Tag Archives: Planar Magnetic IEMs

Letshuoer S12 IEMs 14.8mm Planar Magnetic Hi-Fi Earphones Review – Blockbusters!

Welcome to my review of the Letshuoer S12 IEMs that retails for around $169.

The Key Features/Specifications

– 14.8mm custom planar magnetic driver.
– Either 3.5mm or 4.4mm balanced jack.
– Cable – 128 strands braided silver plated monocrystalline.
– 0.78mm qual pin connector, refined reproduction low distortion.
– Aluminum alloy chassis. Complicated CNC process.
– Chassis – 5 axis CNC processing
– Dual vent hole design – The chassis has two vent holes drilled to the side of the unit to reduce pressure against the ear drums, which in turns protect users’ hearing.
– Frequency response: 20-30000Hz
– Impedance: 16Ω
– Sensitivity: 102dB/mW
– Cable length: 1.2m
– IP Rating: IPX3

Audio Tracks used for Review

For all my audio reviews, I use the below tracks. Other tracks are also used, but these are the core songs.

– Roxy Music – True to Life (Remastered)
– Leonard Cohen – In My Secret Life
– Massive Attack – Unfinished Sympathy (2012 Mix Master)
– Eric Clapton – Layla (Acoustic Live at MTV Unplugged)
– Axel F – From Beverly Hills Cop
– Natalie Merchant – Ophelia
– CeeLo Green – Bright Lights Bigger City
– Stevie Ray Vaughan – Tin Pan Alley
– K.D. Lang – Constant Craving
– Nigel Kennedy – The New Four Seasons
– Hans Zimmer – Mountains

Before you watch the video review of the Letshuoer S12, some of you may not have heard of the Letshuoer. In the useful links, I have included a link to the about us page on their website. The pedigree of the team at Letshuoer is world class.

Video Review


One of the best IEMs that I have heard in a long time, and my personal favourite going forward. Just be prepared to be stunned at its sonic performance and musicality. Highly recommended 9.9/10.

Useful Links

Shuoer Team – https://letshuoer.net/pages/who-we-are