64 Audio

64 Audio In-Ear Monitors for True Hi-Fi Listening

• Flagship and reference-grade in-ear monitors from 64 Audio, trusted by artists and audiophiles across the world.
• Proprietary technologies such as tia™, Apex™, and LID™ to control resonance, pressure, and impedance.
• Innovative multi-driver designs for exceptional resolution and precise imaging.
• Tunings ranging from balanced reference to richer, more musical tones.
• Premium materials and precise engineering to exact acoustic tolerances.
• Apex™ technology to reduce ear fatigue by relieving air pressure.
• IEMs designed to scale noticeably with high-end sources, DACs, and amplification.
• Expert system guidance from our white-glove service team.

Flagship 64 Audio IEMs: The Ultimate Performance

For audiophiles who demand the best in-ear experience, our flagship 64 Audio IEMs top the list. We feature the following flagship models:

• Fourté: Hybrid flagship with tia™ and Apex™ integration
• U18t: Reference-tuned 18-driver balanced armature design
• U18s: Refined 18-driver platform with additional warmth and consistency

Fourté In-Ear Monitors

Introduced in 2016, the Fourté was the first universal IEM to incorporate the innovative tia™ and Apex™ technology from 64 Audio. It's a hybrid IEM with one dynamic and three balanced-armature drivers housed in tubeless acoustic chambers.

• Hybrid design with one dynamic and three balanced armature drivers
• tia™ technology with tubeless acoustic chambers to reduce resonance
• tia™ architecture enabling open, direct driver radiation into the ear canal
• Apex™ technology with pressure relief for increased soundstage width

The Fourté presents music with a wide soundstage, rich bass response, natural mids, and smooth treble.

U18t Balanced Armature IEMs

Also introduced in 2016, the U18t was the second model from 64 Audio to break the boundaries of universal IEM technology with its astonishing 18-driver balanced-armature design. It was also the first IEM from the company to incorporate the tia™ high driver and single-bore technology.

• 18 balanced armature drivers with exceptional resolution and speed
• tia™ high driver and single-bore technology with extended open treble
• Reference-style tuning with highly accurate, linear response
• Apex™ modules that relieve ear pressure while maintaining isolation

Fast bass response, exceptional micro-detail, and a balanced tonal profile make the U18t one of 64 Audio’s most precise in-ear monitors.

U18s Balanced Armature IEMs

The U18s model improves upon the original 18-driver with Linear Impedance Design (LID) and an all-new electronic crossover network. The goal is to provide consistent performance across different sources.

• 18 balanced armature drivers for high-resolution sound
• tia™ high driver and single-bore tech for open and airy trebles
• Linear Impedance Design (LID) for consistent performance across devices
• Apex™ modules for comfortable ear pressure and isolation
• An electronic crossover network for distortion-free sound before it hits the drivers

The U18s IEMs have incredible sound, a wide-open soundstage, and smooth treble that does not fatigue ears.

Reference & Studio Monitoring IEMs

For listeners who demand nothing less than accuracy, 64 Audio’s reference IEMs are the perfect choice. Our collection of reference IEMs from 64 Audio includes:

• U12t: 12-driver balanced armature sound with reference tuning for strong imaging and tonal accuracy
• Volür: Hybrid sound with dynamic bass and balanced armature sound clarity

U12t In-Ear Monitors

The U12t is one of 64 Audio’s best IEMs and has earned many audiophiles’ praise for its accuracy and musicality.

• 12 balanced armature drivers in a 4-way crossover configuration
• tia™ high driver and single-bore design for open, extended highs
• Linear Impedance Design (LID) for smooth sound reproduction on any source
• Apex™ pressure-relieving modules for comfort and enhanced soundstage
• Machined aluminum housing with a universally ergonomic shape

Clean mids, decent bass, and open highs make the U12t a popular choice for those in search of reference-quality detail.

Volür In-Ear Monitors

Volür IEMs feature both dynamic and balanced armature drivers. When properly tuned, the low end delivers a rich, natural tone.

• 10-driver configuration with dynamic drivers and balanced armatures
• True Isobaric dual 9mm dynamic drivers for enhanced low-end extension
• nüa fiber low-frequency chamber for improved damping and reduced distortion
• tia™ waveguide and high driver for open, extended highs
• Apex™ modules for relieving ear pressure and reducing fatigue
• Linear Impedance Design (LID) for smooth sound reproduction on any source

Musical Audiophile Listening IEMs

Some listeners prefer a richer, more engaging sound signature over strict neutrality. Our 64 Audio collection features the Nio model for that listening style.

