LETSHUOER S12 Ultra IEMs in gray with angular CNC aluminum shells, combining sleek aesthetics with durable construction.
LETSHUOER S12 Ultra IEMs in brown with angular CNC aluminum shells, showcasing premium build and ergonomic design.
LETSHUOER S12 Ultra brown IEMs with braided cable attached, highlighting in-ear fit and stylish audio accessory design.
14.8mm planar magnetic driver of LETSHUOER S12 Ultra IEMs shown in cross-section, emphasizing fast transients and high resolution.
Close-up of LETSHUOER S12 Ultra's custom planar diaphragm, designed for natural clarity and detailed high-frequency response.
LETSHUOER S12 Ultra IEMs in brown and black, made from CNC aluminum alloy for durability and lightweight comfort.
LETSHUOER S12 Ultra IEMs in brown and gray with braided cables, tuned for balanced sound and enhanced sub-bass performance.
392-core silver-plated copper cable of LETSHUOER S12 Ultra IEMs, offering superior conductivity and anti-interference performance.
0.78mm 2-pin connector of LETSHUOER S12 Ultra IEMs, compatible with mainstream cables for easy upgrades and replacements.
LETSHUOER S12 Ultra brown IEM worn in ear, showing ergonomic shell design for secure and pressure-free all-day listening.
LETSHUOER S12 Ultra IEMs with 3.5mm, 4.4mm, and Type-C DAC plugs, offering versatile connectivity for mobile and audio devices.
Full LETSHUOER S12 Ultra IEM package with accessories including cables, interchangeable plugs, and premium packaging.
LETSHUOER S12 Ultra gray IEMs with braided cable attached, designed for immersive audio and stylish in-ear wear.

LETSHUOER

LETSHUOER – S12 Ultra 14.8mm Planar Magnetic Driver IEM

₹ 15,990

    14.8mm Planar Driver Delivers Fast Transients

    CNC Aluminum Alloy Shells Provide Heft And Durability

    Balanced Tuning With Sub-Bass Boost

    392-Core Silver-Plated OFC 0.78mm 2-Pin Cable

    Bundled With DT01 DAC/Amp Dongle

    Small Shells Provide Ergonomic & Secure Fit All-Day

Color
Color: Gunmetal Gray
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Pickup available at Naraina, New Delhi

Usually ready in 1 hour

Description

Discover the LETSHUOER S12 Ultra, the last IEM in the S12 series and a 14.8mm single planar magnetic driver. This custom driver specializes in lightning-fast transients, ultra-high resolution and immersive soundstaging. Its optimized magnetic array and thin diaphragm produce authoritative sub-bass rumble, natural timbre in transparent mids, airy treble extension, and pinpoint imaging with wide staging. Premium CNC-machined aluminum alloy shells deliver solid yet lightweight construction and refined anodized finishing. The ergonomic contours ensure secure and pressure-free fit for all-day wear. Balanced tuning features a tasteful sub-bass lift, neutral-leaning mids, and smoother highs versus prior S12 models, excelling in macro-dynamics, micro-detail retrieval, instrument separation and black backgrounds for holographic presentation. The 392-Core high-purity silver-plated OFC cable minimizes microphonics. The bundle also includes a DT01 USB-C DAC/Amp dongle which provides robust power, low-noise floor and plug-&-play connectivity with mobile phones and PC.

ULTRA-FAST 14.8MM PLANAR MAGNETIC DRIVER

The LETSHUOER S12 Ultra features a single 14.8mm planar magnetic driver for lightning-fast transients and high-resolution audio. Its ultra-thin diaphragm and optimized magnetic array deliver authoritative sub-bass rumble, transparent mids with natural timbre, and precise imaging with wide soundstage. Low 16Ω impedance and 101dB sensitivity ensure easy drive from portables, minimizing distortion for clean, detailed sound across EDM, classical and more. This technical powerhouse sets a benchmark for planar IEMs.

DURABLE CNC ALUMINIUM CHASSIS

CNC-machined aluminum alloy shells offer premium solidity, controlled weight and superior durability for daily use. Semi-open back design boosts acoustic spaciousness with refined anodized finishing and tight tolerances. Precision ergonomics, fingerprint-resistant coating and gold-plated 0.78mm 2-pin sockets enable reliable connections and cable swaps. Rivals higher-end builds for long-term performance. (349 chars – expanded: Internals optimize resonances, venting pressure for natural feel while faceplate accents balance style and function, earning praise for robust construction.

392-CORE OFC CABLE & DT01 DAC BUNDLE

The set comes equipped with a 392-core High-purity silver-plated OFC cable. The design is braided in order to make it tangle-resistant. Due to the 0.78mm 2-pin connectors, the cable becomes easy to replace or upgrades. The bundle also includes a DT01 USB-C DAC/amp, which provides robust and clean power, low noise and connectivity with mobile phones & PC, all while unlocking full capabilities of the planar driver and give you a taste to true dynamics. Swappable 3.5mm/4.4mm plugs add flexibility to the mix, in order to adapt with various sources/setups

SMOOTH & ENERGETIC SOUND SIGNATURE

S12 Ultra's energetic balanced tuning includes sub-bass lift for impact, neutral-leaning mids for lifelike vocals, and smoother treble than prior S12 series iems. This set excels in macro-dynamics, micro-detail, separation and holographic staging for complex tracks. Textured bass stays controlled and highs feel airy without any sharpness or sibilance. Due to such tuning, the user can stay fatigue-free and listen to their favourite genres like pop, rock, jazz & electronic, for a long time.

ALL-DAY ERGONOMIC FIT

Ergonomic shells follow ear contours for secure, pressure-free seal and all-day comfort. Low-profile, stubby nozzles and smooth rounded edges minimize fatigue/occlusion. The shells have a lightweight build and only weigh under 10g per side. The bundle also includes silicone/foam eartips and that too in multiple sizes. This makes the S12 ultra stable for commutes, workouts or even casual listening. The shells disappear once put in ears and this leads to more immersive sessions.

Specifications

Brand Name
Letshuoer
Model Name
S12 Ultra
Driver
14.8mm Planar Magnetic (Single)
Impedance
16Ω
Sensitivity
101dB/mW
Frequency Response
20Hz - 40kHz
Cable
1.2m Silver-Plated OFC, 0.78mm 2-Pin
Connectors
3.5mm / 4.4mm (Swappable)
Shell Material
CNC Aluminum Alloy,

Box Content

    What will you get
  • 1x IEM
  • 1x Cable
  • 1x DAC/Amp
  • 1x Carry Case
  • 3x Balanced Eartips
  • 3x Vocal Eartips

Warranty

1 YEAR WARRANTY

Don't worry, Letshuoer S12 Ultra comes with a 1 Year warranty against manufacturing defects. We guarantee that every product on Concept Kart is genuine and backed by the Manufacturer's warranty.

Read more about Concept Kart's warranty policy.

Shipping Policy

FREE SHIPPING ON ALL PREPAID ORDERS

We usually ship orders on same day if ordered before 2 pm or within 24 hours if ordered later (except on holidays/sunday, where processing times may be higher) from one of our domestic warehouses based out of Delhi. It normally takes around 1 to 5 business days for delivery. We use premium service partners such as Blue dart, DTDC and Delivery for faster and reliable service. A tracking number will be provided upon shipment.

In very rare cases when order is not received after 10 business days of shipment (extended by number of days when the govt. Restricts movement of goods due to factors such as coronavirus pandemic), please contact us and we will provide you a support.