64 Audio Aspire 4
Four Driver In-Ear Monitors
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 Aspire 4 offers best-in-class sound and ergonomics.
World Class Sound
With live music at the forefront of our tuning criteria do we make a highly accurate unforgiving studio monitor or a contoured device that helps musicians hear themselves more effectively? As with many of our monitoring tools the answer is somewhere in the middle. Huge bass that can reproduce some of the toughest frequencies in the audible spectrum with quick ease. Forward mids that are precisely elevated for articulation in the most vital region of instruments and voices. Plenty of top end sparkle really separates Aspire 4 from any other UIEM in its class, making this powerful sound signature a perfect blend of accuracy and musicality.
Professional Heritage
Since 2010 we’ve crafted thousands of custom in-ear monitors for some of the world’s greatest musical talent. Working with these discerning and critical entertainers has shaped our products and technological development, culminating in our most accessible UIEM to date. Sharing that same legendary DNA and patented technology, Aspire 4 is the ultimate UIEM for anyone who needs to HEAR LIKE A PRO.
Featured Technology
apex® core
Our patented technology seamlessly integrated into the body of the earphone. The pressure relieving channel provides our controlled leak via acoustic filters as opposed to pneumatically interactive foam in our traditional Apex™ implementation. Aspire 4 users can significantly reduce ear fatigue while maintaining roughly -20db of noise isolation.
waveguide
Custom designed acoustic structure integrated onto the high-frequency balanced armature driver. Unique in its shape and implementation, this waveguide increases the driver’s efficiency by directing and focusing its energy for a crisp and clear sound. While hard to compete with the legendary response of our patented tia™ high-driver, this configuration may be the closest thing to it on the market.
LID®
Stainless Steel Nozzle
64 Audio Aspire 4 Specifications
- Material: Molded ABS Shell + Stainless Steel Nozzle
- Transducer Type: Dynamic + Balanced Armature
- Transducer-Configuration: 1 High Driver – 2 Mid Drivers – 1 Dynamic Low Driver
- 20hz – 18kHz Frequency Response
- 104 dB/mW Sensitivity @1kHz
- Integrated 3-way Passive Crossover
- 11Ω Impedance @1kHz
- Isolation -20dB apex core® technology
Included
- Aspire 4 Universal In-Ear Monitors
- 48” Black IPX Cable
- 64 Branded Zipper Case
- Foam & Silicone Ear Tips
- Cleaning Tool
- 1/4” Adaptor
FAQ
How is Aspire 4 different from your other custom and universal models?
Aspire 4 isn’t custom fitting, so similar to our other Universal In-Ear Monitors (UIEMs) it requires the use of foam or rubber ear tips which are provided with the UIEMs. Unlike our other UIEMs (U4s, U12t, FourtĂ©, etc) Aspire 4 is built with an ABS molded shell and a stainless steel tip. It’s also built with an IPX (or T2) socket as opposed to a 2-pin socket. Aspire 4 is also our only UIEM that isn’t built with our tiaTM technology.
Since it has four-drivers how does it differ from your other four-driver models like U4s and Fourté?
Along with the redesigned form factor and shell materials, Aspire 4 is our only four-driver model that is crossed over 3-ways (lows, mids, highs) as opposed to those other models that are 4-way crossovers. While Aspire 4 doesn’t use our tiaTM driver for the highs we developed a revolutionary waveguide to bring its highs to our incredibly high standards. It is also the only UIEM specifically designed and tuned for musicians and live-audio professionals as opposed to audiophiles and high-end audio enthusiasts.
What does “Hybrid” mean?
Hybrid refers to our use of multiple styles of drivers to achieve our desired sound. Aspire 4 combines the use of balanced armature drivers for the mids and highs, and a single dynamic driver for the lows.
How does apex core differ from your patented apexTM tech?
Apex core, which is also used in Duo, achieves the same pressure relief using a different internal structure and material compared to our standard apex tech. Similar to some of our other UIEMs, Aspire 4’s apex core tech is built in rather than an interchangeable module.
If I can’t get a good fit with your tips, am I able to use third party tips?
Yes you can use any tips you’d like, the nozzle outer diameter is 5mm so that is the dimension you need to keep in mind when trying third party tip.
If the cable fails do I need to send the whole unit in for repair?
No, since the cable is detachable you can just buy a new cable from our website or any other cable that uses genuine estron IPX (or sometimes called T2) parts.
When I plug these in I have to turn the volume higher/lower than my previous set. Does that mean they’re better/worse?
Since most IEM models have different “sensitivity” specs you will find that anytime you change your IEM model you might need to adjust your volume. It isn’t necessarily an indication of quality or volume capacity.
Where is Aspire 4 made?
Aspire Products are Designed, Packaged and QC’d by highly skilled technicians in the United States. Assembled in China using components sourced globally from trusted suppliers.
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