Letshuoer S12 in-Ear Earphone14.8mm Planar Magnetic Driver in Ear Monitors HiFi Wired Headphone with Detachable 2Pin Silver-Plated Monocrystalline Cable for Audiophile Musician(3.5mm, Grey)

Product Information

The LetShuoer S12 Pro is a relative easy to drive Planar Driver IEM thanks to its impedance of 16Ω and a sensitivity of approx. 102dB/mW. Sources such like USB DAC/Amplifiers (Shanling UP04 2022), Tablet’s (iPad Air 2) or ultra portable DAP’s (Hidizs AP80 Pro-X Red Copper Edition) do work just fine. In terms of quality, bass texturing is pillowy and sometimes can sound undefined, but bass speed is lightning fast and can cope with complex bass movements. There’s just a hint of mid-bass bleed, but thankfully the bass does not encroach much into the midrange. Midrange While the shells of the S12 Pro look like the spitting image of the original S12, they come in an aerospace blue hue, which is a far cry from their predecessor’s dull gray color. Sadly, there are no L and R markings on each end to identify the sides, but as per usual convention, the right terminal has a red marker. Case The provided case is practical and unobtrusive.

In conclusion, both types of eartips will provide you with satisfaction and enjoyment in your listening experience. If you prefer more bass, go for the silicone eartips. For less bass, opt for the foam eartips. silver-plated monocrystalline copper cable with 392 wires and 4 strands, 2 to 2 strands, with three interchangeable connectors. Nonetheless, there is no shoutiness in the mids, and the smoothed-out notes sound pleasing in the long run. I just wish the vocals were better articulated. Treble The midrange presentation of S12 PRO has some slight recession that I noticed especially on male vocals but it still has enough texture and depth not to sound too hollow. It has a clean, neutral and detail that will give more vividness on female vocals and most instruments especially on strings. Due to the sixth anniversary of the brand, Letshuoer has seen fit to revise one of its latest successful models: the S12. And of course, the model could not have a different name than the Letshuoer S12 PRO. For this new model, the highlights are the new Space Blue colour and the inclusion of a new modular cable, which can change its connectors to 2.5/3.5/4.4mm. It's true that the changes are not only on the physical side, but the sound has also received a slight tweak. As far as I've been able to tell, the mouthpiece filter has been changed, resulting in some subtle alterations to the overall tuning of the set. Broadly speaking, the sub-bass has been raised slightly, resulting in a cleaner transition into the mids. The mid-highs are subtly softer and the treble has been slightly lowered in both exposure and extension. The changes may not be so obvious, but they are sure to be a clear success, as both the modular cable and the changes in tuning will be eagerly awaited by users who were still hesitant to buy the S12. With the S12 PRO version, a more accurate profile has been achieved in some critical and sensitive areas. We will see all of this in the next review.The LetShuoer S12 Pro is an IEM with a small and lightweight monitor shell, which offers a pretty comfortable wearing experience with my average sized ear chonca. The passive noise isolation of the S12 Pro is on a sufficient level that is suitable for the use in relative noise environments such like a bus or a train. The mids of the S12 Pro are commendable. With the silicone eartips, both male and female vocals are clear and well-pronounced. However, they seem slightly recessed to me. This could be because the elevated bass and treble create an illusion of the mids being recessed. Nonetheless, the IEM's performance in the midrange is quite satisfactory. When I listen to Celine Dion's "Because You Loved Me" and Michael Bolton's "When A Man Loves A Woman", the vocals sound relatively forward, but not overly so, and come across as powerful and strong. I can feel the depth in their voices and the natural high notes achieved at the height of their vocal ranges. The LetShuoer S12 Pro has a lower midrange tuning that offers a good sense of depth and fullness, while listen to vocals or to instruments such like an acoustic guitar or viola. Moreover, it shows a good sense of clarity and resolution in this area, which shows how good the lows are handled by the Planar Magnetic Driver. The soundstage is wide and spacious with good positioning accuracy but it is mostly expanded in the horizontal axis without any significant depth layering and holographic relief. The product was provided by LETSHUOER for an unbiased review - You can find the S12 PRO here: https://letshuoer.net/products/lets...-ear-monitors-for-audiopiles-and-music-lovers

We conducted a review of the LETSHUOER S12 last year. Today, we will be discussing its successor, the S12 Pro, which is touted as an upgraded version. While the S12 Pro maintains most of its looks from its predecessor, it introduces a new colorway. How about the sound? Is it an upgrade, or just a sidegrade? We'll find out! Treble heads will rejoice because they'd be delighted to know that the LETSHUOER S12 Pro provides an ample amount of air and energy in the treble range. It is not excessively bright or harsh, striking a balance that allows for detailed and crisp sound reproduction. In terms of negatives, the S12 Pro may be a tinge bright for treble-sensitive folk, and vocal and midrange lovers might need to consider alternatives due to a depression in the lower mids. Tests were done with a Khadas Toneboard DAC -> Schiit Asgard 3 amp, E1DA 9038, Questyle M15, Colorfly CDA M1, Tempotec Sonata HD Pro (BHD firmware mod), smartphone, and Sony NW A-55 DAP (Walkman One mod) using FLAC and WAV files. The lower treble range of the original S12 sounds a tad more brightness and dynamism, compared to the S12 Pro version, which is a bit softer and forgiving in this area. Both are pretty equal in terms of upper treble extension and resolution, while the S12 Pro has the slightly edge in terms of authority when I listen to soprano voices or to instruments such like ride or crash cymbals.Fits snugly and comfortably in my ear, but only after getting the proper angle to ram it in my ear. I have experienced multiple times where the ear tip will just come right-off if not inserted in a specific way.

The midrange of the LetShuoer S12 Pro has a moderately warm tonality and is a tad smoother compared to the original S12, which seems to be a result of a fine adjustments in the upper midrange register. The level of clarity, airiness and detail retrieval is one of the highlights of the S12 Pro in the midrange area. The general midrange presentation can be described as pretty airy and transparent. As discussed in the introduction above, the original S12 pro are marginally different from the original S12 in these areas:The provided cable is manufactured from silver-plated mono-crystalline copper, incorporating a 4 x 98-strand braid. The cable is pretty well-weaved, and is tangle-free with a chin cinch. Microphonics are unfortunately present. I was under the impression that the S12 Pro will be quite bright and harsh, and was honestly worried about how my ears will interpret its sound seeing as I’m quite sensitive to mid treble, but it never sounded harsh(unless you go ham with the volume) during my experience.