Nio In-Ear Monitors

The Nio is one of the most enjoyable listening-focused 64 Audio products in the lineup. It combines a 9mm dynamic driver with balanced armatures to deliver weight in the low end while maintaining clarity through the mids and highs.

• Extended low-end response with strong bass presence and control
• tia™ high driver for smooth, open treble
• Apex™ modules that reduce ear fatigue and adjust isolation
• LID technology for consistent tuning across different sources

The tuning leans slightly warm and full. That makes it a fantastic choice for genres like rock, jazz, hip-hop, and electronic music.

Entry to High-End 64 Audio IEMs

Many listeners assume high-end IEMs are out of reach. Fortunately, 64 Audio offers models that provide flagship engineering at more accessible price points.

Solo In-Ear Monitors

The Solo introduces a different approach within the 64 Audio lineup as their first high-end planar-magnetic universal IEM. Instead of relying on multiple drivers, it uses a single planar driver to deliver fast transient response and a cohesive, full-range presentation.

U6t In-Ear Monitors

64 Audio often recommends the U6t as a first step into high-end in-ear monitors. With six balanced armature drivers, it provides impressive resolution while remaining forgiving with everyday music sources. For many listeners, this becomes the gateway into the broader world of audiophile IEMs.

Pairing 64 Audio IEMs With the Right Gear

High-performance IEMs respond dramatically to improvements in your signal chain. Pairing 64 Audio products with the right DAC or amplifier unlocks their full potential.

You may want to explore:

• Dedicated DAC and amp setups from our Headphone Amplifiers collection
• Premium headphones from brands like Dan Clark Audio and other high-end manufacturers in our Headphones collection

And of course, Moon Audio’s own award-winning Dragon Audio IEM Cables, specifically designed to pair with 64 Audio IEMs, are perfect for eliminating signal bottlenecks and preserving the fine detail our 64 Audio IEMs can reproduce. When you match your system correctly, the difference is unmistakable.

Frequently Asked Questions

What Makes 64 Audio IEMs Different From Other In-Ear Monitors?

64 Audio developed several proprietary technologies, including tia™, Apex™, and LID. These technologies address common IEM challenges like acoustic resonance, ear pressure, and impedance variation. They help maintain clarity, comfort, and consistent sound across different devices.

Are 64 Audio IEMs Good for Audiophile Listening?

Absolutely. Many audiophiles consider models like the U12t and U18t reference-level IEMs. They offer exceptional detail retrieval, realistic imaging, and balanced tuning suitable for critical listening.

Which 64 Audio IEM is Best for Beginners?

The U6t and Solo are excellent for beginners. They introduce listeners to the brand’s tuning and technology while remaining more accessible than the flagship models.

Are 64 Audio IEMs Used by Professional Musicians?

Yes. The company originally built its reputation on stage monitoring for touring artists. Many musicians still rely on 64 Audio systems for live performances.

What is the Difference Between the U18t and U18s?

Both models use 18 balanced armature drivers. However, the U18t focuses on maximum resolution and neutrality, while the U18s introduces a slightly warmer and fuller tonal balance.

Are 64 Audio IEMs Good for Stage Monitoring?

Very much so. Their Apex™ technology reduces ear fatigue during long performances, and their driver configurations provide accurate monitoring across the frequency spectrum.

Do 64 Audio IEMs Work With Smartphones, DACs, and Portable Music Players?

Yes. They can connect directly to smartphones with the appropriate cable or adapter. However, using a dedicated DAC or portable music player will typically deliver noticeably better performance.

Which 64 Audio IEM Has the Best Soundstage?

The Fourté is widely recognized for having one of the most expansive soundstages in the brand’s lineup.

Do 64 Audio IEMs Come With a Warranty?

Yes. All our 64 Audio in-ear monitors come with a 1-year warranty. 

Experience 64 Audio at Moon Audio

Choosing high-end in-ear monitors is personal. We provide white-glove service and help listeners build systems that bring their music closer to the original performance.

Browse our full selection of 64 Audio products and find the model that fits your listening style.