Introduction to Eminent Ears and the Gemstone Series

Eminent Ears, based in Hong Kong, started with a simple yet ambitious vision: to craft affordable, well-tuned endgame in-ear monitors (IEMs) that deliver audiophile-quality sound accessible to everyone. After the successful launch of RUBY, the brand is now set to introduce its second project in the Gemstone Series: SAPPHIRE. With this release, Eminent Ears aims to offer a variation of RUBY, designed for long listening sessions, with enhanced bass and a warmer, more relaxed treble. This new model, while sharing key elements with RUBY, reflects the brand’s continued commitment to innovation and feedback from the audiophile community.

Design Inspired by Sapphire Gemstone

The SAPPHIRE IEM takes its inspiration from the symbolic properties of sapphires — representing wisdom, honesty, and loyalty. The soothing blue faceplate of SAPPHIRE represents purity, rationality, and elegance. This refined design is paired with a body made from medical-grade resin, complemented by rhinestones, creating an ethereal visual effect. The internal drivers are suspended, sparkling within this "sea of stars," reflecting the community-driven evolution of the product. SAPPHIRE embodies the balance between innovative design and technical excellence, representing Eminent Ears' growth and the collaboration between the brand and its dedicated supporters.

A Warm, Relaxed Tuning for Extended Listening

SAPPHIRE builds on the foundation laid by RUBY, featuring a similar dynamic driver and balanced armature configuration. However, it introduces a significant upgrade with the inclusion of a Sonion bone conduction driver, designed to enhance bass impact and tactile sensations, particularly in the bass-mid region. This addition allows SAPPHIRE to offer a more textured and detailed bass performance while preventing bass from bleeding into the upper frequencies. This means listeners can enjoy extended listening sessions without fatigue, as the relaxed treble and enhanced bass technicalities complement each other seamlessly.

The Tribrid Driver Configuration: Dynamic, Balanced, and Bone Conduction Drivers

The SAPPHIRE IEM boasts a tribrid driver setup: it combines a SPM complex diaphragm dynamic driver, four Knowles balanced armature drivers, and a Sonion bone conduction driver. This configuration ensures an unparalleled listening experience, with enhanced bass texture, a detailed midrange, and clear treble. A carefully engineered four-way crossover ensures precise frequency management, contributing to the IEM's excellent soundstage and separation. Whether you enjoy orchestral compositions or modern electronic music, SAPPHIRE provides an immersive and well-balanced audio experience.

Individual Chamber Resonance System (ICRS)

SAPPHIRE retains the innovative ICRS (Individual Chamber Resonance System) technology, first introduced with RUBY. Inspired by the design principles of concert halls and orchestras, ICRS ensures a wide, immersive soundstage. The technology works by adjusting the distance and angle of each driver and implementing individual chambers for each group of drivers. This creates a resonance effect that provides excellent separation between instruments and a spacious listening experience. With this system in place, SAPPHIRE delivers exceptional spatial imaging and clarity, ideal for both detailed and dynamic musical genres.

Collaboration with Vortex Cables

To ensure optimal performance, Eminent Ears has partnered with Vortex Cables to create a custom cable that complements SAPPHIRE’s exceptional sound quality. The cable features silver-plated copper alloy conductors and cross braiding, offering high-frequency connectivity and enhanced durability. The 4.4mm balanced plug and gold-plated copper connectors ensure that SAPPHIRE performs to its highest potential, contributing to its expansive soundstage and clear, balanced audio reproduction.

Technical Details

Brand
Eminent Ears
Product Name
SAPPHIRE
Drivers
1x SPM Dynamic, 4x BA, 1x Sonion BCD
Frequency Range
20Hz ~ 20kHz
Impedance
14Ω
Sensitivity
108dB
Shell Material
Medical-Grade Resin
Cable Material
Silver-Plated Copper Alloy
Plug
4.4mm Balanced
Cable Length
123cm (±2cm)
Inside the Box
  • 1 x Eminent Ears SAPPHIRE
  • User Manual

30-Day Return Policy

You may return any non-customized product that is still factory sealed, within 30 days upon receiving it. For items that are damaged, incorrect, or faulty upon delivery, Linsoul will assess the issue and provide a solution accordingly.

1 Year Warranty

The Eminent Ears SAPPHIRE Comes with a 1 year warranty on the In-Ear Monitors and 3 month warranty on the cable.

Processing Time

This product is in Pre-order period. Pre-orders are provided for items that have not reached us and will take some time to be shipped out.

Pre-order Period: 2-4 weeks.

Note:

  • No cancellation of orders once ordered.
  • All orders to be shipped out sequentially.

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