http://img.auctiva.com/imgdata/9/0/4...9_o.jpg?nc=581
請問Grundig此響應圖為什麼有兩條線? 左邊代表兩格是10db?
以下附全圖:
http://www.auctiva.com/hostedimages/showimage.aspx?gid=904755&ppid=1122&image=785671469&images=785671499,785671031,785671460,785671447,785671437,785671138,785671046,785671038,785671102,785671088,785671127,785671115,785671060,785671513,785671524,785671484,785674969,785671469&formats=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0&format=0
感恩萬分!
