64 Audio - U4s
In-Ears With 1 DD + 3 BA DriversGET 18% GST INPUT
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Low Cost EMI Options through Credit Cards
ICICI Bank
3
Low Cost EMI
₹ 39,356
₹ 3,078
₹ 2,481
6
Low Cost EMI
₹ 20,069
₹ 5,422
₹ 4,387
9
15.99%
₹ 13,643
₹ 7,796
12
15.99%
₹ 10,433
₹ 10,201
18
15.99%
₹ 7,227
₹ 15,102
24
15.99%
₹ 5,630
₹ 20,123
HDFC Bank
3
Low Cost EMI
₹ 39,357
₹ 3,080
₹ 2,481
6
Low Cost EMI
₹ 20,069
₹ 5,425
₹ 4,387
9
16%
₹ 13,643
₹ 7,801
12
16%
₹ 10,433
₹ 10,208
18
16%
₹ 7,228
₹ 15,111
24
16%
₹ 5,630
₹ 20,136
SBI Bank
3
Low Cost EMI
₹ 39,389
₹ 3,177
₹ 2,554
6
Low Cost EMI
₹ 20,012
₹ 5,083
₹ 4,093
9
15%
₹ 13,588
₹ 7,306
12
15%
₹ 10,379
₹ 9,556
18
16%
₹ 7,228
₹ 15,111
24
16%
₹ 5,630
₹ 20,136
Axis Bank
3
Low Cost EMI
₹ 39,357
₹ 3,080
₹ 2,481
6
Low Cost EMI
₹ 20,069
₹ 5,425
₹ 4,387
9
16%
₹ 13,643
₹ 7,801
12
16%
₹ 10,325
₹ 8,905
18
16%
₹ 7,228
₹ 15,111
24
16%
₹ 5,630
₹ 20,136
Other EMI Options through Credit Cards
Citi Bank
3
14%
₹ 39,228
₹ 2,693
6
14%
₹ 19,955
₹ 4,741
9
16%
₹ 13,643
₹ 7,801
12
16%
₹ 10,433
₹ 10,208
18
16%
₹ 7,228
₹ 15,111
24
16%
₹ 5,630
₹ 20,136
Kotak Mahindra Bank
Tenure
Interest%
Installment
Interest
3
16%
₹ 39,357
₹ 3,080
6
16%
₹ 20,069
₹ 5,425
9
16%
₹ 13,643
₹ 7,801
12
16%
₹ 10,433
₹ 10,208
18
16%
₹ 7,228
₹ 15,111
24
16%
₹ 5,630
₹ 20,136
RBL Bank
3
13%
₹ 39,163
₹ 2,500
6
14%
₹ 19,955
₹ 4,741
9
15%
₹ 13,588
₹ 7,306
12
15%
₹ 10,379
₹ 9,556
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
Standard Chartered Bank
3
13%
₹ 39,163
₹ 2,500
6
13%
₹ 19,898
₹ 4,399
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
INDUSIND Bank
3
14%
₹ 39,228
₹ 2,693
6
14%
₹ 19,955
₹ 4,741
9
15%
₹ 13,588
₹ 7,306
12
15%
₹ 10,379
₹ 9,556
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
HSBC Bank
3
12.50%
₹ 39,131
₹ 2,404
6
12.50%
₹ 19,870
₹ 4,229
9
13.50%
₹ 13,506
₹ 6,565
12
13.50%
₹ 10,298
₹ 8,581
18
13.50%
₹ 7,093
₹ 12,679
YES Bank
3
13%
₹ 39,163
₹ 2,500
6
13%
₹ 19,898
₹ 4,399
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
Bank of Baroda
3
13%
₹ 39,163
₹ 2,500
6
14%
₹ 19,955
₹ 4,741
9
14%
₹ 13,534
₹ 6,811
12
15%
₹ 10,379
₹ 9,556
18
15%
₹ 7,174
₹ 14,135
24
16%
₹ 5,630
₹ 20,136
American Express
3
14%
₹ 39,228
₹ 2,693
6
14%
₹ 19,955
₹ 4,741
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
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Why 64 Audio is Special
Designed in USA
Established & Reputed
Trust us, our reputation in the audio world speaks for itself!
This headphone or gear comes from a well-respected brand known for its high-quality audio equipment, so you can be confident in your purchase.
If you see a product marked as “🎖️ Established & Reputed”, it means you're getting a top-tier device from a brand that's earned its stripes in the audio industry.
Revered by Audiophiles
Audiophiles can be really picky and tough to impress and if the audiophile community says something sounds good, you can bet it's great!
