I came across with a lot if high end in ear monitors, it seems to me the expensive ones have low ranges. Ex. shure se535 18Hz to 19kHz. 425s have 20Hz-19kHz. Westone 4 have 10Hz to 19kHz. Can you explain why low range means better.
BTW, can you guys tell me Westone 4 have which drivers housed. Is it 2 woofers & 2 tweeters?