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LETSHUOER’s S12 Pro IEMs Utilize 14.8mm Custom-built Planar Magnetic Driver

LETSHUOER’s $169 S12 Pro IEMs utilize a custom 14.8mm planar magnetic driver and come with a wide range of connectors.

LETSHUOER S12 Pro Wired IEM

We spent some time at CanJam NYC 2023 with the LETSHUOER team and throughly enjoyed our opportunity to try the new Cadenza 12 IEMs that will set one back almost $2,300 USD; which is a lot of money for a pair of universal IEMs. Before we left the booth, we were handed a pair of inexpensive IEMs to try because the company has really earned its reputation creating universal IEMs below $400 and the Head-Fi crowd has always been rather bullish on the original S12 IEMs that utilized a planar magnetic driver for under $200.

The new S12 Pro are designed to give Linsoul and FiiO some competition in this category and that’s a really good thing for consumers who still desire a pair of wired IEMs and don’t have a huge budget.

LETSHUOER S12 Pro IEM

LETSHUOER have been producing high-quality in-ear monitors (IEMs) since 2016. ​ The S12 Pro, build upon the success of its ever popular S12’s and feature a custom 14.8mm planar magnetic driver that delivers stunning detail with a punchy, taut bass, defined mid-range, and clear treble. ​

Thanks to the S12 Pro’s sensitivity of 102db, they are able to pair well with a host of different devices, including DAPs, laptops, smartphones and portable DACs.

Constructed using a five-axis machining process, the S12 Pro’s smooth Deep Space Blue aluminium chassis has been meticulously designed to deliver a snug, comfortable fit.

LETSHUOER S12 Pro IEM Connectors

By featuring multiple vent holes on both sides, the audio engineers at LETSHUOER have worked to alleviate any negative pressure build-up within the ear canal that can be sometimes be experienced when wearing IEMs for extended periods of time. ​

In addition, the minimalist profile of the S12 Pro chassis — together with an independent rear acoustic chamber — minimises unwanted reverberation and produces a natural, open soundstage.

To further ensure unwanted distortion is avoided, the S12 Pro’s dual-pin cable connectors have been tooled as a separate element of the chassis, angled away from the faceplate.

LETSHUOER S12 Pro IEM Top and Bottom

The cable supplied with the S12 Pro is constructed from silver-plated monocrystalline copper and comprises four 98-strand cores, woven together, for a total of 392 separate strands.

Detachable from the S12 Pro IEMs thanks to the standard 0.78mm dual pin connectors, the source-end of the cable features a modular design which allows the user to swap out a number of various jack-types, dependent upon what source equipment is being listened to. ​

2.5mm balanced, 3.5mm single-ended, and 4.4mm balanced modular connectors are provided.

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Specifications:

Headphone TypeIn-ear Monitors (IEM)
DriversCustom 14.8mm Planar Magnetic
Sensitivity102dB
Impedance 16 Ohms
Frequency Response20Hz – 20kHz
Cable Composition392-strand Silver-plated Monocrystalline Copper
Detachable CableYes

In the Box

  • 1 x LETSHUOER S12 Pro IEMs
  • 3 x Foam Tips (S/M/L)
  • 3 x Black Silicone Ear Tips (S/M/L)
  • 3 x White Silicone Ear Tips (S/M/L)
  • 1 x Headphone Cable
  • 1 x 2.5mm Balanced Modular Jack Plug
  • 1 x 3.5mm Single-ended Modular Jack Plug
  • 1 x 4.4mm Balanced Modular Jack Plug
  • 1 x Leatherette Carry Case

Price & Availability

The LETSHUOER S12 Pro are available now for $149 at Amazon.com in nebula grey or frosted silver or £169 at Amazon.co.uk.

Related reading: LETSHUOER Announce Cadenza 12 Flagship IEMs

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