Real owners lean toward the Letshuoer S12 Pro: 66% of 106 owners recommend it, vs 48% of 77 for the Etymotic ER2XR.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“Every penny, just first thing to do is to swap the oem cable with a balanced one and you'll be blown by the amount of bass and clarity.”— lnt976 on Reddit
“I consider them to have a balanced neutral response. It has been my gold standard where I compare every other IEM to. Well worth the cost in 2026.”— Gransmithy on Reddit
“Man I got scammed like you when I bought these iems some years ago haha these things only work well if the recording of the songs is absolutely perfect”— morkfjellet on Reddit
“The S12 is brighter than the HeyDay (to my ears), so I would recommend a warmer amp source to really make them shine, and I would assume that they would pair great with tube amps”— GlenAppleton on Head-Fi
“I just love my S12 PRO.”— @fhreire on YouTube
“The bass on most planars including the S12PRO decays quickly. Gives the entire sound profile a lighter note weight and no amount of tip rolling will change that aspect (I went through 12 pairs).”— StolenServiceAnimal on Reddit