The R03 is an upmarket professional-level earphone from well-known Chinese manufacturer ViSang. With quality materials used all-around, the build of the R03 is as venerable as the sound. Metal shells and a Cu-Ag alloy cable ensure longevity while the 10.7mm dynamic driver delivers crisp, powerful, and engaging sound. A uniquely patterned cable sheath provides flexibility and reduces cable...
“ After around 50 hours burn-in: - Muddy, fat yet shallow bass, recessed mids, non-existent highs. if the mids aren't this recessed it is actually quite smooth, and there/s no sibliance problem cos there's no highs. one should not underestimate the power of burn-in but if burn-in can turn this into something half-decent i'd be really pleasantly surprised. i'll do another review after maybe a...” --productred