Description
Next-Generation Performance Monitoring
Monitor your performance with 64 Audio's next-generation universal in-ear monitors (UIEM) specifically designed for musicians and live music professionals. Whether you're just getting into monitoring with in-ears, not ready for customs, need a backup set, or simply prefer generic fitting products, the Aspire 4 offers best-in-class sound and ergonomics.
Unparalleled Sound Quality
With live music at the forefront of our tuning criteria, we aimed for a balanced sound profile that sits between a highly accurate studio monitor and a contoured device for effective self-monitoring. Aspire 4 features huge bass capable of reproducing some of the toughest frequencies with ease, forward mids for clear articulation, and a top-end sparkle that sets it apart from other UIEMs in its class. This powerful sound signature is a perfect blend of accuracy and musicality.
Proven Professional Heritage
Since 2010, we've crafted thousands of custom in-ear monitors for some of the world's greatest musical talents. This experience has shaped our products and technological advancements, leading to the creation of our most accessible UIEM to date. Sharing the same legendary DNA and patented technology, the Aspire 4 allows anyone to hear like a pro.
Innovative Technologies
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Stainless Steel Nozzle: Our stainless steel nozzle, paired with the molded ABS shell, ensures durability for consistent use and ear tip removal. The flange design and mesh grill prevent ear tips from falling off and keep the sound bore free of debris.
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Apex Core: Our patented pressure-relieving technology, integrated seamlessly into the earphone body, uses acoustic filters instead of pneumatically interactive foam to provide a controlled leak.
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Wave Guide: This custom-designed acoustic structure, integrated into the high-frequency balanced armature driver, increases efficiency by directing and focusing energy for crisp and clear sound.
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LID (Linear Impedance Design): This proprietary circuit corrects the non-linear impedances of the drivers, ensuring proper interaction with the source and preserving the desired sound signature.
Frequently Asked Questions
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How is Aspire 4 different from your other custom and universal models? Aspire 4 is not custom fitting and uses foam or rubber ear tips provided with the UIEMs. Unlike other models like U4s and Fourté, Aspire 4 has an ABS molded shell and stainless steel tip, and uses an IPX (T2) socket instead of a 2-pin socket. It does not feature tia™ technology but incorporates a unique waveguide for high frequencies.
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How does Aspire 4 differ from other four-driver models like U4s and Fourté? Aspire 4 features a 3-way crossover (lows, mids, highs) compared to the 4-way crossover in other models. It uses a revolutionary waveguide for the highs and is specifically designed and tuned for musicians and live-audio professionals.
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What does “Hybrid” mean? Hybrid refers to the use of multiple types of drivers: balanced armature drivers for mids and highs, and a single dynamic driver for lows.
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How does apex core differ from apex™ tech? Apex core achieves pressure relief using different internal structures and materials compared to standard apex tech. It is built into the earphones rather than being an interchangeable module.
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Can I use third-party tips with Aspire 4? Yes, any tips with a 5mm nozzle diameter will fit.
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If the cable fails, do I need to send the whole unit for repair? No, the cable is detachable, and you can purchase a new one from our website or any genuine estron IPX (T2) parts supplier.
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Why do I need to adjust the volume when switching to Aspire 4? Different IEM models have varying sensitivity specs, so adjusting the volume is normal and not an indication of quality or volume capacity.
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Where is Aspire 4 made? Aspire Products are designed, packaged, and quality checked by skilled technicians in the United States and assembled in China using globally sourced components.
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TRUSTED BY OVER 30K+ MUSIC ENTHUSIAST
Let customers speak for us
It surely increases all parameters of sound quality like stereo effects, all frequencies, soundstage and imaging.
I am saying it based on using it with EPZ Q1 pro, Simgot EW 300 DSP with hiby R4 DAP for a week now.
Highly recommend to upgrade existing budget IEM.
Although Cable is thick, its very much flexible and handy. No issues of handling and carrying it because of its thickness.
It's thickness add charm to overall looks of IEM.
Super Bass and ultra clear vocals in
affordable price..
REVIEW AFTER ONE MONTH DAILY USE
Initially, my set up was 'Samsung S 23 ultra + Simgot ew 300 DSP' for daily music listening hobby.
While upgrading from this set up, 1st I bought HIBy R4 DAP, used it for 10 days with same IEM and then decided to go for another big upgrade for iem. After trying existing iem on multiple phones, surprisingly I observed that 'Hiby R4 DAP' is superior even on high-end phones in terms of sound quality.
While upgrading IEM, I kept below criteria and told Mr. Pritam the same.
1. IEM with crystal clear sound with all details & balanced sound.
2. Ultra wide Soundstage & clear imaging
3. Clear stereo effect
4. It should separate Instruments sounds when there are multiple instruments in song/music.
5. It should handle bass heavy songs without compromising vocals & trebles.
6. Comfortable for long hours.
Now after using it more for one month, I can say that -THIS IEM HAS FULLFIELD EACH REQUIREMENT & ASPECT OF SOUND QUALITY.
Only downside I felt that Packaging and Case should be premium in this price tag.
EXPERIENCE WITH AUDIO STORE -
I had some options for IEM in my mind based on previous listening sessions at audio store office as well as youtube & web reviews.
I recently visited audio store office two times for some other product requirement, All those previous options, I tested all of them again. I found that Mr. Pritam's suggestion to buy MK3 over other IEMs is worthy.
Thanks a million Mr. Pritam for always helping & guiding before taking any major purchase.
Superb Cable!
