Martin Audio Blackline X8 handleiding

Handleiding

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BlacklineX USERGUIDE

BlacklineXUserGuideV2.1 17

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Amplification

Choosingapoweramplifier

Martin Audio loudspeakers are capable of recreating musical dynamics accurately and with incredible impact if powered

correctly.MartinAudioloudspeakerpowerratingsarequotedforAESpower‐along‐termaveragepowerratingwithamuch

closerrelationtoamusicsignalthanothermeasurementstandardssuchasRMS,andPeakpower–ashort‐termburstcapability

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Moving coil loudspeakers can be run up to their AES power rating continuously and up to the higher Peak power rating for

transientmusicalpeaks.AllBlacklineXSeriesspeakershaveapeakpowerratingfourtimesthelong‐termAESrating.Ideallyyou

shoulduseanamplifierthatcandelivertheful

lpeakratingwithoutriskofclipping.Thishowevermaybebeyondthebudgetfor

manysoagoodcompr omiseistoaimforanamplifierthatcandeliveratleasttwicetheAESrating.

Thisisparticularlythecasefortheamplifierdr

ivinganX8,10,12or15whentheyareusedinconjunctionwithan115,118or

X218asthesubcabinetwillbedelivering themajorityoftheenergyintheprogrammaterial.Donothoweverscrimponthe

amplifierdrivingthesubwoofer.

This should be acceptable for many applications but be aware of the limitations particularly if the system is used wit

h

uncompressedlivemusic.Inparticularitisvitaltoavoidamplifierclipping,thisispossiblythebiggestsinglecauseofdamageto

speakerdrivers.Theclippedwaveformhasacolossalharmonic output  at ultra‐high freq uencies all bein

gdeliveredatthefull

powercapabilityoftheamplifiersospeakerdamageisextremelylikely.

Theamplifierselectiontablebelowwillassistinchoosinganamplifiertosuityourapplicationatanacceptablepricepoint.

GainSettings

The vast majority of professional and even budget amplifiers on the market these  days have a standard front to back gain 

regardlessoftheiroutputpowercapability.Theindustrystandardgainfigureis32dBwhichisagainofX40.Thisfigureisagood

balancebetweenenoughgaintorunthatmajo

rityofsystemswithouthavingtodrivemixersandanyotherprocessingequipment

atalevelsohighthatthereisariskofclipping,andnottoomuchgainwhichwouldraisethenoisefloorofthesystem.When

usingaDX0.5orothersystem processorwhich  has a  limiter functionyo

ushouldalwaysusethelimitersettingsshowninthe

parameterchart(seethechapterontheDX0.5SpeakerProcessor).Thelimiterthresholdiscalculatedtoallow the  maximum

levelfromyoursystemwithoutdamageandisbasedonaknownamplifiergainsetting‐32dBbydefault.Forth

atreasonitisvital

thatiftheamplifierhasfrontpanelgaincontrolstheyMUSTbesetFULLUP.Loweringthemdoesnotoffermoreprotectionfor

yoursystem,itjustchangesthe gainsettingoftheamplifiersoagreaterinputlevelisrequiredtoobtainthemaximumpower

fromtheamp. Thiswillmakethe limiter inth

esystemcontrolleruselessasthe gain isnolongeratthesetting for whichthe

thresholdhasbeencalculated.Foroptimumperformancealwaysobservethefollowing;‐

 UseaDX0.5orhighqualitysystemprocessor

 UsethepublishedParametersfortheBlacklineXrange

 Useanamplifierwithagainof32dB(X40)

 Alwaysrunfrontpanelgaincontrolsfullup

 Avoidamplifiersthatonlyquoteasensitivityrating;"xxdBformaximumoutput"(i.e.nopublishedgainsetting)

RecommendedAmplifiers

Model AES Power

Rating

Peak Power

Rating

Ideal amplifier rating Minimum rating Martin Audio amplifiers

4Ω 8Ω 4Ω 8Ω

X8 200W 800W 1,600W 800W 800W 400W VIA2502,VIA5004

X10 250W 1,000W 2,000W 1,000W 1,000W 500W VIA2502,VIA5004

X12 300W 1,200W 2,400W 1,200W 1,200W 600W VIA5002,iK81

X15 400W 1,600W 3,200W 1,600W 1,600W 800W VIA5002,iK81

X115 500W 2,000W 4,000W 2,000W 2,000W 1,000W VIA5002,iK42

X118 500W 2,000W 4,000W 2,000W 2,000W 1,000W VIA5002,iK42

X218 1,600W 6,400W 6,400W 3,200W 3,200W 1,600W IK42

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Bekijk gratis de handleiding van Martin Audio Blackline X8, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.

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