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1、AV功放的技术指标ThetechnicalindexofAVpoweramplifierAVpoweramplifierisanimportantpartofthehometheater,anditsperformaneeismainlydeterminedbythefollowingindicators:1,signal-to-noiseratioSNRreferstothedecibeldifferencebetweenthelevelofanaudiosignalandthenoiseleve1.Thehigherthesignal-to-n
2、oiseratio,thesmallertheamplifierrelativenoise,thebetterthesoundquality・2,outputpowerOutputpowerreferstothepoweramplifierconnectedtothespeakeroftheenergyofthepoweramplifier,theratedpower(RMSpoweramplifiercancontinuouslyoutputintheundistortedcondition)istheeffectiveindextoevalua
3、tetheperformanceofthepoweramplifier・3frequencyresponseThefrequencyresponseisusedtomeasuretheabilityofapieceofequipmenttoreproducethesignalsinhigh,mediumandlowfrequencybands・4,distortionEquipmentoutputcannotcompletelyreproduceitsinput,resultinginwaveformdistortionorsigndlcompon
4、entchanges,knownasdistortion,poweramplifierdistortionissmaller,thebetterthesoundquality・4,dynamicrangeTheleveldifferencebetweenthestrongestpartofthesignalandtheweakestpart・Forthedevice,thedynamicrangeindicatesthedevice，sabilitytorespondtostrongorweaksignals・5,dampingcoefficien
5、tDampingcoefficientistheratiooftheloadimpedancetotheamplifieroutputimpedance・Itisaperformanceindextomeasurethedampingeffectoftheamplifierinternalresistancetotheloudspeakerbox・6,outputimpedanceTheoutputimpedanceofapoweramplifieristheequivalentinternalresistanceofitsoutputtermin
6、altothespeaker・Itshouldbeconsistentwiththeratedinputimpedanceofthespeaker・8、separationdegreeSeparationreferstotheabilityofaSurroundDecoderinanAVpoweramplifiertorestoreanaudioencodedsignaltoeachchannelsignal.Thepoweramplifierwithpoordegreeofseparationwillappearthephenomenonthat
7、thesoundandimagelocationisinaccurate,thesoundfieldisnotfull,andtheaudioandvideocoherenceispoor・Detaileddescription*theYSprocessor(YAMAHAspeakerprocessing)hastheperfectmatchwithourClubfamilyspeakers,sothatthewholesystemgetsthebestperformance・*individualandscanninghigh/lowwavede
8、tectorsineachchannelcanoptimizetheoutputofsubwooferspeakersor