Works well with Zero 2
Value for money product
I am very thank full
I really like the quality of the product not only that I really like your store Too
I want to work with your company as a employee please let me know if there is any openings
I'm an IEM guy and after a long time I've been really impressed with a speaker. And at such a fantastic price point. The sound is so smooth, you can listen to it for hours without feeling fatigued, and most important thing for me was, it sounds just as good on low volume when you want to listen to something in the background, but have guests and are going to talk over it.
Incredible separation. Very good stage, fills a 10x10 area nicely (with windows closed). Bigger area and you might feel the need for two of them (heh). Excellent details on both the bass and treble. This is very much a fun sounding speaker. Female vocals are slightly more recessed than the male ones, but the separation will ensure that they come through nicely nonetheless. Drums on this thing are just a blast (literally!). Strings are so melodious.
Last but not the least, looks are killer. Everyone notices it instantly (although it blends very well with the home decor) and asks what it is. Pick it up. You cannot go wrong.
This headphone needs some time to be given. I have sold these 2 times and bought again and now they are permanent in my collection. I now understand them and you need a seriously good amplification system and then they are much more of a lushfull/true/audiophile sound that surpasses almost all headphones under Rs. 50000 easily (including Hifimans).
It has a satisfying amount of bass
Crispy treble region and clean sound signature
Comfortable fit
Pair it with a good DAC and see the magic happen!!
Must have IEM!!
ℍ𝕠𝕨 𝕕𝕠 𝕪𝕠𝕦 𝕤𝕙𝕣𝕚𝕟𝕜 𝕒 𝕙𝕚 𝕖𝕟𝕕 𝕒𝕦𝕕𝕚𝕠 𝕤𝕪𝕤𝕥𝕖𝕞 𝕒𝕟𝕕 𝕨𝕣𝕒𝕡 𝕚𝕥 𝕒𝕣𝕠𝕦𝕟𝕕 𝕪𝕠𝕦𝕣 𝕖𝕒𝕣𝕤. 𝕎𝕙𝕖𝕟 𝕒 𝕗𝕣𝕚𝕖𝕟𝕕 𝕤𝕦𝕘𝕘𝕖𝕤𝕥𝕖𝕕 𝕥𝕙𝕚𝕤, 𝕀 𝕥𝕙𝕠𝕦𝕘𝕙𝕥 𝕚𝕥 𝕒𝕝𝕝 𝕡𝕠𝕡𝕡𝕪 𝕙𝕖𝕟! 𝕋𝕙𝕖 𝔻-𝟘𝟠 𝕥𝕦𝕣𝕟𝕖𝕕 𝕠𝕦𝕥 𝕥𝕠 𝕓𝕖 𝕒 𝕨𝕙𝕠𝕡𝕡𝕖𝕣 . 𝕀𝕥 𝕞𝕠𝕣𝕖 𝕥𝕙𝕒𝕟 𝕕𝕠𝕖𝕤 𝕨𝕙𝕒𝕥 𝕚𝕥 𝕡𝕣𝕠𝕞𝕚𝕤𝕖𝕤, 𝕗𝕠𝕣 𝕒 𝕞𝕖𝕒𝕤𝕝𝕪 𝕓𝕦𝕕𝕘𝕖𝕥 𝕠𝕗 𝟙𝕜. 𝕀 𝕡𝕦𝕝𝕝𝕖𝕘𝕖𝕕 𝕠𝕟 𝕥𝕠 𝕒𝕟 𝕠𝕡𝕡𝕠 𝕫-𝟡 𝕒𝕟𝕕 𝕒𝕟 𝕄𝕚- 𝟙𝟙 𝕝𝕚𝕥𝕖. 𝕀 𝕥𝕣𝕚𝕖𝕕 𝕚𝕥 𝕠𝕟 𝕞𝕦𝕝𝕥𝕚𝕡𝕝𝕖 𝕔𝕒𝕟𝕤. 𝔸 𝕜𝕝𝕚𝕡𝕤𝕔𝕙 𝕤-𝟜, 𝕒 𝔽𝕠𝕔𝕒𝕝 𝕖𝕒𝕣𝕡𝕙𝕠𝕟𝕖 𝕒𝕟𝕕 𝕗𝕚𝕟𝕒𝕝𝕝𝕪 𝕒 𝔸𝕂𝔾-𝕜𝟛𝟟𝟙. ℕ𝕠 𝕨𝕠𝕣𝕕𝕤 𝕥𝕠 𝕕𝕖𝕤𝕔𝕣𝕚𝕓𝕖 𝕥𝕙𝕖 𝕒𝕦𝕕𝕚𝕠 𝕖𝕩𝕡𝕖𝕣𝕚𝕖𝕟𝕔𝕖. 𝕁𝕦𝕤𝕥 𝕓𝕝𝕠𝕨𝕟 𝕒𝕨𝕒𝕪. 𝔸 𝕟𝕠 𝕓𝕣𝕒𝕚𝕟𝕖𝕣; 𝕠𝕣𝕕𝕖𝕣 𝕠𝕟𝕖 𝕒𝕟 𝕪𝕠𝕦 𝕨𝕚𝕝𝕝 𝕥𝕙𝕒𝕟𝕜 𝕞𝕖 𝕗𝕠𝕣 𝕥𝕙𝕒𝕥.
Great product , comfortable for median and large size ears, bass is mid-level, nice gift packing
Comfortable fit, perfect for long listening sessions.
It's affordable yet can punch above 5 times the cost bracket. The planar soundstage is massive. Separation is great. I love the red filter. Jazz, blues, and instrumental sounds mind-blowing. Worth every penny
The case is really good and keeps my IEM safe.
Top-notch product, exceeded my expectations.
