Real owners rate these about evenly: 66% of 106 Letshuoer S12 Pro owners recommend it, vs 63% of 203 for the Moondrop Chu II.
Verdicts aggregated from Reddit, enthusiast forums, and YouTube owner comments — affiliate reviews excluded. Sample sizes differ; judge accordingly. How we score
“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
Real owners rate these about evenly: 66% of 106 Letshuoer S12 Pro owners recommend it, vs 63% of 203 for the Moondrop Chu II.
Owners point the Letshuoer S12 Pro at value-seekers wanting a technical planar under $200, and eDM, rock, and metal listeners who like energetic sound.
Owners point the Moondrop Chu II at beginners wanting a safe budget blind buy under $20, and vocal and detail lovers listening to pop, indie and acoustic.
The most-cited downside of the Letshuoer S12 Pro is bright, sometimes harsh treble. For the Moondrop Chu II, it's bass too thin for bassheads.