Letshuoer (Shuoer) - S12 Ultra
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Reddit Reviews:
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Last updated: Dec 15, 2025 Scoring
Liked most:
1632
60
"Literally couldn't think of any pair of IEMs + dongle dacs could sound as analytical as the C3P+ for around $70. ... detail is just sooo much better. The C3P+ is just leagues ahead the I5 in terms of detail and resolution. ... the C3P+ is actually the closest sounding one to really expensive iems or headphone that I have."
"Crazy good from the jump! ... When you factor in they're only $99 and go toe-to-toe with Bose QC Ultra at $299, this is the deal of the year!"
"Can't recommend them enough for the value, sound like $200 earphones."
44
10
"that thing was my work horse for years."
"These things are VERY durable in my experience. ... I've accidentally sat on them, banged them against the wall and table, slept on them, my cat even grabbed them and ran away dragging the IEMs on the floor, and yet they still feel and function the same as DAY 1."
"made of metal and feels like a tank yet also light"
40
20
"This is the only thing where I was impressed and really felt like it was an upgrade! The Beryllium dynamic driver is impressive. It passed my distortion test at max volume. It's very EQ friendly. ... I call this driver competent for EQ'ing. ... Cadenza gives so much freedom in EQing. And it sounds better. A single DD driver is more EQ friendly than multi. ... My Cadenza with EQ sounds better than any sub 80 dollar sets. Tonality wise, it has everything that I wanted. ... Honestly, after limit testing Cadenza I concluded that I don't require Castors. Cadenza gives so much freedom in EQing. And it sounds better."
"This keeps the clarity of mids & vocals intact while adding punchy bass. It’s a versatile setting that works well across most genres. ... This is my personal favorite."
"Planars IEMs handle EQ really well ... Your going to be surprise by that driver prowess."
102
23
"They don’t go in your ears at all. they just kind of clip on gently and sit there. ... no pressure ... way more comfy than anything I’ve tried."
"The IEMs really stay in my ears thanks to the free Spring Tips. I shook my head really hard for a few seconds and it didn't fall out my ears."
"just clips on the outside of your ear and feels super light, no pressure at all."
11
3
"I love the Letshuoer S12s for metal and rock. ... Super clean sound even without EQ."
"Best timbre I've heard from a planar."
"The smoothest S12 letshuoer have made so far ... smooth enough to not be fatiguing ... The S12 Ultra is fun, dynamic, bassy with enough air and transients to hold up in the technical department. If you found the previous S12s or planars to be too bright and energetic, then the Ultras might just change your perception this time around since - I guess you could say - it has a more "musical" approach to planars. ... it is however more musical, dynamic, but also smoother and more refined in the playback"
Disliked most:
73
88
"the current sub is beyond terrible, at least to my ears. ... my 80W 10" Vizio subwoofer that is miles better than the Samsung ... The biggest complaint about the Samsung soundbars was always the lack of bass. ... I returned the B and the D due to the poor subwoofer performance. ... The weak sub was always the main problem with these bars."
"the subwoofer disconnects sometimes every 15 seconds ... now its been ok after reconnecting it for the 20th time"
"Will they fix the subwoofer dropage issues? ... Ended up returning it due to the neverending link problems."
2
15
"it's completely unnecessary because it's very underwhelming on low to mid volume ... in low to mid volume it very underwhelming you really have to turn it way up to get the real surround Atmospheric feel ... it's really intended for large dedicated rooms but in a small apartment where you don't want to disturb the neighbors it's completely incompatible."
"It's really solid for movies but lacking big time for music, especially at lower volumes."
"My wife, who knows very little about soundbars and watches tv movies with me, thought I hadn't bought the "GREAT SOUNDBAR" I bragged would put us into a movie theater in our bedroom.. ... We have to play the volume somewhat low but not too low. We can't disturb our neighbors. We live in an attached town home. ... The sound was dull and lifeless."
6
16
"MagicOne needs a LOT of power to shine. Don't even think of running it straight from your phone or an Apple dongle. This baby craves power to sing."
"this facecam pro eats A LOT of resources / bandwidth / who knows … that sometimes my other facecams slowdown or my stream deck plus ‘s screen start flickering and acting weird … or some devices don’t work at all. ... (I have a very capable streaming pc)."
"But, these are power hungry af."
5
5
"way too bright. ... The source doesn't matter, being it a desk amp or a usb dongle"
"there are some peaks on the S12 that the S08 doesn't have ... it does have some real peaky spots that stick out that I personally see as a negative."
"Not for those who want to analyze/dissect music. The s12 ultra is meant for those that enjoy music without thought. Not for treble heads/detail lovers either. ... the details aren't as pronounced as it should be especially for a planar driver."