This headphone or gear has gained recognition and admiration from audiophiles, who are known for their discerning taste in high-fidelity audio. They appreciate its precision, attention to detail and its ability to deliver an immersive sonic experience.
If you see a product marked as "🙌🏻 Revered by Audiophiles", it means that it meets the highest standards of sound quality and performance, making it a top choice for anyone who values exceptional audio experiences.
Specialist
A masterpiece from the experts who know audio inside and out!
This headphone or gear is crafted by specialists who know their stuff, ensuring every detail is perfect.
If you see a product marked as “🌟 Specialist”, it means you're choosing a device designed by experts who specialize in creating this specific category of device.
Born in 2010
Why we love this IEM
I Am Worth It
Only for the most passionate and discerning audiophiles who want the very best.
Audiophiles desire class-defining products that not only meet their needs but truly blows their expectation in quality and performance.
If you see a product marked with “👑 I Am Worth It," rest assured that it's a timeless investment. Its value cannot be measured with ordinary benchmarks and is an indulgence only for a select few.
Serious Audiophiles Only
Diving deeper into exploring the hobby is never enough.
If you're an audiophile on a hunt for a device that meets your high standards, this is one such headphone or gear designed for discerning audiophiles like you in mind.
If you see a product marked with “🦈 Serious Audiophiles Only" we assure you that this device can match your depth of knowledge and expertise to take your passion for audio to the next level.
Ideal for Stage & Live Shows
You deserve a perfectly crafted product for your special performances.
This headphone or gear indicates that this product is specially designed to accompany you during stage events and live shows.
If you see a product marked with “🎸 Stage & Live Shows", it means this product is ideal for artists, offering the performance and reliability needed for your best shows.
Tweak & Tune the Sound
Why settle for a fixed sound signature
This headphone or gear indicates that the product offers customisable tuning settings, perfect for those who love to fine-tune every region of the frequency spectrum.
If you see products marked as “🔧 Tweak & Tune the Sound”, you’ll enjoy the freedom to adjust your audio experience to perfection, ensuring your sound is always just the way you like it, whether you’re a bass lover or a treble tweaker!
Built like a Tank
No need to worry about durability.
If you're seeking a headphone or gear with a strong, rugged build, this snapshot indicates that this is the one for you.
If you see a product marked with “🪖 Built like a Tank", it means this product is crafted with metal in its design, ensuring exceptional robustness and durability.
Fits like a Dream
Struggling to get a good fit? Try these for a glove-like fit. They fit as if it were tailor-made for you.
This headphone offers an exceptional fit and is designed to provide maximum comfort.
If you see a product marked as “ 👠 Fits like a dream”, you can trust that it will provide a snug and comfortable fit, enhancing your overall listening experience.
Upgradeable Cable
Not happy with your current cable? Swap it out!
If you're searching for an in-ear monitor with a detachable design, these IEMs fit the bill.
If you see an IEM marked with "🔌 Upgradeable Cable," it means it comes with a detachable cable. You can easily swap or upgrade the cable, allowing for customization or maintenance whenever you desire.
Why it Sounds Amazing
Hybrid Drivers
Looking for a combo of rich and detailed sound? Here’s the perfect blend!"
This headphone or gear features hybrid drivers, combining different types of drivers to deliver both rich, full-bodied sound and intricate, detailed audio. It's like having the best of both worlds in one device.
If you see a product marked with "🔈 Hybrid Drivers”, it means you're getting a device that expertly balances multiple driver technologies to provide an exceptional listening experience, blending the depth of dynamic drivers with the precision of balanced armature drivers. Perfect for those who want it all in their music.
Balanced Sound Signature
Perfectly Balanced, Accurately Presented.
This headphone or gear delivers a perfectly balanced audio profile, with highs, mids, and lows in sweet equilibrium.
If you see products marked as “⚖️ Balanced Sound Signature”, you’re set to enjoy a well-rounded listening experience where no single element overpowers the others, making your music sound just as the artist intended.
Ultra-Wide Sound Stage
Do you wish to bring the concert hall to your ears?
This headphone or gear offers an ultra-wide soundstage, giving your music a spacious and immersive feel as if you're right there in the middle of a live performance.
If you see a product marked with "😳 Ultra-Wide Soundstage," it means this product is designed to deliver expansive audio, making your listening experience feel grand and enveloping, perfect for those who love a broad and detailed sound.
Thick Bass / Kickass Bass
There are some headphones that just knock your socks off with high and impactful bass. There’s only one way to describe it - Kickass.
