Ultrasone Ruby Sunrise Limited Edition In-Ear Headphones (Open box) headphone A2DC Over the course of 3-years

Over the course of 3-years of intensive research and 9 working prototypes deployed in real-world applications

and the microprocessor control circuitry (often a local source of digital noise) has separate regulation

Isolation and comfort are enhanced by the four sizes of included silicone ear-tips (XS/S/M/L)

3V UnBAL/6

its rigidity and the absorption of parasitic resonances

Ultrasone Ruby Sunrise Limited Edition In-Ear Headphones (Open box) headphone A2DC Over the course of 3-yearsULTRASONE RUBY SUNRISE: The collectors item With the Ruby Sunrise we are introducing a sibling model for the SAPHIRE in a limited edition of 100 pieces. The Ruby Sunrise uses a total of six drivers for its four paths. Two balanced armature drivers reproduce the bass, two more each in the middle and high range. In addition, two electrostatic drivers work as super tweeters in the compact all aluminum housing for the best high end sound. The limited