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View full detailsIn 2018, former 64 Audio CEO Bogdan Belonozkho and his partner Daniel Lifflander teamed up to create a new IEM company called FiR Audio. Using over ten years of experience in the audiophile and pro-audio market, Bogdan has delivered innovative audiophile products like The Cable Tester, headphone vacuum cleaners, custom IEM cables, and of course, universal and custom in-ear monitors.
Browse through our collection of FiR Audio IEMs and discover some of the best premium in-ear monitors from FiR Audio. Buy yours online today.
FiR Audio offers two unique IEM models - Electron Series and Frontier Series. The Electron Series has two variants: the Electron 12 and Electron 10, and the Frontier Series has four: Xenon 6, Radon 6, Krypton 5, and the Neon 4. All these options come in both universal and custom shells.
You can build your unique set of IEMs through the FiR Audio IEM Designer on their official website. Pick your base IEM, choose your preferred ATOM integration, select your preferred cable connector, and customize your IEM’s shells using various faceplate materials, colors, and logos.
FiR Audio offers a wide array of customization options, and you can even upload your own Custom Artwork and make your FiR Audio in-ear monitor truly your own.
Custom-molded in-ear monitors offer an unbeatable combination of sound, comfort, and durability, making them a great choice for professional audio work.
Built using an accurate impression of your ear’s unique anatomy, custom-molded IEMs offer a glove-like fit that disappears in your ear, resulting in comfort and fit you won’t get with universal in-ear monitors. Sound is improved as well, thanks to the superior fit and noise isolation, and durability is a step above due to more stringent quality control.
Premium features come at a premium price, so expect to pay extra for custom-molded in-ear monitors. When it is all said and done, custom in-ear monitors will be well worth your money, as you’re getting unbeatable quality, sound, and comfort by going with custom-molded IEM.
At HiFiSoundGear, getting Custom IEMs has never been easier. Just choose your preferred CIEM, proceed through checkout, and we’ll reach out to you with instructions on choosing your custom options. We’ll even help find audiologists near you so you can get your impressions done as soon as possible.
Click the button below to explore the wide range of Custom IEMs from HiFiSoundGear. Proceed to checkout with your preferred CIEM model, and we’ll handle the rest.
Price: $2,999.00
*comes with 1-Month TIDAL HiFi Plus Subscription
**Custom-molded options are available for this model
If it’s a high-end in-ear monitor you want for gaming, look no further than the FiR Audio Krypton 5.
The Krypton 5 is one of four Frontier Series IEMs introduced in 2022 by FiR Audio. Krypton 5 is FiR Audio’s lower-middle IEM offering, sporting the same machined aluminum shells, Kinetic Bass technology, ATOM Venting, and RIGID tech found in other more expensive Frontier Series IEMs.
Driving the Krypton 5’s sound is one 10mm Kinetic Bass Dynamic Driver and four Balanced Armature drivers for the mids, high-mids, and highs. The sound the Krypton 5 produces is some of the best in any IEM right now.
The bass is powerful, punchy, and tight, the mids are natural and clear, and the treble is incredibly smooth. The Krypton 5’s powerful sound can instantly elevate your gaming experience. Its true-to-life sound and accurate 3D positioning will make you feel like you’re part of the action.
Further improving your gaming experience is the wide soundstage of the KR5. The expansive soundstage provides enough space for sounds to fully resonate within the mix, giving you a better sense of where the sounds are coming from.
Gaming sessions can get very long and intense, so comfort is something that you should consider. With the Krypton 5’s small and lightweight shells, you can wear them without fatigue for as long as you want. The ATOM Modules help relieve in-ear pressure for a distraction-free gaming experience.
Play your favorite first-person shooters, action, or adventure games with life-like sound quality and pinpoint sound accuracy with the FiR Audio Krypton 5.
Price: $1,799.00
*comes with 1-Month TIDAL HiFi Plus Subscription*
Multi-driver high-end IEMs often come in large, bulky shells, making fit challenging for anyone with smaller ears. You won’t have to sacrifice sound for a better fit with the Electron 12 - FiR Audio’s best single-driver IEM, and one of the best IEMs you can get if you have smaller ears.
The FiR Audio Electron 12 is a single-driver premium IEM, featuring FiR Audio tech like ATOM Venting, Tactile Bass, and Swap X for the ultimate sound, comfort, and durability.
The Electron 12 delivers rumbly, yet tight and punchy bass that you can feel. The Electron 12’s Tactile Bass technology pumps bass vibrations directly to the shells to provide a tactile bass experience.
Large 12mm Dynamic Drivers reach deep into the sub-bass to give you a rumbly bass presentation that’s perfect for bass-heavy tracks, with enough speed to keep up with quick bass lines without sacrificing any detail.
The midrange on the E12 is clean and very musical. The slight lower mids boost gives vocals extra power and body for a satisfyingly energetic listening experience. Instruments like drums, guitars, and keyboards sound very natural and life-like on the E12.
The treble on the E12 is clear and smooth. There’s enough treble to provide some sparkle in your favorite music, but the overall presentation is smoothed out to highlight the E12’s fantastic bass and midrange tuning.
As soon as you hold the FiR Audio E12, you’ll notice the high-quality aluminum shells that are both lightweight and very robust. The E12’s shells are small enough to fit anyone with smaller-than-average ears, and the slim nozzles ensure you won’t experience fit issues.
Overall, the Electron 12 is a solid single-driver IEM that sounds great and offers a
non-fatiguing fit and sound. Something audiophiles with smaller ears will appreciate.
