??????????????????? ?????????????2??? ???????????????

4??????????? ???400???4??1600???

??С?????????

??????????????????3?ζ???60??=100??; ???????? ???

??2????緭???70??=100??; ????????????

???????????????????????100??=100???????????????? ?????????

????????ó????; 100??

?????????????????????????;100??

????????????????400???4??1600???

?????????3?????

300????????=2300?? 3??????300??=6900??;

??????100?鵥???=800?? ;

?????????1000????? ???4?????52?????????????? 9480?????????=9480???

1600

+1600

+6900

+800

+9480

=20380???

?????1000?黨1000?顣 ?????? 300 300 300 100??

???????????

??????????????????????

????????????????淨(jìng)???????

?????????????????????????

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