Custom In-Ear Monitors
Custom In-Ear Monitors (CIEMs) are high-precision earphones originally designed as a monitoring solution for live musical performances, replacing large format speakers known as floor monitors. CIEMs are now also used for studio performances, mixing/mastering, personal listening and even gaming. 64 Audio makes nine CIEM models ranging from 2-18 drivers per side which cost between $499-$2,999.
Our goal with the whole product range is to offer the best possible sounding monitor at each price point. Regardless of driver-count we aim to get the most out of each component to produce our balanced, accurate and musical CIEMs. All of our models reflect that signature sound, and with the increase of drivers and cost you get increased fidelity and resolution.
Custom Shape
Built to your exact ear shape for the most comfortable and consistent fit possible.
Custom Sound
Nine model variations cover the widest range of sonic requirements.
Custom Style
70+ cosmetic options provide hundreds of thousands of unique combinations.
Vocals.
Drums.
Guitar.
Mixing.
Our CIEMs are designed primarily as monitoring tools, allowing every type of user to hear an accurate recreation of their performance. The aim is an accurate, balanced and musical sound.
By achieving this sound, rather than designing highly specialized sounding products, we’re able to offer the best solution at every price point and driver count; giving every type of user the exact model they need.
Beyond performance monitoring this sonic approach is also an effective solution for Audiophiles, Gamers, and any application where earphones/headphones are needed.
Interchangeable Modules
These interchangeable modules pack our patented apex™ technology. Used with most of our custom and universal in-ears, they allow you to adjust pressure relief, noise isolation, bass attenuation, and mix width.
Detachable Cable
The cables aren’t permanently tethered to the CIEM ensuring that their inherent shorter lifespan won’t decrease the life of your device. We offer 2-Pin and IPX connectors built onto high-quality silver-plated copper wire.
Personalized Case
All CIEM orders include our round aluminum case which can be custom engraved at no extra charge. The case is designed to fit a wide range of CIEM sizes while also housing critical accessories.
Patented Technology
Tia, or Tubeless In-Ear Audio, allows sound to travel to the ear in a more natural way, resulting in a more expansive soundstage and smooth frequency response.
The complete tia system is comprised of three elements: open balanced armature drivers, a single-bore design, and acoustic chambers. All but two of our current Custom In-Ear Monitors feature a tia single-bore and tia high driver. Our tia Trió™ and Fourté™ models feature the complete three-part system.
Apex, or Air Pressure Exchange, is a pneumatically interactive vent that releases air pressure in a sealed ear canal. This venting alleviates listener fatigue and opens the soundstage.
Apex comes in three variations, mX, m15 and m20. All of our current IEMs feature apex technology, although our tia Trió™ and Fourté™ models contain an internal apex module to preserve the tia™ acoustic chambers.
3D-Fit technology combines digital scanning, rendering and 3D-printing to retain ear impression detail. Integrating acoustical tuning features, impossible with traditional methods, enable fitting up to 18 drivers without dramatically increasing IEM height.
Compared to wax-dip molding, this process reduces distortion and maximizes internal space for precise and comfortable in-ear devices. All our Custom In-Ear Monitors and Earplugs are crafted using this advanced technique.
LID is a proprietary circuit that corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving the desired sound signature.
Smartphones, body packs, amps, and DAPs produce audio with different output impedances. The interaction of the earphone impedance curve with the sources may result in the same IEM sounding different with different sources. LID mitigates these inconsistencies, so you can enjoy the same sound across sources.
Drivers
apex®
tia®
LID®
3D-Fit®
Sensitivity
per mW
Frequency Range
Impedance
@ 1kHz
MSRP
A2e
2
m20
114 dB
20Hz - 18kHz
30 Ω
A3e
3
m20
109 dB
20Hz - 20kHz
11 Ω
A3t
3
m20
109 dB
20Hz - 20kHz
11 Ω
A4s
4
m20
107 dB
10Hz - 20kHz
11 Ω
A6t
6
m20
108 dB
10Hz - 20kHz
10 Ω
N8
9
m15 / m20
105 dB
10Hz - 20kHz
6 Ω
A12t
12
m20 / m15
108 dB
10Hz - 20kHz
12.6 Ω
A18s
18
m20 / m15
106 dB
10Hz - 20kHz
8 Ω
A18t
18
m20 / m15
111 dB
10Hz - 20kHz
9 Ω
Build Time
Our CIEMs currently take 4 weeks. Build time begins once we receive your approved ear impressions and they are paired with your order in our system.
Where are your custom in-ear monitors made?
All of our custom and universal IEMs are Designed, Assembled, and QC’d by highly skilled technicians in the United States using components sourced both domestically and globally from trusted suppliers.
30 Day Fit Guarantee
Because of the many variables involved in creating a custom product,
sometimes a fit adjustment is needed. 64 Audio offers a 30 Day Fit Guarantee (on approved impressions)
to ensure that your IEMs fit comfortably and retain a proper seal.
64 Audio requires that you notify customer service within 30
days of receiving your IEMs to be covered by the 30 Day Fit Guarantee.
