66% of 68 verified owners recommend the Letshuoer S12 Pro.
Affiliate blogs here say 100% recommend, while the owner-based score is 66%. They earn a commission on every sale — so we show them for transparency but never let them move the score.
The headline score reflects owners (Reddit, enthusiast forums), independent lab tests, and blogs with no affiliate links. YouTube and affiliate blogs are shown for perspective but kept out — hover the i for why.
“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).”
“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”
“On the S12pro the bass is also superb, no complaints here. It's the treble that's a bit hot at times, even after adding O2 damper mesh. Narrow bore tips help somewhat.”
“I've been daily-driving the S12 Pro for 2.5 years, literally listening every day, and I can't say it has much of a soundstage.”
“I just love my S12 PRO.”
“I just returned the s12pro. Maybe my ears are shot, but there was no usable bass eq. The treble was harsh, but I couldn't get over not hearing bass mostly. It sounded like my phone's speakers were placed in my ear.”
“Letshuoer S12 pro without eq is one of the worst IEM I own and I will take KZ ZSN pro X and Final e500 over it”
“I love my S12's, I just really wish the nozzle were longer and grippier. I've never had as much trouble keeping a pair of IEMs in than I have with these.”
“Loving them BTW.”
“The S12pro Aful P5 and the EA500LM mostly collect dust now adays not even playing in the same ball park.”
“S12 Pro punchy sub bass i would disagree with this statement while bass is pretty tight and good it's far from punchy”
“The S12 Pro is still a banger in 2025.”
“I love my S12 Pros. Had to tone down that mid and low treble a bit tho”
“-S12/S12Pro/Z12- Great for EQ, Classic V shaped planar. Not really the best deal unless you love the shells and cable. The F1 Pro and Artti T10 give you similar sound for less.”
“The **Letshuoer S12 Pro** was way too bright for me. I tore them out of my ears in frustration.”
“I still love my S12 Pro. I had to switch out the cable with a Tripowin Zonie cable because the stock one was too stiff, but other than that I find them super comfortable.”
“I owned EA500 and s12pro, but both of them are not fit my ear as no ergonomic design..”
“I'm in my 50's my hearing is pretty good. With all things being equal, tips, fit, same tracks to test at same volume and them eq settings, I like the sound of the KZ 12 pro X over the others.”
“I rather enjoy my s12pro, however for me they become unconformable af after extended use. My ears start to hurt when using for 6 plus hours”
“I thought S12pro was mid and the fitment was really loose for me”
“These IEMs sound perfect to me with the foam tips.”
“It's funny that this is the smallest planar iem I have but is the most fiddly to get a good fit. Settled with these longer spin fit tips.”
“Like the Letshuoer S12 Pro sucked for me, as did the S08.”
“I had/have some Audio Technica ATH-M50s and a pair of Letshuoer S12 Pro IEMs. They are way and above the ATs”