Check Availability At
Description
EarAcoustic STA-Hi End Series IEM – Redefining Audiophile Performance
Engineered for Audiophile Precision and Power
Introducing the EarAcoustic STA-Hi End Series IEM, where state-of-the-art acoustic engineering meets unmatched musical detail. Designed for audiophiles and sound professionals, the STA series features a dual-core dynamic driver system with Tesla-grade magnetic coils that deliver exceptional power and control across the full frequency spectrum.
A four-unit bilateral driver configuration—powered by N50+N50 magnetic tech—creates breathtaking resolution, dynamic clarity, and a wide soundstage. Experience deep, controlled bass from the 10mm large dynamic coil, and extended highs through a 6mm micro driver, delivering an immersive sound signature from 10Hz to 30kHz.
STA-Hi End – Ultra-Fast and Natural Transient Sound
The STA-Hi End model features a dual-diaphragm design, combining a 10mm beryllium-plated diaphragm and a 6mm polymer composite diaphragm. With an elastic modulus of approximately 300 GPa, the beryllium plating ensures superior transient response, fast signal recovery, and natural tonal balance. Whether it's jazz, classical, or EDM, the STA-Hi End responds with remarkable agility and precision.
STA-Hi End MAX – Durability Meets Sonic Excellence
For even greater resilience and performance, the STA-Hi End MAX upgrades to a 10mm DLC (diamond-like carbon) diaphragm, paired with the same 6mm polymer composite diaphragm. With a higher modulus of around 400 GPa, the DLC driver delivers ultra-fast signal response, reduced distortion, and smoother frequency transitions—ideal for high-resolution tracks and demanding mixes.
Acoustic Tuning That Merges Science with Emotion
Each unit is the result of hundreds of simulation experiments, resulting in a precision-engineered acoustic cavity optimized for resonance and warmth. The target frequency response curve is designed to reproduce music as the artist intended—with rich emotional depth and minimal distortion.
Key Acoustic Specs:
-
THD < 0.5% for pure, accurate tonality
-
Sensitivity > 110 dB/mW for effortless drive from any source
-
Intermodulation distortion < 0.05% for clean, consistent audio
-
Transient response < 3ms ensures snappy and clear transients
-
Low-frequency rebound ≈ 50ms gives depth and presence to bass
-
Signal attenuation < 0.5dB maintains clarity across the range
Craftsmanship Meets Durability
Aesthetically refined with a premium electroplated ABS resin cavity and a zinc alloy frame, the STA series features a metal-coated resin process for a glossy, high-end finish. It’s built not only to sound good but to look stunning and last long.
High-Fidelity Interchangeable Cable System
Each STA model includes a detachable high-definition audio cable made from oxygen-free copper and copper-plated silver. With a soft texture, tangle-free design, and up to 408 strand cores, this cable ensures stable, detailed, and high-resolution transmission. The 0.78mm dual-pin connector and 2.5mm single wire diameter offer durability and easy upgrades.
Why Choose the EarAcoustic STA-Hi End Series?
Whether you’re a critical listener, studio producer, or an audiophile seeking the perfect balance of power, precision, and warmth—the STA-Hi End and STA-Hi End MAX deliver it all. Backed by meticulous design, cutting-edge materials, and premium finishing, the STA Series is a masterpiece of in-ear monitor innovation.
Our Review
You may also like
OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View all
TRUSTED BY OVER 40K+ MUSIC ENTHUSIAST
Let customers speak for us
It's truly velvetty- If I can say so. Good for IEM's with large nozzles .
Delivery on time, Good product, Happy to purchase overall
I own a Simgot ET142. Wanted a pure planar and my choices were the Letshouer S12Pro , 7Hz Timeless and the Sivga Nightingale.
The Sivga isn’t available in India.
The Letshouer reviews had me confused between the S12 and its upgrade the S15.
The 7Hz was a notch lower compared to the Letshouers.
Finally I decided to pitch in for the S15 considering that the audio store has a sale on it and the pricewas better than that offered on HPZ and Conceptkart and Desertkart.
I am happy with my gamble.
Bass , Mids and treble are all aligned perfectly to my preferences. A mild V shaped profile. Rich warm bass and smooth trebles without harshness.
Thank you Audio store.
Pre-ordered the Top pro and received it in a week.
IEM is Excellent
The bass is there, doesn't overwhelm but when it hits you can feel in the chest
Treble is the smoothest I've heard
Vocals are clean
Seperation is top notch
Worth.
The sound is fucking great for the price….the voices rock..bass is not over justified….balanced and provides according to track,one downside because of which I’m rating 4..is the fit…hurts my ears even after 1 hr….might adjust to different ear shapes of diff ppl..overall satisfied for the money….if u skip bass….it kills the market opponents like realme air 7 pro and one plus buds 4 also one more thing ..the case feels a bit cheap…and might get scratched ez..and since it’s quite uncommon set of buds…u don’t get any protective cases as such
TANCHJIM Bunny has an excellent sound signature to start with - clean, energetic and fun it works beautifully with jazz, R&B, hip-hop and even bollywood music. But it's possibilities just start there. Once you connect these IEMs to your phone and download the Tanchjim app, you would discover a ton of sound profiles pre-saved. There are 4-5 official sound signatures, but even more are the access to thousands of fan created sound signatures. You can tune it to any of the hundreds of IEMs available - everyday a new IEM, if you like. The play opportunities are endless. The build could be better - looks kind of cheap compared to the solid metal body of the Chu 2, but no complaints as far as sound goes.
Exceptional delivery by theaudiostore.
The packaging was really well done.
The Bunnys blew my mind when I first used it, it sounds so much clear than my Airpods Pros!
Anyone getting their first IEMs go for this!
The build quality is sturdy & good. The new design is nice. Work well without any hissing noise or heating. Using it on my CMF Phone 1 🙌✨
Adequate purchase, best sound you will hear.
Probably double volume than TWS.
Looks seriously different than other headphones I have used till now, you look different than rest of the crowd(in the gym especially), that makes you feel special 😊☺️
Must go for it Bluetooth & DAC AMP
- Audiocular SPARK DAC is one of the best looking dongle DAC I can find also the audio quality it throws it's just supirior to any normal phone or pc DAC.
-Well there is lot of DAC with same configuration but on higher price this one feels premium and it's just under 1000 bucks so I don't think so you need anything else as a beginner or anywhere for regular use it's best of best.
- I was really confused between salnotes zero 2 and moondrops chu 2. After lot of thinking and chatgpt decided to go for Chu 2 well my initial experience was not good because I was using realme airbuds 5 pro which is a great wireless earphone dual drivers but mostly bass heavy so chu 2 bass felt lacking at start but it's just initial expression once I got comfortable with it is blown my mind cause it's really well balanced you can hear good amount of sound seperation bass is good and don't leak into the other instrument details or vocals.
- I purchased it with audiocular spark DAC
And honestly it's deadly combo it improves so much sound quality and bass and on top of that the fit of chu 2 and cable is really good and with this DAC it feels aesthetically pleasing as well.
Awesome Product...
Awesome headset