This headphone or gear is engineered to deliver powerful and thumping bass that adds an extra punch to your music, making every beat come alive.
If you see a product marked with "💣 Kickass Bass", it means this device is perfect for bass enthusiasts for an immersive audio experience that will make your music feel more intense and impactful.
Sharp & Precise Details
Are you a lover of sharp and precise details in your music?
This headphone or gear delivers meticulous and accurate details in your audio, ideal for those who prioritise precise sound reproduction.
If you see a product marked with "📌 Sharp & Precise Details", it means this device excels in capturing fine nuances and intricacies in your music, ensuring a high level of clarity and fidelity.
Perfect to Analyse Music
Delve deeper into the Bassline, Riffs and Harmonies.
This headphone or gear is designed for those who dive deep into the nuances of sound, offering precision for music analysis.
If you see products marked as “🔍 Perfect to Analyse Music”, get ready to dissect every beat, note, and harmony with exceptional clarity, making it an ideal tool for musicians, producers, and audiophiles who crave detailed insights into their music.
Layered and Nuanced Sound
Imagine sitting on the second row of a music hall. Instruments should sound like they are coming from different places on the stage - Layered and nuanced.
This headphone or gear is designed to deliver a rich, detailed audio experience, with every note and subtlety coming through crystal clear.
If you see a product marked with "🍰 Layered and Nuanced Sound," it means this device is crafted to provide an intricate soundscape, perfect for audiophiles who appreciate the depth and complexity in their music.
Best Paired With DAC & Amp
DESCRIPTION
MAKE WAY FOR THE QUAD DRIVER HYBRID IN-EAR MONITOR - THE 64 AUDIO U4S
64 Audio has been the pioneer and has developed some of the most spectacular in-ear monitors. With years of research & development, 64 Audio is proud to introduce its latest offering - the quad driver hybrid in-ear monitor U4s. It features ground-breaking patented technologies developed for its flagship products to bring a wider audience closer to its music. The 64 Audio U4s is a hybrid quad driver universal IEM that is sure to please that discerning audiophile in you.
FEATURES QUAD DRIVER SETUP TO MAKE YOUR MUSIC BREATHE AND COME ALIVE
The 64 Audio U4s has a unique driver configuration consisting of a single dynamic driver, two balanced-armature drivers, and one patented tia driver; all weaved together with their patented Tia, LID, and Apex technology. By effortlessly providing a physically compelling sub-bass without bleed-in to the mid-bass, U4s sounds light on its feet. At all volume levels, a wide range of musical genres and recording methods respond well to balanced mid frequencies and a pleasing high-mid band that is present but not oppressive. U4s makes your music breathe and come alive!
PATENTED TIA TECHNOLOGY FOR AN EVEN MORE REFINED PERFORMANCE
Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. Open-balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers make up the three main components of the tia system. The U4s feature two elements of the tia system: the tia driver and the tia single-bore design. Get the most refined performance ever imaginable with the U4s!
UNIQUE CROSSOVER CIRCUIT AND LINEAR IMPEDANCE DESIGN FOR CONSISTENT AND RELIABLE SOUND
A crossover circuit replaces traditional acoustic dampers, which can introduce unwanted distortion through vibration and air turbulence. Rather than using acoustic dampers to filter unwanted frequencies after the driver produces them, the electrical low-pass filter lowers distortion by eliminating unwanted frequencies before they reach the driver. Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver sets comprising this 4-driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency responses across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound. The four-way crossover is elevated with the use of our proprietary electronic low-pass filter, reducing low-frequency distortion.
ELEGANT BLUE SHELLS WITH A UNIQUE FACEPLATE DESIGN
The 64 Audio U4s explores a bold new colour aesthetic. The Slate Blue shell colour is influenced by some of the world’s most beautiful blue-dial timepieces. Muonionalusta meteorite bits served as inspiration for the distinctive faceplate pattern. Both the faceplate and shell’s illuminant properties give it a unique tone in varying lighting conditions. The anodized aluminium shell adds to the ergonomics making the U4s highly comfortable to wear for long listening sessions.
BUNDLED WITH SILVER-PLATED COPPER CABLE AND APEX MX MODULES
The assortment of included apex modules and ear tips is an invitation to further shape the sound based on preference and source material. The ultra-low impedance premium silver-plated copper cable ensures unimpeded signal transmission. The dissemination of tia technology within 64 Audio's product range brings that classic 64 Audio sound signature to a new price point. Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal, all while retaining standard IEM levels of isolation. This design enables musicians and music enthusiasts to listen more comfortably for longer. The venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in four module variations for U4s: mX, m15, m20.
