技术的进 频响图问题

Monster Beats Solo HD
Last, and without doubt among the least, is the Beats by Dre Solo HD. The rounded, broke-back look of its 30Hz square wave is a clear indication of phase problems and indicate a loose, boomy bass. The fact that it remains high in level throughout means you'll have poor quality bass all the way down to 30Hz pummeling your ears. The quick features of the 300Hz leading edge, unlike the XB500 above, means that you'll get a little bit of articulated treble, but the rapidly rising remainder of the waveform indicates it will be overwhelmed by the mids and bass.

460与450差别好像只是500~1000hz的中音部分，450是个小凸起，460是个小凹槽，可能会使中→中高音过渡好点，极低音460起点稍高，下潜应该好点。其余的走向怎么看都差不多......