64 Audio Aspire 4


Designed with live music as the primary focus, the 64 Audio Aspire 4 offers a perfectly balanced sound signature that blends accuracy with musicality.

1 in stock (can be backordered)

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Monitor Your Performance – 64 Audio Aspire 4

Introducing the 64 Audio Aspire 4 In-Ear earphones, the next generation of universal in-ear monitors (UIEM) specifically crafted for musicians and live music professionals. Whether you are new to in-ear monitoring, not ready for custom-fit options, need a reliable backup, or prefer the convenience of a universal fit, Aspire 4 delivers best-in-class sound and exceptional ergonomics tailored for stage and studio use.


World-Class Sound for Musicians

Designed with live music as the primary focus, the 64 Audio Aspire 4 offers a perfectly balanced sound signature that blends accuracy with musicality. These in-ear monitors deliver powerful bass capable of handling the toughest frequencies, forward mids that enhance articulation, and sparkling highs that ensure clarity. Aspire 4 sets itself apart from other UIEMs with a sound signature that provides a clear, detailed, and immersive audio experience, making it an ideal choice for musicians who demand precision and reliability.


64 Audio Aspire 4

Heritage of Professional Excellence

Since 2010, 64 Audio has been at the forefront of custom in-ear monitor design, serving some of the world’s top musical talents. The Aspire 4 shares the same legendary DNA and patented technology found in our custom models, making it the ultimate UIEM for anyone who needs to hear like a pro. The Aspire 4 is a testament to our commitment to delivering high-quality audio solutions that meet the rigorous demands of professional musicians.


64 Audio Aspire 4 – New Technologies

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.

Advanced 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.

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


Color: Black
Material: Molded ABS Shell, Stainless Steel Nozzle
Driver Configuration: 1 low dynamic driver, 2 mid BA drivers, 1 high BA driver
Frequency Response: 20Hz – 18kHz
Impedance: 11 ohms @ 1kHz
Sensitivity: 104db @ 1kHz @ 1mw
Isolation: -20db
IPX Cable 48″ Black Detachable Cable with 90 degree 3.5mm jack

What's in the box?

  • 64 Audio Aspire 4 In-Ear Monitor Headphones
  • Carry Case
  • Foam + Silicone Ear Tips
  • 48″ Black IPX Cable
  • Cleaning Tool
  • 1/4″ Adapter
  • Shirt Clip