If it is plastic sealed when you get it, it should remain plastic sealed. Some types of goods such as CIEMs and custom cables cannot be returned. The CNC aluminum body with anodized shells feels durable, and overall fit and finish belie their low price tag. Subtleties like the machining marks around the Zeos logo add to the appeal. Comfort and isolation Microdynamics are middling, as the excessive sub-bass masks low-level details and subtle shifts in volume. The treble on the Z12 can be fatiguing at times. Comparisons Vs 7Hz Timeless and TinHiFi P1 Max

Reviewer collaborations are all the rage nowadays. What started as a way to “test-drive” the ideal tuning of some popular reviewers has now become an entire product line.The S12 Pros paired beautifully with my Xduoo MT300, hybrid tube amp. On my Littlebear B4X, the treble was incredibly good and the mids forward, but the definition on the bass suffered a little, it was nontheless a pleasant sound but, what you need to remember is that getting the right pairing for you is what is important. The elegant kidney shaped earpieces are made of aluminium alloy, painted in blue as opposed to the grey of the original S12. As with the original S12, there is a chrome accented on the square protrusion on the face of the IEMs, rather like a top quality car with chrome trims. I must say the combination looks quite elegant to me, with the contrasting blue colour. The earpieces are medium sized with an almost flat inner side to the earpieces and quite light, although they brim with good quality. The rear surface of monitors sports a serial number, the product branding and Left or Right markings in white color.

Stage is wide open, and you can pinpoint things easily even on busy songs, it has good depth and height as well. The separation of each instrument is clearly noticeable. The technicalities in general are much better than most in this price range.The Shuoer S12 Pro comes with some minor but audible improvements over the original S12, which is one of my favorite Planar Driver powered In-Ear Monitors. The general sound signature is mildly warm, relative smoother compared to the OG S12 and shows an excellent entertaining factor thanks to its deep, fast and impactful manner lows, transparent and lively midrange and well pronounced and extending upper midrange tuning and treble tuning.

It is boosted here but it mainly adds some kind of a metallic - artificial hue to the treble that being fatiguing. The upper midrange of the LetShuoer S12 Pro is pretty highlighted and dynamic, while it shows a slightly smoother overall response in this are compared to the original S12.Female voices and instruments such like side flutes, cellos or pianos do sound pretty lively, slightly saturated and detailed. The extension and authority of this area is on an excellent level and meets my expectations from an IEM at this price range. I just wish the tuning changes were more than just a couple of dB of bass boost. As far as collaborations go, the Letshuoer Z12 is fairly vanilla, with the color scheme adding most of the glamor. Behind the (strange) name, two senior engineer: Danny To, ex engineer for Panasonic and sales director of a multinational technology company, and Jeff Wong, ex-head of Dah Chong Hong Group and Department director of ZhongSheng Group. Big heads, frustrated not to get their ideal sound, who decided to open up a company and create their own products – you know the drill. Most of these issues can be solved via EQ if you turn down the somewhat excessive (+10dB over lower-mids) boost below 100Hz. Then again, this extra bass adds to the “fun factor.” Nonetheless, the driver is capable enough to handle such EQ, so I encourage testing things out. MidrangeI've had S12, and these are basically has the same build quality as it's original- top-notch metal shells with anodized blue color for the Left bud & red for the Right bud. Unlike its original, Z12 really does well on standing out lol

Which Planer Magnetic earphones deliver for you? Planar drivers are extremely capable drivers and there is currently an avalanche of Planar earphones on the market. I had the pleasure of listening to the S12, the original Letshouer planar earphones, lent to me by a kind friend. Good fun! Do the S12 Pros deliver?I just love the sound and clarity of the s12 iems. I cannot understand the high quality of iems you can get these days for such low price. Above all else, the timbrel accuracy, and decay of notes puts the S12 Pros at the top of my list of Planar Magnetic earphones……so far. Do not hold me to it in this fast changing environment. The S12 and S12 Pro are twins with minor changes that are audible in the upper midrange and treble area. The S12 Pro has a slightly warmer tonality compared to the original S12 that should be a result of the particularly tamed treble register. When it comes to the soundstage of the LetShuoer S12 Pro, I can say that it offers an adequate performance in terms of separation, layering and placement of instruments and vocals. The soundstage of the S12 Pro has a pretty spacious and airy atmosphere with good sense of wideness and moderate level of depth and height.