Price: $3,899.00
*comes with 1-Month TIDAL HiFi Plus Subscription
**Custom-molded options are available for this model
The Xenon 6 is the best IEM in FiR Audio’s stable when it comes to bass. Bassheads will love the Xe6’s visceral bass impacts and its thick and warm sound presentation.
Alongside the Krypton 5, the Xenon 6 is one of four Frontier Series IEMs that FiR Audio released back in 2022. It features stainless steel shells, Kinetic Bass technology, ATOM Venting, and RIGID tech found in other Frontier Series IEMs like the Neon 4 and Krypton 5.
Tuning-wise, the Xe6 features a v-shaped tuning with elevated bass, recessed mids, and extended treble.
The bass on the Xe6 is seriously impressive - deep, powerful, and rumbly. Xenon 6 produces wallops of bass and does so in a controlled and detailed manner. The Kinetic Bass technology and Open Acoustics design help drive a sense of tactility to the Xe6’s bass impacts. You hear and feel the bass at the same time, lending to a very intense bass presentation that will appease die-hard bassheads.
Midrange takes a step back in the mix on the Xe6 due to the elevated bass response. Voices get good power and body, which complements male vocals perfectly, while female vocals get a lush and thick sound. Instruments are presented with substantial body and weight, giving tracks more energy and power.
The treble on the Xe6 is very smooth. There’s just enough treble to give tracks a sparkly and airy presentation.
Build quality and comfort is top-notch on the Xenon 6. The gold-machined aluminum shells feel solid and smooth to the touch and offer a very good fit, even for those with smaller ears. One thing to note about the Xe6 is that it is quite heavy despite the small shells. Thankfully, the included Scorpion cable’s ear guides help with on-ear fit and comfort.
Bassheads need not look any further than the FiR Audio Xenon 6. Its powerful bass, stunning looks, and robust build make it the IEM to get for those looking for the ultimate bass sound and feel.
Price: $3,299.00
*comes with 1-Month TIDAL HiFi Plus Subscription
**Custom-molded options are available for this model
The FiR Audio Radon 6 is a limited-edition in-ear monitor made to commemorate FiR Audio’s 5th anniversary. It is available in universal and custom-fit models and offers improved sound over the already impressive Xenon 6.
FiR Audio has taken everything they have learned from the Neon 4, Krypton 5, and Xenon 6 to make the Radon 6 their best IEM yet. Powered by one 10mm dynamic driver, four Balanced Armatures, and one electrostatic driver, the Rn6 delivers a superbly detailed bass response that bass players will find very satisfying.
Like its Xenon 6 sibling, the Radon 6’s bass is easily its best trait. FiR Audio’s Kinetic Bass technology works - you feel the bass on the Radon 6, which helps elevate the bass experience to another level. Bassists will love the Rn6’s bass - a type of bass presentation that gives bass notes a very textured and detailed sound.
Everything sounds natural and clear throughout the midrange. Vocals and instruments are presented with satisfying weight with a very accurate tone and placed slightly forward in the mix for a detailed listening experience. Bass players will appreciate the extra note weight, highlighting higher-frequency bass guitar notes nicely in the mix.
Treble on the Rn6 is well-extended and exciting. The generous treble extension adds sparkle and energy to high-frequency sounds and reveals details on your favorite tracks you’ve probably never heard before.
FiR Audio used updated shell material for the Radon 6. Gone are the heavy stainless steel shells in favor of a lightweight machined aluminum unit. The new shell material, alongside the small and lightweight build, makes the Rn6 an easy IEM to wear for longer sessions.
Price: $999.00
*comes with 1-Month TIDAL HiFi Plus Subscription
**Custom-molded options are available for this model
Comfort and durability are kings in IEMs for live performances, and the FiR/Bellos Audio X-Series IEMs deliver on this front.
The FiR Audio X4 combines exceptional in-ear comfort through technologies like ATOM Venting and In-Air Canals and smooth and balanced sound courtesy of well-tuned dynamic and Balanced Armature drivers, making it the perfect choice for on-stage sound monitoring.
Sound is remarkable on the FiR/Bellos Audio X4 IEM. The X4 variant features a dynamic driver, and three Balanced Armatures tuned to deliver a warm-neutral sound.
You get that satisfying dynamic driver bass sound that sounds full and punchy, with generous sub-bass quantity for a deep-rumbling bass experience. The midrange is slightly warmer on the X4 IEM, which gives vocals and instruments a very meaty and full sound. The treble is smooth and offers just the right amount of sparkle without pushing high-frequency sounds too forward.
So, the FiR/Bellos Audio X4 sounds great. But how about the fit and durability?
Fit and comfort are outstanding with the X4. The shells are small and lightweight, making them easy to wear for hours. The shell material is a soft-touch matte finish, which also helps enhance on-ear comfort.
And then there’s comfort-enhancing FiR Audio tech like ATOM Venting for reducing in-ear pressure. If you get the custom version, you get the unique In-Air Canals technology, which ensures perfect fit even as you open and close your jaw.
Durability is top-notch with the X4. The entire IEM is designed to be robust and easy to service if the need arises. The shells are easy to pop open held down by three screws), and the drivers and connectors are modular, making them easy to swap out.
The FiR/Bellos Audio X4 IEM combines wonderful sound, unbeatable comfort, and thoughtful design to deliver the best-onstage monitoring experience at a price that’s hard to beat.