FiR Audio Krypton 5

The Krypton 5, a flagship model within FiR Audio’s Frontier Series, represents the epitome of 5-driver portable sound. It is praised for its technical prowess, delivering exceptional quality and clarity. With a nuanced approach, the Krypton 5 handles each note, instrument, and layer delicately, showcasing a textured presentation that audiophiles find crystal-clear and enjoyable.

At the core of the Krypton 5’s sonic signature is its snappy and impactful bass, forming a robust foundation for the overall audio experience. The incorporation of 4 balanced armature drivers and a 10mm dynamic driver for lows, channeled through the Kinetic Bass port, contributes to its impressive performance.

As part of the Frontier Series, the Krypton 5 is available in both Universal-Fit and Custom-Fit versions, catering to different preferences and ensuring a high-quality listening experience for a diverse range of users.

The Custom-Fit version of the Krypton 5 boasts a durable acrylic construction, offering users a range of elegant color and design options. On the other hand, the Universal-Fit version features a machined aluminum shell and eye-catching sapphire crystal glass faceplates, combining both durability and aesthetic appeal.

FiR Audio Krypton 5

• Machined Aluminum Shells (UIEM)
• Sapphire Glass Faceplates (UIEM)
• ATOM XS Interchangeable Modules (UIEM)
• Leather Protective Case (Audiophiles)
• Free Custom Artwork & Premium Faceplates (CIEM)
• Internal ATOM and ATOM X Modules (CIEM)
• Aluminum Protective Case (Musicians)

Driver Configuration

• 1x 10mm Kinetic Bass Dynamic Driver
• 2x OpenDriver Balanced Armature Driver for mids
• 1x OpenDriver Balanced Armature Driver for high-mids
• 1x OpenDriver Balanced Armature Driver for highs (with Sound Reflector)

Technical Specifications

• Freq. Range: 20-20kHz
  Impedance: 22ohms

KINETIC BASS – You can feel it!

Kinetic Bass is a revolutionary hybrid conduction technology that elevates the In-Ear Monitor sound experience to unprecedented heights. Kinetic Bass isn’t just about hearing bass; it’s about feeling it, connecting with your music on a profound level.

Traditional in-ear monitors often fall short in providing depth and sensation because they only deliver half of the sound equation. In a natural open-ear setting, you perceive sound through two avenues: air conduction and bone conduction. Air conduction involves hearing with your eardrums, while bone conduction transmits sound through the bones in your head to the inner ear (cochlea). Hybrid conduction integrates both air and bone conduction, providing a comprehensive sonic experience.

With Kinetic Bass technology, a specially designed 10mm dynamic driver is strategically positioned, open and ported, directly facing the exterior of the IEM shell. This configuration allows low-frequency sounds to be directly channeled to the ear cartilage and the surrounding area. These low frequencies are then converted into kinetic energy, reaching the inner ear through bone conduction. The result is an immersive sound quality with bass that you not only hear but can also feel—a heightened dimensionality with an unparalleled low-frequency extension that takes your audio experience off the charts.

Simply release the pressure – ATOM Venting

Introducing the Air Transferring Open Module (ATOM), a groundbreaking pressure relief system designed to alleviate the buildup of pressure in a sealed ear canal, thereby significantly reducing listener fatigue and enabling extended, comfortable listening sessions.

Say goodbye to pressure discomfort and embrace easy listening.
In traditional in-ear monitors, the ear canal is hermetically sealed. As the diaphragm of the miniature speakers (driver) moves to generate sound, it creates air pressure with no outlet, directly impacting the ear drum. This pressure triggers the ear’s acoustic reflex, causing the ear drum to tighten in defense against loud sounds, leading to listener fatigue. Prolonged exposure to this reflex may contribute to long-term hearing loss.

Experience safer and prolonged listening sessions.
The ATOM venting system prevents the triggering of the acoustic reflex by allowing the built-up air pressure to escape. This enables your ear drums to remain in their natural, relaxed position, facilitating longer and safer music enjoyment without ear fatigue. The result is a broader soundstage that feels more natural, akin to an open-ear listening experience, while retaining all the advantages of in-ear monitors.

Tailor your listening experience with interchangeable options.
ATOM technology offers four distinct options, each providing varying levels of isolation and bass. The Frontier Series Universal-Fit models feature the effortlessly swappable and super ergonomic ATOM XS modules. For Custom-Fit models, you can choose between internal ATOM or ATOM X modules, both of which are interchangeable, allowing you to customize your listening experience to suit different preferences and musical genres.

OPEN ACOUSTICS System

Introducing the Open Acoustics System, a paradigm shift in in-ear monitor technology designed to deliver an expansive and natural listening experience by eliminating traditional sound tubes. This innovative system comprises three key components: Open Drivers, Sound Reactor, and Sound Reflector.

Open Drivers
Our Open Drivers represent a departure from conventional designs by forgoing sound tubes. Instead, they radiate sound directly into the Sound Reactor, allowing the audio to flow freely to the ear canal. This revolutionary approach results in a significantly larger soundstage and a more pure, natural, and open listening experience, unencumbered by the resonances introduced by traditional tubes.

Sound Reactor
The Sound Reactor acts as a chamber that shapes the sound emitted directly from the open drivers. Unlike many traditional in-ear monitors that use dampers and filters, the Sound Reactor harnesses natural acoustics to sculpt the audio profile. This approach ensures a nuanced and unadulterated sonic output, contributing to the overall purity and authenticity of the listening experience.

Sound Reflector
Situated in the canal stem, our open high driver features a distinctive Sound Reflector. This component is designed to direct high frequencies precisely into the ear canal. The outcome is a remarkable rendition of smooth and airy highs with exceptional extension. By incorporating the Sound Reflector, we achieve a level of audio clarity that surpasses the closed-in and stuffy sound often associated with traditional IEMs.

The Open Acoustics System redefines in-ear monitor technology, offering a refreshing alternative to the constraints imposed by sound tubes. Experience a vast soundstage, natural acoustics, and unparalleled clarity with our innovative approach to audio design.

Durability – FiR RIGID Technologies

This is FiR Audios suite of proprietary innovations that set the industry standard for reliability, durability, and serviceability in their in-ear monitor products.

Rigid 2-Pin
Boasting the most robust 2-Pin connection available, it is rated for an impressive 1,000 connections without any issues.
Compatible with any 2-Pin standard, it features a revolutionary quadrant socket design, ensuring a secure connection and preventing loosening over time.

Rigid Snap Screen
An acoustically transparent mesh screen that serves as a protective barrier, preventing debris from entering the canal stem. Equipped with snap-right technology for easy replaceability if needed, ensuring a consistently clean and clear audio experience.

RCX – Rigid Coaxial
Our proprietary IEM connector, the RCX, was meticulously developed to create the ultimate IEM connector experience. Rated for an impressive 5,000 connections, this connector is available on our CIEM models, ensuring long-lasting performance and reliability.

Rigid 3D Printed Shell
Experience unparalleled comfort and durability with our CIEMs featuring the Rigid 3D Printed Shell. Utilizing a proprietary 3D scanning and printing process, we achieve an exceptional fit that makes you forget you’re wearing IEMs. Our shells are made 20% thicker than the industry average, providing superior protection for both external and internal components, minimizing the risk of damage.

At RIGID Technologies, we prioritize excellence in craftsmanship, ensuring that our in-ear monitors not only deliver exceptional audio quality but also stand the test of time. With these proprietary technologies, we aim to provide users with an unparalleled listening experience coupled with unmatched reliability and durability.