












64 Audio - U4s
In-Ears With Quad DriversGET 18% GST INPUT
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Browse EMI Plans
₹ 10,395 per month with Snapmint
Tenure available: 3, 6 and 9 months
Eligibility: Above 18 years of age, Credit Card NOT Required
Transaction value: Available on all orders
Payment Gateway: Please choose Snapmint Cardless EMI at checkout
3 Months
(No Cost EMI)
₹ 28,748
₹ 28,748
₹ 0
6 Months
(Low Cost EMI)
₹ 28,748
₹ 15,006
₹ 3,852
9 Months
(Low Cost EMI)
₹ 28,748
₹ 10,395
₹ 7,474
₹ 38,330 per month with Bajaj Finserv
Tenure available: 3 Months
Eligibility: All Bajaj Finance card owners
Transaction value: All orders above Rs. 4,500/-
Payment Gateway: Please choose Razorpay at checkout
3 Months
No Cost EMI
₹ 38,330
₹ 0
₹ 38,330 per month with Zest Money
Tenure available: 3 Months
Eligibility: All Zestmoney users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Cashfree at checkout
3 Months
No Cost EMI
3
No Cost EMI
₹ 38,330
₹ 0
EMI Options through Other Credit Cards
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
14%
₹ 7,120
₹ 13,163
24
14%
₹ 5,521
₹ 17,514
Axis Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
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
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
13%
₹ 13,479
₹ 6,318
12
13%
₹ 10,271
₹ 8,257
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
Citi Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
15%
₹ 13,588
₹ 7,306
12
15%
₹ 10,379
₹ 9,556
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
HDFC Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
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
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
13.50%
₹ 13,506
₹ 6,565
12
13.50%
₹ 10,298
₹ 8,581
18
13.50%
₹ 7,093
₹ 12,679
ICICI Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
13.99%
₹ 13,533
₹ 6,807
12
13.99%
₹ 10,324
₹ 8,899
18
14.99%
₹ 7,173
₹ 14,126
24
14.99%
₹ 5,575
₹ 18,808
INDUSIND Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
13%
₹ 13,479
₹ 6,318
12
12%
₹ 10,217
₹ 7,611
18
12%
₹ 7,012
₹ 11,232
24
12%
₹ 5,413
₹ 14,921
Kotak Mahindra Bank
Tenure
Interest%
Installment
Interest
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
RBL Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
15%
₹ 13,588
₹ 7,306
12
15%
₹ 10,379
₹ 9,556
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
SBI Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
Standard Chartered Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
YES Bank
3
No Cost EMI
₹ 38,330
₹ 0
6
No Cost EMI
₹ 19,165
₹ 0
9
14%
₹ 13,534
₹ 6,811
12
14%
₹ 10,325
₹ 8,905
18
15%
₹ 7,174
₹ 14,135
24
15%
₹ 5,575
₹ 18,822
Payment Offers
Snapmint
Tenure available: 3, 6 and 9 months
Eligibility: Above 18 years of age, Credit Card NOT Required
Transaction value: Available on all orders
Payment Gateway: Please choose Snapmint Cardless EMI at checkout
3 Months
(No Cost EMI)
₹ 28,748
₹ 28,748
₹ 0
6 Months
(Low Cost EMI)
₹ 28,748
₹ 15,006
₹ 3,852
9 Months
(Low Cost EMI)
₹ 28,748
₹ 10,395
₹ 7,474
Axio
Tenure available: 3 or 6 Months
Eligibility: All above 21 years of age
Transaction value: Available on all orders below Rs. 60,000/-
Payment Gateway: Please choose Razorpay at checkout
3 Months
No Cost EMI
₹ 38,330
₹ 0
6 Months
No Cost EMI
₹ 19,165
₹ 0
Zest Money
Tenure available: 3 Months
Eligibility: All Zestmoney users
Transaction value: Depends on your credit limit
Payment Gateway: Please choose Cashfree at checkout
3 Months
No Cost EMI
3
No Cost EMI
₹ 38,330
₹ 0
MobiKwik
Cashback Offer
- Select Cashfree at Checkout to transact through Mobikwik
- Get Additional Cashback upto Rs. 500/- on transaction via MobiKwik wallet
- Use Code :- MBK500 on MobiKwik Payment page to avail the additional cashback.
- Transaction to be done through MobiKwik wallet only
- Offer can be availed on minimum transaction of Rs. 1999/-
- Offer can be availed once per user during the campaign
- Offer valid till 30th September '23
- T&C Applied
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Designed in
USA
Balanced Sound Signature
Wired Earphones with a Balanced sound signature presents a precise sound and an enriching listening experience, where sounds are naturally presented without extreme emphasis on any region. With a pair of headphones with this sound signature, you can hear audio with clarity and detail. The sound is vivid and revealing, a perfect mixture of instruments and vocals, lows, mids, and highs. This sound signature works for most music listeners who like switching between various music genres like Classical, Jazz, Blues, Rock, Folk and Pop.
Year of
Warranty
Ideal for Audiophiles
These earphones/IEMs are designed for discerning music lovers. If you are someone who cares about audio quality deeply, you'll want a pair of earphones/IEMs like these. You can expect them to present a Hi-Fidelity listening experience.
The audio quality exhibited by these earphones/IEMs is a beautiful mix of musicality, technical brilliance and high precision. These earphones/IEMs deliver a spacious and open soundstage with utmost clarity and detail. Delve into pure sonic bliss with these earphones/IEMs!
Best Suited for Portable Use
The ability to carry your favourite earphones/IEMs around is priceless for those who value them. These earphones/IEMs offer the ultimate portability experience without sacrificing sound quality.
If you’re someone who appreciates cutting-edge engineering, quality sound and portability, look no further. These earphones/IEMs are designed to be trusty companions and are cleverly engineered with the latest technology to offer the ultimate combination of Portability & Hi-Fidelity.
Metal
Build
3 BA + 1 Dynamic
Drivers
Replaceable Cables
A pair of headphones with a replaceable cable has many benefits, and one of them is if the connecting cable has a problem, it doesn’t mean that you have to buy a new one. If the connecting cable gets pulled or damaged, you can replace it and keep using your good-old headphones or IEMs. This way, your headphones will be protected and will last longer. With the advancements in cable manufacturing, you now get a variety of replacement cables with various termination options, lengths and quality.
Tangle-Free Cables
Every time you reach for earphone/IEM cables to connect them to your earphones/IEM, no matter how neatly you "wrapped" them up, they end up in a giant Gordian knot of frustration. Tangled cables are the bane of modern existence, and everyone owning a wired pair of earphones/IEM can attest to this.
With advances in cable-making techniques and radical approaches to manufacturing, there are now several solutions to this universal problem. You get Flat cables, Mesh Design cables, cables coated with exterior covers and cables designed with a zipper style design to avoid Tangle and attempt to solve the issue.
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, and m12.

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, *m12, mX | |
8. Cable Clip | |
9. Cleaning Tool | |
10. Round Sticker |
GENERIC NAME | Headphones |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
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, and m12.

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, *m12, mX | |
8. Cable Clip | |
9. Cleaning Tool | |
10. Round Sticker |
GENERIC NAME | Headphones |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
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 MoreThis product has no reviews yet.