audio-technica SOLID BASS PORTABLE HEADPHONES ATH-WS55X Black Color 【Sound Characteristics】 As the name "SOLID BASS" suggests, it has tight, well-defined bass and clear mid-high frequencies. Vocals sound clearer and fuller, and delicate high-frequency sounds are reproduced with high resolution, clarity, and extension. The sound onset is quick in all frequency ranges, and the sound settles relatively well, resulting in a very clear sound with sharp edges. Therefore, it's easy to hear even in a crowd, and the bass is less likely to be drowned out by low-frequency noise. 【Overall Impression】 Balanced headphones sound good indoors, but the bass can feel lacking in a crowd. I was looking for a product under ¥10,000 that emphasized bass, and I found this model. A φ53mm large-diameter driver is rare for headphones under ¥10,000, and I initially thought it might be heavily bass-focused due to the large driver size... However, many relatively inexpensive bass-focused headphones overemphasize the bass, resulting in a muddy sound and disrupting the overall balance. In contrast, as mentioned above, this model has a fast and solid sound that is easy to hear even outdoors, and the high frequencies are clear and beautifully reproduced. I think it's outstanding for its price range of around ¥5,000. I've used it a few times, but I'm not using it anymore, so I'm selling it. With box.