????????????????????????
????????????????????????????????????????????????????????????????????????????￡???????????????????????????????????????????????????????????????????С???
?ū???????????????????????????繦?????ɡ??????????繦?????????????????????????????в???????????????2????????????????????????????????繦??=???????????+?????????????
??????????????????????繦??????????????????????????????????????С??????????Ч?????????????????Ч???????
?????Ч??????????1???????
?????Ч??= ???????????/????????繦??*100%
?????????????繦????????????????3?????????
1/8 Power??1/3 Power??Maximum Power??
????????????????
1/8 Power?????????????????????????????????????
1/3 Power?? ???????????????????
Maximum Power??????????1%????????????????????
???????????????????????????????ж???????????Щ??????????????б??1/8 Power??1/3 Power????????????軔????跡?μ??????????8??3???ó????跡??1/8 Power??1/3 Power????????????
???????LAB FP6400??????????????????????????????????????ù?????????С??????????LAB FP6400???????????е?????
FP6400 Power 1/3 Power 1/8 Power Idle
8 ohms 2?? 1300W 1230W 575W 105W
4 ohms 2?? 2300W 1975W 900W 105W
2 ohms 2?? 3200W 2950W 1290W 105W
??????ù????????????????????2????4 ohms???????????????????????????????????Ч??????????????????????????????????????2????4 ohms????????????????????????
????????2????4 ohms??1/3 Power??1975W??????????????繦??????????????????????2???????????????????????????????4000?????????????????
??潲?????????????????????????繦??=???????????+????????????????????????????????2????4 ohms??1/3 Power????μ??????????????????Ч???
1/3 Power??????????=2300/3??2=1533W
???????2????4 ohms??1/3 Power????繦?????1975W??
????????=??繦??-???????=1975-1533=442W
?????Ч??=???????????/????????繦??*100%=1533/1975??100%=77.6%
????????????"AB??????????????50%??H????60%-70%??D???80%????"??????????????????????????????????????H?????????????????????Ч????????к???????????????LAB FP6400??Ч?????77.6%????????????????????????????Ч????
???????????????綥??????CREST AUDIO????壩?????????????±????±???CREST AUDIO???????????PRO9001???Щ????????
4 ohms Stereo Power?? 2??2050W
Class?? H
1/3 Power Curr Draw?? 30A??120V??4 ohms??
??????????PRO9001??2????4 ohms??1/3 Power????μ??????????????????Ч???
1/3 Power??????????=2050/3??2=1367W
1/3 Power????繦???=30??120=3600W
????????=??繦??-???????=3600-1376=2233W
?????Ч??=???????????/????????繦??*100%=1376/3600??100%=38%
?????H??????LAB FP6400??Ч????77%????CREST AUDIO PRO9001??Ч??????38%????????CREST AUDIO AB?????Ч???
?±???CREST AUDIO???????????PRO3301???Щ????????
4 ohms Stereo Power?? 2??330W
Class?? AB
1/3 Power Curr Draw?? 9A??120V??4 ohms??
?????PRO3301??2????4 ohms??1/3 Power????μ??????????????????Ч???
1/3 Power??????????=330/3??2=220W
1/3 Power????繦???=9??120=1080W
????????=??繦??-???????=1080-220=860W
?????Ч??=???????????/????????繦??*100%=220/1080??100%=20%
????????????????????"???????"?????"AB??????????????50%??H????60%-70%??D???80%????"????????????????????????
???????????????????????????????1/3 Power????繦???????????????2???????????????????????????????????????
???????
