64 Audio – Aspire 4

A performance monitoring tool that offers the same outstanding sound characteristics and technology as the custom in-ear monitors used by the world’s best artists. This new design emphasizes ergonomic comfort without sacrificing performance. It was designed and engineered by the creative team responsible for all 64 Audio’s groundbreaking IEMs.

1.049,00 

incl. 19% VAT

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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 64 Audio’s tuning criteria, do they make a highly accurate unforgiving studio monitor, or a contoured device that helps musicians hear themselves more effectively? As with many of their 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, 64 Audio has 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 their products and technological development, culminating in their 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

64 Audio’s patented technology is seamlessly integrated into the body of the earphone. The pressure relieving channel provides controlled leak via acoustic filters as opposed to the pneumatically interactive foam in the 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 the patented Tia™ high-driver, this configuration may be the closest thing to it on the market.

LID®

Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 9 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response 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.

Stainless Steel Nozzle

The stainless steel nozzle, coupled to the molded ABS shell, provides durability needed for consistent use. With a flange design and mesh grill, ear tips won’t fall off by mistake and the sound bore will remain free of debris.

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 other 64 Audio models?

Aspire 4 isn’t custom fitting, so just like 64 Audio’s other Universal In-Ear Monitors (UIEMs), it requires the use of foam or rubber ear tips which are provided with the UIEMs. Unlike their other UIEMs (U4s, U12t, Fourté, 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 64’s only UIEM that isn’t built with their Tia™ technology.

How does it differ from similar four-driver models like U4s and Fourté?

Along with the redesigned form factor and shell materials, Aspire 4 is 64 Audio’s 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 the Tia™ driver for the highs, the brand has developed a revolutionary waveguide to bring its highs to 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 the use of multiple styles of drivers to achieve the 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 the patented apex™ tech?

Apex core, which is also used in Duo, achieves the same pressure relief using a different internal structure and material compared to their standard apex tech. Similar to some of the other UIEMs, Aspire 4’s apex core tech is built in rather than as an interchangeable module.

If I can’t get a good fit with the provided tips, am I able to use third party ear 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 purchase a new cable from the same manufacturer or any other cable that uses genuine estron IPX (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.

Product safety

Manufacturer information

64 Audio
4510 NE 68th Dr. Suite 102
Vancouver, WA 98661
United States
info@64audio.com

Person responsible for the EU

Kalani Hiramoto
64 Audio
4510 NE 68th Dr. Suite 102
Vancouver, WA 98661
United States
info@64audio.com

Product safety documents

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