The U18t took the audio world by storm with its whole 18-driver package. Now, it’s time for something bigger and better - the 64 Audio U18s! This in-ear monitor features the latest proprietary drivers, tia, Apex Core and LID technology as well as a whole new electronic crossover network for an unparalleled audio experience.

Go Tubeless with tia!
The 64 Audio U18t’s patented Tubeless In-Ear Audio (tia) system reduces unwanted resonance and distortion for a transparent and lifelike sound. This is achieved by allowing the tia balanced armature drivers to radiate freely in the single tia bore with no obstructions in front of the drivers.
Apex Sound & Comfort
The Air Pressure Exchange (Apex) Core allows seamless airflow to the aluminium shell that uses a perforated grill to prevent the obstruction of air for effortless reproduction of music. This patented vent releases air pressure for better comfort and lesser fatigue while enhancing noise isolation. This technology comes in three module variations: mX, m15 and m20.
Reliable with the Right LID
The different source amplifier output impedances of smartphones, DAC/Amps, Hi-Res Audio Players and more, can cause the frequency response to vary across devices based on the increase in resistance. A patented Linear Impedance Design (LID) circuit corrects the non-linear electrical resistance of the multiple driver sets to restore proper interaction with the source device. It preserves the desired sound signature while staying constant and reliable.
No Dampers, It’s Electrifying!
Old technologies like acoustic dampers merely blocked frequencies from reaching the ear instead of preventing it from reaching the drivers. This introduced distortion due to the vibration and air movement at higher volumes. The U18s uses an electrical low pass filter that reduces distortion while eliminating unwanted target frequencies before they reach the driver.
The Best of Nature & Science
Inspired by nature, the U18s is handcrafted in the USA from an aerospace-grade aluminium billet. This is CNC milled, sand-blasted, cut and anodised twice for incredible robustness. A striking fractal design makes it unique and stunning.
Premium Cables
A top-of-the-line IEM deserves a state-of-the-art cable. 65 strands of pure silver-plated OFC wires are combined together in an 8-braid cable. These are covered with a premium sheath to reduce microphonics and unwanted noise.
Introducing U18s
Making the U18sUnboxing U18s
Driver Type/Count: Eighteen precision balanced armature drivers
Driver Configuration: 1 tia high, 1 high-mid, 8 mid, 8 low
Frequency Response: 10Hz - 20kHz
Sensitivity: 106 dB/mW @ 1kHz @ 1mW (84mV)
Impedance: 8Ω Nominal
Crossover: Integrated 4-way passive crossover
Isolation: -20dB w/ m20 module, -15dB w/ m15 module, -10db w/ mX module
In The Box
U18s Universal In-Ear Monitors
Dehumidifier Cleaning Tool
Shirt Clip
TrueFidelity Eartips (S,M,L)
Silicone Eartips (S,M,L)
SpinFit Eartips
Ear Tip Holder 48"
8-Braid Silver Premium Cable
Branded m20 apex Modules
Branded m15 apex Modules
Branded mX apex Modules
Round Sticker
Product Manual
Warranty Period: 2 Years from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
64 Audio is a leading manufacturer of high-end in-ear monitors for audiophiles, musicians, and professionals. With a focus on innovation and craftsmanship, 64 Audio delivers unparalleled sound quality and precision. Discover their range of custom and universal-fit models at The Audio Store and experience audio like never before. Shop now!
I own 2 iems from 64a
Nio
U12t
This is the best end game iem
Very organic sound with good bass
Very good for long listening
Treble is well extended and very smooth in fact smoother than the U12T
Thanks to pritam for recommending this gem
Thank you for the review! The 64 Audio U18s IEM are definitely an excellent choice for those seeking an organic sound with good bass and extended treble. We're glad you appreciate their smooth quality!
Finesse -- That is the word that comes to mind when talking about U18s. A very cable and source picky IEM, it reveals its might when paired correctly. Vocals have never sounded more emotional, the bass is wide and deep, yet the mids never take a back seat. A dark sounding IEM with a high degree of details, a mind blowing speed and a wide soundstage. My favourite when I just want to immerse myself and enjoy the mellow beats. Comes closest to bringing me to the stage.
