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Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.

What reviewers think

Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • Frequency response: 20-30000Hz
  • Impedance: 16Ω
  • Sensitivity: 102dB/mW
  • Cable length: 1.2m
  • IP Rating: IPX3
  • Driver Size: 14.8mm planar
S12 is a pair of Hi-Fi Earphones created for music lovers. It is planar driver in ear monitors with wider stage, better clarity, faster transients, better treble extension and great resolution. It will be your best companion to your everyday music enjoyment.
Manufacturer Site

Brand highlights

Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:

LETSHUOER DZ4  

  • Positioning: A budget-oriented IEM designed for everyday use with a unique dynamic driver setup.  
  • Description: Combines three 6mm titanium dome dynamic drivers with a passive filtering module that helps maintain clarity in a compact design. Compared to other models like the DX1 or S08, it offers basic sound performance ideal for standard personal use at a low price, suitable for buyers with modest budgets and conventional connectivity needs.

LETSHUOER S08  

  • Positioning: An entry-level planar IEM using advanced production techniques.  
  • Description: Uses a fourth-generation dual voice coil planar driver enhanced by nanoscopic magnetron sputtering and a PTR elastic film surround to improve stability and low-frequency response. Compared to the DZ4 and DX1, its planar technology delivers a distinct tonal character that may appeal to users needing precise monitoring in controlled environments.

LETSHUOER DX1  

  • Positioning: A mid-range IEM featuring a self-developed 11mm dynamic driver with additional tuning features for versatile listening.  
  • Description: Includes a built-in 5kHz notch filter and high-precision CNC components that help reduce distortion and refine sound detail. Relative to the entry-level models, it provides enhanced clarity and richer detail.

LETSHUOER Mystic 8  

  • Positioning: A high-resolution IEM designed for live performance and detailed monitoring with an eight balanced armature driver array.  
  • Description: Features eight BA drivers paired with a low-pass filtering module, three-way electronic crossover, and four-way acoustic tube to ensure controlled bass and crisp high frequencies. Compared to the dynamic models, its complex driver configuration offers greater sound precision and depth.

LETSHUOER Cadenza  

  • Positioning: The flagship in-ear headphone, built with a hybrid driver system and premium materials.  
  • Description: Combines 12 hybrid drivers, a titanium chassis, and a 204-strand cable made from 6N monocrystalline copper and silver hybrid elements to deliver balanced tone and clarity. When compared with all other products in the lineup, it is aimed at audiophiles who require cutting-edge technology, superior build quality, and advanced functionality for critical listening and professional studio use.
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Avg. Product Price
$500
Used For Sale
0
 Available (Scroll Down)
Brand Popularity
814
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
6
Founding Year
2016

Our take on the brand

Letshuoer is a hifi audio brand known for democratizing planar-magnetic IEMs with their S12 model, which brought exceptional technical performance to the $150 price point. The brand sets itself apart through unconventional driver architectures like their proprietary R-Sonic passive filtering module for pressure relief and staging expansion.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

From our interview with
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Brand Page

Used

Letshuoer

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How to buy

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