64 Audio U4s In-Ear Monitors - Official Thread

Today marks the launch of the 64 Audio U4s, 64 Audio’s lowest-priced universal in-ear monitors to date at $1099.

From 64 Audio

A quad driver hybrid UIEM featuring ground-breaking patented technologies originally developed for our flagship products in order to bring a wider audience closer to their music. U4s explores a bold new color aesthetic for 64 Audio. The Slate Blue shell color was influenced by some of the world’s most beautiful bluedial timepieces while the unique faceplate pattern is inspired by Muonionalusta meteorite fragments. Both the faceplate and shell’s illuminant properties give it a unique tone in varying lighting conditions.

Its ergonomic anodized aluminum shell houses a single dynamic driver, two balanced-armature drivers, and one patented tia driver; all weaved together with our patented Tia, LID, and Apex technology. The four-way crossover is elevated with the use of our proprietary electronic low-pass filter; reducing low-frequency distortion. The assortment of included apex modules and ear tips are an invitation to further shape the sound based on preference and source material while the ultra- low impedance premium silver-plated copper cable ensures unimpeded signal transmission.

The dissemination of tia technology within our product range brings that classic 64 Audio sound signature to a new price-point. U4s sounds light on its feet while effortlessly delivering physically engaging subbass without bleeding into the mid-bass. Balanced mid frequencies and a pleasant high-mid band respond well to a wide array of music and recording styles at every volume level; present but not fatiguing. The tia high-driver’s open airy quality couples with the extended sound-stage provided by apex for a lifelike sonic experience.

With the Campfire Audio Andromeda now firmly out of the $1099 price bracket, the 64 Audio U4s looks to be a good fit to claim its old throne. Discuss below!

In case you missed it, check out @Precogvision 's written review of the 64 Audio U4s with comparisons to the custom A4s and some brief spotlights on the U12t and U6t.


I suppose I should leave this here too: 64 Audio U4s In-Ear Monitors Review - A New $1000 Benchmark? | TechPowerUp

If you were curious about the various 64 Audio features, this is a great place to start.


Can not wait to receive mines. Seeing both precog and techpowerup reviews seems this will be a stellar set


Hope you enjoy them as much, if not more, than we did!