The Audiocular Spark Hi-Res portable DAC and amp is a compact, budget-friendly device powered by the flagship CX31993 DAC chip and MAX97220 amplifier, delivering studio-quality audio with clear vocals, rich bass, and detailed highs. It provides up to 63mW power output suitable for most IEMs and headphones, improving volume levels and sound clarity significantly over phone. Its solid build quality, portability, and seamless Type-C to 3.5mm compatibility, make it on-the-go music listening experience for me. Some minor background hiss may be audible with sensitive earphones, but overall it offers excellent value for a high-resolution audio upgrade at a very affordable price. This DAC+amp is very good option to be considered under 1,000 rupees, balancing sound quality, convenience, and durability effectively
Works like a charm!
It is good for the budget
In the budget category, these offers LDAC and planar magnetic drivers for truly clean, balanced sound and a unique design. It may have less extra features than other earbuds, but its core audio quality is far better than the usual bass-heavy options.
This is a really great product and the build quality is phenomenal. Thank you guys.
Good value for budget audiophile gear.🔥🔥🔥
smooth tuning, and elegant aesthetics. It excels in vocal clarity, offers a pleasingly balanced sound, and feels premium. ❤️🔥
its been 10 days and so far the dac is working fine and i hope it ll work for the long term. The package arrived in great condition and on time, the quality seems great given that it is audiocular.
It just adds a soul to your IEM's. Totally worth the purchase.
It's a best audio earphone I bought , immersive and clear vocal audio experience and using as a EDC for every journey
I order this IEM after watching too many videos on youtube. I was using apple's wired earphone before. so I was finding for IEM that can be my daily driver. For me these are natural sounding IEMs. I enjoyed them a lot. even lot of my colleagues have tried it. Got positive reviews from them also. The bass in this IEM is not overpowering treble and vocals. They are well tuned. if you want to change the tuning (want more bass) you can do it from tanchjim app(supported only for TYPE C). I have tried it there are so many other presets to. I have tried changing its tuning to simgot Supermix 4 so the bass vocal and treble get boosted. You can consider this as your first IEM.
Thanks to Audio Store I got my iem 3 days earlier and without any damage.
Very helpful in maintaining type C cable
Build quality is top notch. It's heavy but not uncomfortable. Coming to sound it has balanced sound signature with slight emphasis on treble.
Excellent studio quality clear natural audio with good enough bass, well-balanced thanks to the audio store team and Pritaam Halpawat sir, great customer service, and 100% authentic genuine products.
Great
Brand Warranty
100% Original products with brand warranty
7 Days Replacement
On all orders*
Fast & Free Shipping
Ships in 24 Hours*
Secure Payments
Visa, Mastercard, EMI, Net Banking, UPI, BHIM, Wallet's
The Audiocular Spark Hi-Res portable DAC and amp is a compact, budget-friendly device powered by the flagship CX31993 DAC chip and MAX97220 amplifier, delivering studio-quality audio with clear vocals, rich bass, and detailed highs. It provides up to 63mW power output suitable for most IEMs and headphones, improving volume levels and sound clarity significantly over phone. Its solid build quality, portability, and seamless Type-C to 3.5mm compatibility, make it on-the-go music listening experience for me. Some minor background hiss may be audible with sensitive earphones, but overall it offers excellent value for a high-resolution audio upgrade at a very affordable price. This DAC+amp is very good option to be considered under 1,000 rupees, balancing sound quality, convenience, and durability effectively
Works like a charm!
Good sounding IEM's, recommended for beginners looking for balanced neutral sound.
It is good for the budget
Great amp, is actually working,
My previous audiocullor dac doesn't work although it was purchased from Audiostore
In the budget category, these offers LDAC and planar magnetic drivers for truly clean, balanced sound and a unique design. It may have less extra features than other earbuds, but its core audio quality is far better than the usual bass-heavy options.
That upload the graph feature is Killer
Very good dac that give very well balanced output but with slight increase in highs
Great audio quality but only with good dac ...like mine d07 audiocular.
This is a really great product and the build quality is phenomenal. Thank you guys.