SPECS
| DRIVER TYPE | Single dynamic driver, Three balanced-armature drivers |
| DRIVER CONFIGURATION | 1 tia High Driver 1 High-Mid Driver 1 Mid Driver 1 Dynamic Low Driver |
| FREQUENCY RESPONSE | 10Hz – 20kHz |
| SENSITIVITY | 105 dB/mW Sensitivity @1kHz |
| IMPEDANCE | 6Ω Impedance @1kHz |
| CROSSOVER | Integrated 4-way Passive Crossover |
| APEX TECHNOLOGY ISOLATION: | -20dB, -15dB, -10dB, -12dB |
| WIRED CONNECTIVITY | 3.5mm |
| MIC & REMOTE | NA |
| COMPATIBILITY | Universal |
| WEARING STYLE | In-Ear |
| BLACK PREMIUM CABLE | 0.23 Ohms Total Impedance
7 x 7 x 4 Multi-Twist Silver Plated OCC Copper Wire 26 AWG Terminated in 3.5mm |
| BOX CONTENTS | 1. U4s Universal In-Ear Monitors |
| 2. 64 Audio Premium Leather Case | |
| 3. TrueFidelity Foam Ear Tips (S,M,L) | |
| 4. SpinFit Silicone Ear Tips (S,M,L) | |
| 5. Silicone Ear Tips (S,M,L) | |
| 6. 3.5mm Black Premium Cable | |
| 7. Apex Modules: m20, m15, mX | |
| 8. Cable Clip | |
| 9. Cleaning Tool | |
| 10. Round Sticker |
OTHER DETAILS
| GENERIC NAME | Headphone |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| MANUFACTURER DETAILS | Name: 1964 Audio,64 Audio Address: 4510 NE 68th Dr. Suite 102, Vancouver, WA 98661, United States |
| PACKAGE CONTENTS | U4s Universal In-Ear MonitorS, 64 Audio Premium Leather Case TrueFidelity Foam Ear Tips (S,M,L) SpinFit Silicone Ear Tips (S,M,L) Silicone Ear Tips (S,M,L) 3.5mm Black Premium Cable Apex Modules M20 M15 MX Cable Clip Cleaning TooL, Round Sticker |
MAKE WAY FOR THE QUAD DRIVER HYBRID IN-EAR MONITOR - THE 64 AUDIO U4S
64 Audio has been the pioneer and has developed some of the most spectacular in-ear monitors. With years of research & development, 64 Audio is proud to introduce its latest offering - the quad driver hybrid in-ear monitor U4s. It features ground-breaking patented technologies developed for its flagship products to bring a wider audience closer to its music. The 64 Audio U4s is a hybrid quad driver universal IEM that is sure to please that discerning audiophile in you.
FEATURES QUAD DRIVER SETUP TO MAKE YOUR MUSIC BREATHE AND COME ALIVE
The 64 Audio U4s has a unique driver configuration consisting of a single dynamic driver, two balanced-armature drivers, and one patented tia driver; all weaved together with their patented Tia, LID, and Apex technology. By effortlessly providing a physically compelling sub-bass without bleed-in to the mid-bass, U4s sounds light on its feet. At all volume levels, a wide range of musical genres and recording methods respond well to balanced mid frequencies and a pleasing high-mid band that is present but not oppressive. U4s makes your music breathe and come alive!
PATENTED TIA TECHNOLOGY FOR AN EVEN MORE REFINED PERFORMANCE
Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. Open-balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers make up the three main components of the tia system. The U4s feature two elements of the tia system: the tia driver and the tia single-bore design. Get the most refined performance ever imaginable with the U4s!
UNIQUE CROSSOVER CIRCUIT AND LINEAR IMPEDANCE DESIGN FOR CONSISTENT AND RELIABLE SOUND
A crossover circuit replaces traditional acoustic dampers, which can introduce unwanted distortion through vibration and air turbulence. Rather than using acoustic dampers to filter unwanted frequencies after the driver produces them, the electrical low-pass filter lowers distortion by eliminating unwanted frequencies before they reach the driver. Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver sets comprising this 4-driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency responses across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound. The four-way crossover is elevated with the use of our proprietary electronic low-pass filter, reducing low-frequency distortion.
ELEGANT BLUE SHELLS WITH A UNIQUE FACEPLATE DESIGN
The 64 Audio U4s explores a bold new colour aesthetic. The Slate Blue shell colour is influenced by some of the world’s most beautiful blue-dial timepieces. Muonionalusta meteorite bits served as inspiration for the distinctive faceplate pattern. Both the faceplate and shell’s illuminant properties give it a unique tone in varying lighting conditions. The anodized aluminium shell adds to the ergonomics making the U4s highly comfortable to wear for long listening sessions.