0
1
"Speaking of the 2-pin connection, I ran into a small issue when trying to cable roll. The right shell has a very tight connection. It took some patience to get the stock cable inserted and even more effort to remove it. When I went to try another cable, one of the pins nearly bent while exerting the necessary force to get it to seat inside the housing. After that I chose to put the stock cable back on and only utilize it for the review in fear of damaging my other cables or the IEM itself. Now, this could just be an issue with my unit, or perhaps it's potentially a broader QC issue, but only time will tell as others start to receive their own units."
ew200 is quite a bright signature. if you like that then i'd go for a more traditional planar like s12 which will give you some of the most detial and separation in the price s08 is great but could also sound way too mellow in the treble if you liked ew200
r/iems • Upgrade recommendations for Simgot EW200 user? ->For me it’s a mix of the feel of the build quality along with generally higher resolution and better separation of instruments as you go up in price (to a point). Other than that tuning is largely the difference and you could easily prefer a $300 IEM with your tuning style to a $1000 one with a different signature. I just got the s12 ultra used for $120 and compared it to my $1000 monarch mk4 and honestly it’s tough to justify keeping the monarch. The resolution and separation on the s12 are pretty impressive, the bass hits more to my liking as well… then I compared to my old apple ear buds and there is a clear difference in resolution even though to me the apple buds still sound pretty dang good. Other ppl will have better explanations I’m sure and it’s debatable what resolution means to people in this hobby. Either way In today’s market, $50-300 can get you some incredible sounding IEMs
r/iems • Difference between cheap and expensive iems ->I love them, it’s about perfect tuning for me, I add a bass shelf to all planar IEMs and headphones I’ve had and I don’t need to with this one. Kick drums hit really nice as well and I’m not wanting for any details in the mids or treble, it’s really quite great IMO. I like it better than the astral and s12 ultra I have in right now
r/iems • What’s the price range where IEMs hit “peak value”? After what point is spending more basically pointless? ->I compared a bunch of IEMs at audio shops. While I don't remember which IEMs sounded brighter to me, I can recommend the Letshuoer S8 for its clarity and balance of bass and treble. I listen to a lot of EDM and pop (US, K-pop, J-Pop, Eastern European, Latin/Spanish), and one of the things I compared was the, for lack of a better term, drop in Zedd's Spectrum ("we'll RUN where lights won't chase us"). The S08s had that IT factor in Spectrum, and the sounds did not bleed together. I found it was similar to the Simgot EW300, but I chose the S08 because it wasn't as bass heavy, felt more balanced, and I presumed I wouldn't be as fatigued listening to them. That being said, I do not like my music too bright. I think the S12 might have been brighter than the S08, but I felt the S08 had a crisp, clear sound that accentuated what I was looking for. I'm told my preference is V-shaped.
r/iems • I’m NOT looking for a good budget IEM. ->I'm on a similar boat, but I'd dare to say that they sound lifeless to me. I do own the wu heyday and other half a dozen non planar iems and, honestly, I need to sell the s12s. The source doesn't matter, being it a desk amp or a usb dongle, they sound thin, weak and way too bright.
r/iems • Letshuoer s12 arrived, not what i expected. ->I got these a few months back and they are my new daily. Love them
r/iems • Letshuoer s12 arrived, not what i expected. ->Aint two years pretty old in the iem world especially considering 3-4 years ago iems werent that good. Yeah I guess they are kinda still entry level but I think at the time, the S12s were letshouers highest tier product. Probably should fact check this but still from my experience, they can give you hundreds of dollars experience for a fraction of the price. Tuning might not be the best but they eq pretty well with my q5k and squiglink autoeq
r/iems • Which IEM impressed you the most? ->Truthear Hexa might be good but I personally recommend the Letshuoer S12
r/iems • Moondrop SSR - upgrade recommendations ->Under 50$: Tanchjim Zero Ultima DSP, KZ Saga Under 100$: Sliivo SLA3, Letshuoer S12/Artti T10, Kiwi Ears Airoso, Under 200$: Kiwi Ears Aether It is really hard not to love these!!
r/iems • What’s an IEM you’d tell 99% of people to blind buy? ->I've just listened to them for 10-20 hours, so below are just tentative comparisons. Both have great vocals as you know. The Diva vocal leans more on clarity and energy, while the mmk2 vocal is smoother and more intimate. I feel mmk2 has more forward vocals. But these might be due to the overall balance. Diva has a slight emphasis on female vocals and is overall brighter (particularly in the mid (bass) mode). Many ppl feel female vocals are better on IEMs with an elevated upper mid, bc then female vocals are more forward. Not me. In particular, Harman tuning is a bit dry and shouty for me. I prefer mmk2 vocals a bit. I guess the magic of mmk2 mids is that the vocals are forward yet neutral. But, overall, Diva has more wow points, particularly micro-dynamics in bass and treble. The soundstage on Diva is also a bit larger and more even-spaced. *Do try all the 3 modes of Diva*! They are different and all good for some ppl. I saw each of them was deemed best by different ppl respectively. For me, the max mode is so much better than the mid one; the mid mode sounds no better than sa6 mk2 or DUSK, while max mode might sound the best in my collection. I need mid-bass! (NOT the mid bass mode lol)
r/headphones • I got some best IEMs at different prices ->Truthear Zero red, non-flawed tuning, smooth vocal, and fun! S12 has more wow points (e.g. soundstage and treble) but is unnatural. Hexa is more Harman tuning, if u like Harman, get it. Harman is always lean and dry and a bit dead for me.
r/headphones • I got some best IEMs at different prices ->Hifigo on aliexpress is currently doing a clearance sale [here](https://www.aliexpress.com/item/1005006856772123.html). consider finding another 10$ and buy one of the 8 remaining s12s. i guess if you *really* love bass you can get the 7hz Legato. absolutely no clue on the other offerings. Actually now that i think of it. You might as well get a artti t10 if you are interested in the s12s. basically the same expect cheaper.
r/iems • Guys which one should I buy ->The first wave of well-tuned planars (Timeless/S12/etc). That level of technical performance for 200 bucks (or less) was (and still kinda is) insane.
r/iems • Which IEM impressed you the most? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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