LetShuoer S15 In-Ear Headphones

Planar Dual Back Cavity Diaphragm + R-Sonic Passive Filter In-Ear Earphones

• 14.8mm Third-Generation Planar Dual Back Cavity Diaphragm + 6mm R-Sonic Passive Filter Module
• New Acoustic Structure for Enhanced Sound Quality
• Two Acoustic Tubes with Filter Switch
• Smooth Transition and Rich Sound Layers Across the Spectrum
• High-Precision 3D Printed Front Chamber
• CNC Machined Aluminum Alloy Shell
• Lightweight, Ergonomic Design with a Delicate Feel
• 216-Strand Silver-Plated Single Crystal Copper Cable
• Detachable Interchangeable Plugs (2.5mm, 3.5mm, 4.4mm) with 90-Degree Right-Angle Connectors
• 0.78mm 2-Pin Connector

Product Introduction

Every Detail Contributes to Sound Quality

The S15 uses a third-generation 14.8mm planar dual back cavity diaphragm. This setup gives the S15 a wide soundstage, excellent transient response, and precise sound reproduction. To ensure smooth sound transitions, the S15 features a structure with two acoustic tubes and a filter crossover solution, achieving an excellent tonal balance.

6mm Passive Filter Module Outside the Planar Diaphragm

The passive filter module incorporates LETSHUOER's self-developed R-Sonic dynamic harmonic technology, filtering the sound energy positively through a proprietary filter.

Refined Crossover Solution for Clear Three Frequencies

The S15 employs a dual physical conduit filter crossover solution, reasonably allocating the energy between the planar unit and the passive filter module to reduce music distortion and ensure smooth and clear three-frequency transitions. This approach preserves every sound detail, delivering excellent sound quality balance.

Collaboration with HEYGEARS for High-Precision Acoustic Chamber

The S15's chamber is developed in collaboration with HEYGEARS, using thousands of ear canal models to create a shape that fits most ears. This design ensures stability and comfort, with the internal structure precisely optimized to achieve accurate acoustic configuration and very low distortion. The rear cavity combines CNC machined aluminum alloy with sandblasting and anodizing processes, providing a delicate touch that reflects the pursuit of earphone aesthetics.

Ergonomic Polished Chamber for Most Ears

The S15's chamber is ergonomically polished to fit most ear shapes, providing stability and comfort. The internal structure is precisely optimized to help achieve precise acoustic configuration and very low distortion.

High-Quality Silver-Plated Copper Cable with Three Interchangeable Plugs

The S15 comes with a high-quality 216-strand single crystal copper silver-plated cable to ensure stable sound transmission and enhance control over music details. The 0.78mm dual-pin design is compatible with more excellent cables on the market, allowing for easy upgrades and matching. The included detachable 2.5mm, 3.5mm, and 4.4mm 90-degree angle plugs are compatible with various device interfaces for hassle-free connections.

Specifications

• Model: S15
• Driver: 14.8mm Dual Back Cavity Planar Driver + 6mm R-Sonic Passive Filter Module
• Front Chamber Material: 3D Printed Resin
• Rear Chamber Material: Anodized Aluminum
• Frequency Response Range: 20Hz~40kHz
• Impedance: 30Ω
• Sensitivity: 106dB
• Audio Interface: 2.5mm/3.5mm/4.4mm Interchangeable Plugs
• Cable: 1.2m (216-Strand Single Crystal Copper Silver-Plated)
• Origin: China