesphasedistortionwithin theaudiblebandwidth,andabove allcontributestoclearerandmore accuratesoundimagepositioning.
<Otherdetails>
3-stepgainswitching(-10,0,+6dB)makinganyvolumesettingtobepossible SothequestionwashowcanyoulowerthepricewithoutdroppingthequalitycomparedtotheCM-2200 (thereferencepassivepreamplifier).Wehavebeenconfrontingwiththisgoalissue.TheCM-2200has46 contactingpoints,buttheCM-1500has23,whichishalfthenumberofcontactsoftheCM-2200.Tomake upforthehalvedvolumecontrolpoints,a3-levelgainswitchisprovided.
TheCM-1500hasa+10dB,0dB,andthe+6dBamplification,whichhasbeenusedsincetheCM-2200, allowingthevolumetobeadjustedbyswitchingbetweenthethreelevels.
Thetransformerwindingstructurehasbeenre-examinedtoensureawiderangeoffrequencyresponse andimpedancecharacteristicsregardlessofthecombinationselectedsothattheCM-1500’spreciseand clearsoundimagelocalizationcanbeenjoyedatanygainlevel.
Thegainselectionswitchusesahigh-quality switchwithgold-platedcontacts,whiletheuseof aprintedcircuitboardhasimprovedproductivity andsimplifiedthehousingstructure,makingit affordableformanypeople.
Balanced/unbalancedoutputscanbeusedatthesametime
Theinputprovides3unbalanced(RCA)and2balanced(XLR)inputs.Theoutputprovides2 unbalanced(RCA)and2balanced(XLR)outputs,andthecircuitdesignallowssimultaneous output,increasingtheflexibilityofsystemconstruction.
OUTPUT1 (XLR/RCA)
(XLRx2/RCAx3)
Thoroughlyeliminatesexternalinducedhumsandunwantedvibrationstoproducepure,blur-free sounds
The10mmthickaluminumslantedfrontpanelfollowstheelegantdesignoftheCM-2200.Thechassisandtop coverpanelaremadeofsturdy1.6mmthicksteelplatewithcopperplatingtoensurethoroughmeasures againstexternalinducedhum.Inaddition,thetopcoverpaneliscoatedwithalowdielectricpaint.Inaddition,a doublemagneticshieldingmaterialisplacedunderthetransformertoensurerigidityandreducemagnetic distortion.Thelegsaremadeofheavymetalinsulatorsmadeofacombinationofdifferentmaterialstoprevent externalvibrations.
OUTPUT2 (XLR/RCA)
INPUT1-5
Adoptionofpartsforvarioushighqualitythatimprovestheexpression indetail
Allrotaryswitchesusegold-plated contacts.TheRCAterminalsaremade fromhigh-qualitymachinedbrassandthen gold-plated,andtheXLRterminalsuse gold-platedterminalsmadebyNeutrik, thoroughlyimprovingtheexpressiveness ofeverydetail.
CM-1500
<Specification>
HybridPassivePreAmplifier
InputImpedance47kΩ~
ChannelSeparation 100dB以上（20～20kHz）
FrequencyResponse 10～100kHz（+0,-3ｄＢ）
OutputImpedance250Ω以下
InputterminalsRCA×3、XLR×2
OutputterminalsRCA×2、XLR×2
Dimensions430(W)×93(H)×362(D)mm
Weight8.0kg
