Hello Head-Fi
We're excited to have a totally new UIEM to share with you. Welcome Aspire 4 to the 64 Audio lineup of UIEMs: a hybrid four-driver professional monitoring tool.
If you're familiar with our products over the years you'll know that since the development of Fourté and U18t we've released 13 models built with our beautiful and comfortable milled aluminum shells over these last eight or so years. Aspire 4 is unique in so many ways, but at first glance the most obvious is its shape and outer material setting it apart from the rest of our current other 10 UIEM models.
The four part construction is made up of an abs molded shell and stainless steel stepped nozzle.
Continuing with our trickle down tech philosophy, Aspire 4 features our Apex Core, LID, and waveguide tech to achieve this best in class performance. The three BA + single DD drivers are configured using an integrated electronic 3-way crossover network. The 9mm DD benefits from the innovation seen in our Fourté Blanc, with the use of our new textile mesh filters; now seen in most of our DD implementations. This is the same driver used in our Nio UIEM. While Aspire 4 doesn't use our legendary tia™ HF driver, we've used what we learned in the development of Volür's HF waveguide to design a new waveguide for the BA used here. With the implementation of this waveguide we round off Aspire 4's huge, but balanced, sound with the high-frequency detail and air that 64 Audio UIEMs are known for.
While Aspire 4 was designed for musicians and live-audio professionals to monitor performances, it is not unique in that we've created many products aimed at one audience but satisfying others in the process. The most recent example being U4s, which started as the custom A4s. Similarly products that are aimed at audiophiles and high-end audio enthusiasts are picked up by professionals, like A18t, and we're all about it. Aspire 4 has all of the hallmarks of the classic 64 Audio sound in a new lighter/smaller package. While it is certainly not a "budget" IEM in today's standards it is a great way to get into our UIEM range and has the sonic + technical capability of being your end-game IEM.
Lear more by visiting the Aspire 4 product page on our website:
https://www.64audio.com/products/aspire-4
We're excited to have a totally new UIEM to share with you. Welcome Aspire 4 to the 64 Audio lineup of UIEMs: a hybrid four-driver professional monitoring tool.
![Aspire-Interface-6.jpeg Aspire-Interface-6.jpeg](https://cdn.head-fi.org/a/12408418.jpeg)
If you're familiar with our products over the years you'll know that since the development of Fourté and U18t we've released 13 models built with our beautiful and comfortable milled aluminum shells over these last eight or so years. Aspire 4 is unique in so many ways, but at first glance the most obvious is its shape and outer material setting it apart from the rest of our current other 10 UIEM models.
![Wide-neutral.jpg Wide-neutral.jpg](https://cdn.head-fi.org/a/12408419.jpg)
The four part construction is made up of an abs molded shell and stainless steel stepped nozzle.
![neutral-Back.png neutral-Back.png](https://cdn.head-fi.org/a/12408539.png)
Continuing with our trickle down tech philosophy, Aspire 4 features our Apex Core, LID, and waveguide tech to achieve this best in class performance. The three BA + single DD drivers are configured using an integrated electronic 3-way crossover network. The 9mm DD benefits from the innovation seen in our Fourté Blanc, with the use of our new textile mesh filters; now seen in most of our DD implementations. This is the same driver used in our Nio UIEM. While Aspire 4 doesn't use our legendary tia™ HF driver, we've used what we learned in the development of Volür's HF waveguide to design a new waveguide for the BA used here. With the implementation of this waveguide we round off Aspire 4's huge, but balanced, sound with the high-frequency detail and air that 64 Audio UIEMs are known for.
![Aspire-4-Drivers.png Aspire-4-Drivers.png](https://cdn.head-fi.org/a/12408438.png)
While Aspire 4 was designed for musicians and live-audio professionals to monitor performances, it is not unique in that we've created many products aimed at one audience but satisfying others in the process. The most recent example being U4s, which started as the custom A4s. Similarly products that are aimed at audiophiles and high-end audio enthusiasts are picked up by professionals, like A18t, and we're all about it. Aspire 4 has all of the hallmarks of the classic 64 Audio sound in a new lighter/smaller package. While it is certainly not a "budget" IEM in today's standards it is a great way to get into our UIEM range and has the sonic + technical capability of being your end-game IEM.
![Aspire-Interface-9.jpeg Aspire-Interface-9.jpeg](https://cdn.head-fi.org/a/12408441.jpeg)
Lear more by visiting the Aspire 4 product page on our website:
https://www.64audio.com/products/aspire-4
Last edited:
![]() |
![]() |
Stay updated on 64 Audio at their sponsor profile on Head-Fi.
![]() ![]() ![]() ![]() ![]() |