BUNDLED WITH SILVER-PLATED COPPER CABLE AND APEX MX MODULES
The assortment of included apex modules and ear tips is an invitation to further shape the sound based on preference and source material. The ultra-low impedance premium silver-plated copper cable ensures unimpeded signal transmission. The dissemination of tia technology within 64 Audio's product range brings that classic 64 Audio sound signature to a new price point. Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal, all while retaining standard IEM levels of isolation. This design enables musicians and music enthusiasts to listen more comfortably for longer. The venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in four module variations for U4s: mX, m15, m20.
| DRIVER TYPE | Single dynamic driver, Three balanced-armature drivers |
| DRIVER CONFIGURATION | 1 tia High Driver 1 High-Mid Driver 1 Mid Driver 1 Dynamic Low Driver |
| FREQUENCY RESPONSE | 10Hz – 20kHz |
| SENSITIVITY | 105 dB/mW Sensitivity @1kHz |
| IMPEDANCE | 6Ω Impedance @1kHz |
| CROSSOVER | Integrated 4-way Passive Crossover |
| APEX TECHNOLOGY ISOLATION: | -20dB, -15dB, -10dB, -12dB |
| WIRED CONNECTIVITY | 3.5mm |
| MIC & REMOTE | NA |
| COMPATIBILITY | Universal |
| WEARING STYLE | In-Ear |
| BLACK PREMIUM CABLE | 0.23 Ohms Total Impedance
7 x 7 x 4 Multi-Twist Silver Plated OCC Copper Wire 26 AWG Terminated in 3.5mm |
| BOX CONTENTS | 1. U4s Universal In-Ear Monitors |
| 2. 64 Audio Premium Leather Case | |
| 3. TrueFidelity Foam Ear Tips (S,M,L) | |
| 4. SpinFit Silicone Ear Tips (S,M,L) | |
| 5. Silicone Ear Tips (S,M,L) | |
| 6. 3.5mm Black Premium Cable | |
| 7. Apex Modules: m20, m15, mX | |
| 8. Cable Clip | |
| 9. Cleaning Tool | |
| 10. Round Sticker |
OTHER DETAILS
| GENERIC NAME | Headphone |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
| MANUFACTURER DETAILS | Name: 1964 Audio,64 Audio Address: 4510 NE 68th Dr. Suite 102, Vancouver, WA 98661, United States |
| PACKAGE CONTENTS | U4s Universal In-Ear MonitorS, 64 Audio Premium Leather Case TrueFidelity Foam Ear Tips (S,M,L) SpinFit Silicone Ear Tips (S,M,L) Silicone Ear Tips (S,M,L) 3.5mm Black Premium Cable Apex Modules M20 M15 MX Cable Clip Cleaning TooL, Round Sticker |
Don't sweat it, this
64 Audio - U4s comes with a 1 Year warranty
from 64 Audio that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about 64 Audio's warranty in India.
"Overall, it’s very nicely balanced with a tastefully tuned bump in its pinna gain amplitude to counter those firm lows. Excellent bass response, Clean design lines, Comfortable fitting."
Read More
"The treble of the U4s is very detailed, sharp and direct.Some higher notes, especially hard and fast hitting cymbals, can come across as thin."
Read More
"Dynamics on the U4s are praiseworthy. This increases the loudness of the bass and treble, creating a greater sense of contrast."
Read More
"The U4s, with its dynamic bass driver,I think 64Audio have been busy with their cross-over designs. When I had the U4t demo, I remember thinking, “that’s the low driver, oh there’s the tweeter."
Read More
"With IEM manufacturers seemingly in an arms race to create the most expensive IEMs imaginable.This may be my favorite 64 Audio release to date; not that it’s “The Best."
Read More
"An excellent all-rounder that you can purchase now and not worry about outgrowing with time.I truly think the U4s is a new benchmark at the $1000 price range and possibly higher too."
Read MoreHave a question? Get in touch!
Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.
What is the warranty period on the 64 Audio U4s and how do I claim warranty?
What is Tia (Tubeless In-Ear Audio) technology, and how does it enhance the 64 Audio U4s?
What is Apex (Air Pressure Exchange) technology, and how does it benefit the listening experience?
Can the 64 Audio U4s be customized further based on user preferences?
How does the 64 Audio U4s cater to long listening sessions and comfort?
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