For detailed information about our 30 Day Fit Guarantee please visit the Warranty page.
Limited 2-Year Warranty
64 Audio offers a two-year limited warranty on all current Custom IEM models. 64 Audio warrants all Custom IEM models to be free from defects in materials and workmanship in either the external shell or internal components for a period of two years from the date of fulfillment. 64 Audio will replace or repair custom models within warranty (subject to approval). For detailed information about our Limited 2-Year Warranty please visit the Warranty page.
How to Order
1. Design & Order (once your order is placed you will get an order confirmation email explaining the below steps in more detail)
3. Get Your Ear Impressions
4. Email Us Photos
5. Ship Your Ear Impressions
"Think of them like earbuds but way WAY nicer. To me, I can hear the difference between these and a cheaper set. It’s all what you value."
Onepeg - Custom A12t
"The A12t IEMs are incredibly well balanced, with excellent bass representation, and an ideal solution for those who are concerned about portability."
Ryan McCambridge - Custom A12t
"A18s is my new go to IEM. It sounds big and powerful like a full blown line array with subs, yet has the clarity and resolution of a studio monitor. "
James Berry (Monitor Engineer: Beyonce, Kings of Leon, Lionel Richie, Fantasia & Maxwell) - A18s
"I’m loving having my A18t IEMs for studio work. Absolutely a life-saver having the IEMs and knowing how things should sound on them while needing to adapt to workflow! I’m sure you’re hearing the same from other studio people.."
Brandon Bost (Mixer, Producer) - Custom A18t
"To me it’s a very easy listening in-ear. Everything I’ve put this through, there’s not like a harsh high end, the mids aren’t scooped low…I’ve listened to drum mixes that I did through these, you can hear if I’m using a maple stick or a hickory stick, which is kind of insane. The articulation on the cymbals is gorgeous. There’s a really nice shimmer to it but it’s not zingy if that makes sense."
Carter McLean (Drummer for THE LION KING on Broadway) - Custom A6t
"I love how the A4s low end response is focused right where my bass sits. In a crowded mix with a loud audience and tons of stage noise, the booty never shrinks on me"
Skyler Acord (Bass: TwentyOne Pilots) - Custom A4s
"The new A4s are a joy to listen to. They’re clear, balanced, and have rich gorgeous low-end. A perfect choice for drummers and bass players. Like all of 64 Audio’s IEMs, the fit is super comfortable and the apex vent makes it so you can wear them for hours without any ear fatigue, which really comes in handy for those long rehearsal days. There is no better option at this price point!"
Andrew Marshall (Drums: Billie Eilish) - Custom A4s
Custom In-Ear Monitors
Custom In-Ear Monitors (CIEMs) are high-precision earphones used for musical performance monitoring; replacing speakers known as floor monitors. CIEMs are now also used in studios, for personal listening and by gamers. 64 Audio makes nine CIEM models ranging from 2-18 drivers per side which cost between $499-$2,999.
Our goal is to offer the best possible sounding monitor at each price point. Regardless of driver-count, we aim to get the most out of each component to achieve our balanced, accurate and musical CIEMs. All of our models reflect that signature sound, and with the increase of drivers and cost you get increased fidelity and resolution.
Custom Shape
Built to your exact ear shape for the most comfortable and consistent fit possible.
Custom Sound
Nine model variations cover the widest range of sonic requirements.
Custom Style
With 70+ cosmetic options, per side, there are hundreds of thousands of possible combinations giving you the ability to make a truly unique looking CIEM.
Vocals.
Drums.
Guitar.
Etc.
By optimizing each model for fidelity and musical accuracy we offer the broadest range of options for every type of user to hear a true recreation of their performance. Beyond performance monitoring this sonic approach is also effective for Audio Engineers, Audiophiles, Gamers, and more.
Interchangeable Modules
These interchangeable modules pack our patented apex™ technology. Used with most of our custom and universal in-ears, they allow you to adjust pressure relief, noise isolation, bass attenuation, and mix width.
Detachable Cable
The cables aren’t permanently tethered to the CIEM ensuring that their inherent shorter lifespan won’t decrease the life of your device. We offer 2-Pin and IPX connectors built onto high-quality silver-plated copper wire.
Personalized Case
All CIEM orders include our round aluminum case which can be custom engraved at no extra charge. The case is designed to fit a wide range of CIEM sizes while also housing critical accessories.
Patented Technology
Tia, or Tubeless In-Ear Audio, allows sound to travel to the ear in a more natural way, resulting in a more expansive soundstage and smooth frequency response.
Apex, or Air Pressure Exchange, is a pneumatically interactive vent that releases air pressure in a sealed ear canal. This venting alleviates listener fatigue and opens the soundstage.
3D-Fit technology preserves the detail of your ear impressions using a new process of digital rendering and 3D-printing.
LID is a proprietary circuit that corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving the desired sound signature.
A2e
2 Drivers
$499
3D-Fit • tia • LID • apex
All the accuracy, balance, and comfort you expect from a professional IEM at an affordable price.
A3e
3 Drivers
$699
3D-Fit • tia • LID • apex
A full-range sound achieved with minimal components. Capable bass, present mids, and composed highs. Blurring the line between an entry-level and end-all CIEM.
