1?? ??????

??????????????????????????????????10???????????????????????????50?????????????????50???????????????????????10??20??30?????????????????????????????????????????

 

???30-35????????80??????;

36-40????????120??????;

41????????????130???????

2?? ??????????????????????顢????????????????

 

3?? ????????

???????????ν????????????30???????????1?ν?????????????50????????????????????????????1?Ρ?(???????????????????????????????)

????????????????????μ????н????????????A???????80??????????????????????10??20??30??50??70????????????

???????40407?????????http://audiogearreviews.com/smxj/