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64 Audio DUO (2021) Universal Hybrid Two Driver Universal In-Ear Monitor
64 Audio’s latest UIEM, Duo, is a dual driver hybrid design. Built with the complete Tia System, Apex Core, Wave Sync, and LID, Duo presents 64 Audio’s signature balanced sound in a whole new way. The simple audio design captures the listener’s auditory senses while forgetting they’re wearing IEMs in the first place.
The complex faceplate assembly not only serves an important role in protecting the shell of the IEM while allowing air to flow freely, it is also a major step in 64 Audio’s product design evolution. Duo is a timeless and elegant design reminiscent of open-back over-ear headphones.
Duo feels light, leaving your ears feeling open and relaxed even for long listening periods. You feel simultaneously connected to your physical surroundings while you’re enveloped by music. Relaxed tonality lets you put them on and get lost. It’s able to present a non-analytical top-end while retaining air and sizzle. The vast open air sensation supports an unobstructed soundstage with impactful center imaging (unlike many other open back headphones) as well as no loss of bass. Duo effortlessly produces deep and rich low frequencies with plenty of sub bass.
Exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience
Duo features the following unique technology:
Rather than constricting the sound of the drivers by fitting a tube onto them, Duo’s complete Tia
System reduces unwanted resonance and distortion by allowing the 9mm Dynamic Driver + Tia High Driver to radiate freely into the single large Tia bore with no obstructions to the front of the drivers.
Apex Core is a deeper understanding of air movement within an earphone system.
Duo’s faceplate features a striking perforated grill that leaves the shell of the IEM open to the
outside atmosphere for a less obstructed airflow resulting in an effortless reproduction of music
and minimal physical fatigue.
Due to the high crossover point between the two drivers, Wave Sync was developed to ensure
coherence; another industry first. By using a type of “all-pass” filter, we’re able to introduce a
crossover while correcting for time without having to change the physical distance between the drivers.
Driver Type/Count: 2 Drivers - One dynamic driver and one balanced armature driver
Driver Configuration: 1 tia high, 1 dynamic low
Frequency Response: 20Hz – 20kHz
Sensitivity: 98dB/mW (98dB @ 1kHz @ 1mW (95mV)
Crossover: Integrated 2-way passive crossover
Isolation: -12dB internal apex technology