A3t
3 Drivers
$899
3D-Fit • tia • LID • apex
The most affordable reference-grade tool for any audio engineer or musician looking for a neutral, balanced and musical monitor for live and recorded performances.
A4s
4 Drivers
$1099
3D-Fit • tia • LID • apex
A hybrid IEM elevated by its Dynamic low frequency driver. Deep enveloping bass coupled with extended airy highs.
A6t
6 Drivers
$1299
3D-Fit • tia • LID • apex
A favorite among multi-instrumentalists and audio engineers for its extended highs, smooth mids, defined lower-mids and powerful lows. Our most popular CIEM.
N8
9 Drivers
$1699
3D-Fit • tia • LID • apex
Created in collaboration with legendary bassist, Nathan East. A warm sounding hybrid IEM with immense bass headroom, saturated lower-mids, smooth mids and detailed highs.
A12t
12 Drivers
$1999
3D-Fit • tia • LID • apex
A studio reference monitor designed to withstand the rigors of live performance monitoring. Balanced, natural, and musical while being articulate in the upper-mids and punchy in the lows.
A18t
18 Drivers
$2999
3D-Fit • tia • apex
The most accurate and highest resolution CIEM in the world. Detailed and quick like a mastering grade reference monitor. Delicate enough for critical audiophile listeners with the clarity to meet the demands of the most discerning performers.
A18s
18 Drivers
$2999
3D-Fit • tia • LID • apex
The most capable and versatile in-ear monitor ever created. A warmer reference monitor tonality you can trust to mix a record on with more headroom and power than you would ever need for the loudest of live performance environments.
Build Time
Our CIEMs currently take 4 weeks. Build time begins once we receive your approved ear impressions and they are paired with your order in our system.
Where are your custom in-ear monitors made?
All of our custom and universal IEMs are Designed, Assembled, and QC’d by highly skilled technicians in the United States using components sourced both domestically and globally from trusted suppliers.
30 Day Fit Guarantee
Because of the many variables involved in creating a custom product,
sometimes a fit adjustment is needed. 64 Audio offers a 30 Day Fit Guarantee (on approved impressions)
to ensure that your IEMs fit comfortably and retain a proper seal.
64 Audio requires that you notify customer service within 30
days of receiving your IEMs to be covered by the 30 Day Fit Guarantee.
For detailed information about our 30 Day Fit Guarantee please visit the Warranty page.
Limited 2-Year Warranty
64 Audio offers a two-year limited warranty on all current Custom IEM models. 64 Audio warrants all Custom IEM models to be free from defects in materials and workmanship in either the external shell or internal components for a period of two years from the date of fulfillment. 64 Audio will replace or repair custom models within warranty (subject to approval). For detailed information about our Limited 2-Year Warranty please visit the Warranty page.
How to Order
1. Design & Order (once your order is placed you will get an order confirmation email explaining the below steps in more detail)
2. Download our Ear Impressions Guide
3. Get Your Ear Impressions
4. Email Us Photos
5. Ship Your Ear Impressions
"Think of them like earbuds but way WAY nicer. To me, I can hear the difference between these and a cheaper set. It’s all what you value."
Onepeg - Custom A12t
"The A12t IEMs are incredibly well balanced, with excellent bass representation, and an ideal solution for those who are concerned about portability."
Ryan McCambridge - Custom A12t
"A18s is my new go to IEM. It sounds big and powerful like a full blown line array with subs, yet has the clarity and resolution of a studio monitor. "
James Berry (Monitor Engineer: Beyonce, Kings of Leon, Lionel Richie, Fantasia & Maxwell) - A18s
"I’m loving having my A18t IEMs for studio work. Absolutely a life-saver having the IEMs and knowing how things should sound on them while needing to adapt to workflow! I’m sure you’re hearing the same from other studio people.."
Brandon Bost (Mixer, Producer) - Custom A18t
"To me it’s a very easy listening in-ear. Everything I’ve put this through, there’s not like a harsh high end, the mids aren’t scooped low…I’ve listened to drum mixes that I did through these, you can hear if I’m using a maple stick or a hickory stick, which is kind of insane. The articulation on the cymbals is gorgeous. There’s a really nice shimmer to it but it’s not zingy if that makes sense."
Carter McLean (Drummer for THE LION KING on Broadway) - Custom A6t
"I love how the A4s low end response is focused right where my bass sits. In a crowded mix with a loud audience and tons of stage noise, the booty never shrinks on me"
Skyler Acord (Bass: TwentyOne Pilots) - Custom A4s
"The new A4s are a joy to listen to. They’re clear, balanced, and have rich gorgeous low-end. A perfect choice for drummers and bass players. Like all of 64 Audio’s IEMs, the fit is super comfortable and the apex vent makes it so you can wear them for hours without any ear fatigue, which really comes in handy for those long rehearsal days. There is no better option at this price point!"
Andrew Marshall (Drums: Billie Eilish) - Custom A4s
- Choosing a selection results in a full page refresh.
- Press the space key then arrow keys to make a selection.