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64 Audio Duo In-Ear Monitors
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64 Audio Duo In-Ear Monitors

$381.00 Original price was: $381.00.$99.99Current price is: $99.99.

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SKU: YMF5Y 641578377 Categories: Earphones & Earbuds, Headphones
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Duo

Dual Driver Universal In-Ear Monitor

Made in the USA

Duo is an innovative dual driver hybrid design. Built with the complete Tia System, Apex Core, Wave Sync, and LID technologies, Duo presents 64 Audio’s signature balanced sound in a whole new way.


The open audio design captures the listener’s auditory senses while helping them forget they’re wearing IEMs in the first place — a perfect option for music, gaming, home theatre, and more.


Duo is a timeless and elegant design reminiscent of open-back over-ear headphones, but with the intimacy of an in-ear monitor. Its complex faceplate assembly allows air to flow freely for a natural, open soundstage with exceptional wearing comfort, minimal pressure fatigue, and more ambient awareness than conventional IEMs.



64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Duo Collage CC WEB

SOUND

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.


The relaxed tonality lets you put them on and get lost. Duo presents a non-analytical top-end while still retaining air and sizzle for engagement.

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.


64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Duo 3 WEB

TECHNOLOGY

Duo features exclusive technologies that challenge traditional in-ear monitor designs to give you the absolute best listening experience. 


64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store TechLogo Left Tia
Tubeless In-Ear Audio
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.

64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Tia Driver

The tia driver is an open balanced armature speaker design that brings new meaning to resolution and transparency. By opening a balanced armature, the diaphragm becomes fully unobstructed, unleashing the sound potential of the driver. This eliminates a lot of the vibrations and resonances that are inherent in conventional, closed balanced armature designs. With this new method of producing and delivering sound to the ear, conventional sound tubes and dampers are no longer necessary.
64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Tia Single Bore
The tia single-bore design is a huge leap forward in eliminating unwanted tube resonance. The large bore itself serves as a sound-shaping chamber and aids the tia high driver in delivering a linear and coherent frequency response. Because of the extremely short sound path of the tia high driver, a remarkable high-frequency extension and smoothness is achieved. The large single bore also helps prevent clogging of the tip and obstruction of sound.

64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Tia Acoustic Chambers
The tia acoustic chambers further shape the sound of the tia driver. This chamber optimizes driver performance by giving it its own space, and tunes the drivers without introducing unwanted resonances. Each driver is perfectly matched to its acoustic chamber just like a pair of speakers are tuned to a studio control room, delivering a three-dimensional soundstage unmatched by any other IEM.
64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store TechLogo
Air Pressure Exchange Core
Apex Core is a deeper understanding of air movement within an earphone system, innovating upon 64 Audio’s renowned Apex system. 

When you seal a miniature speaker in an ear canal, the air inside becomes trapped. As the speaker produces sound, it moves the air and causes the eardrum to work excessively. The pressure exerted on the eardrum causes ear fatigue, also known as listener fatigue. Apex Core relieves this pressure, allowing the eardrum to move naturally, so you can comfortably listen longer.

Duo’s faceplate features a striking perforated acoustic grill that — when combined with a system of channels and chambers — leaves the shell of the IEM open to the outside atmosphere for a less obstructed airflow. The result is an effortless reproduction of music, more open soundstage, and minimal physical fatigue.

64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store TechLogo WaveSync
Wave Sync
Due to the high crossover point between the two drivers — one dynamic, the other a balanced armature — Wave Sync was developed to ensure impressive hybrid coherence; another industry first.

While dynamic drivers deliver impactful bass, they are slower than balanced armatures, leading to time-domain and timbral inconsistencies when combined. 
By using a type of “all-pass” filter and allowing the dynamic driver to produce midrange, we’re able to introduce a crossover while correcting for time, without having to change the physical distance between the drivers.
64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store TechLogo Left LiD
Linear Impedance Design
Smartphones, body packs, amps, and DAPs produce audio with different output impedances. The interaction of the earphone impedance curve with the sources may result in the same IEM sounding different with different sources.

LID is a proprietary circuit that corrects the non-linear impedances of the drivers, restoring proper interaction with the source and preserving the desired sound signature, so you can enjoy the same sound across sources.

CABLE

64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store 64 Premium Cable Black

64 Audio’s new, low resistance cable is included in black.


It features a branded straight 3.5mm metal jack, as well as a metal synch and branded metal bifurcation.

Our classic angled 2-Pin connectors are situated at the end of an ergonomic curve in the cable to accommodate a comfortable fit around the ear without a memory wire. The new soft jacketing minimizes tangling and microphonic noise. 

  • .78mm Pins
  • 0.23 Ohms Total Impedance 
  • 7 x 7 x 4 Multi-Twist 
  • Silver Plated OCC Copper Wire
  • 26 Awg


IN THE BOX

  • Duo Universal In-Ear Monitors
  • 64 Audio Premium Leather Case
  • TrueFidelity Foam Eartips (S,M,L)
  • SpinFit Silicone Eartips (S,M,L)
  • Silicone Eartips (S,M,L)
  • 48″ Black Premium Cable
  • Round Sticker


SPECIFICATIONS


64 Audio Duo In-Ear Monitors -Trendy Electronic Audio Supplies Store Duo Canada

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)
Impedance
9Ω
Crossover
Integrated 2-way passive crossover
Isolation
-12dB internal apex technology

For hygienic reasons, there are no returns on earphones once opened.


All our earphones are available for personal demonstration in-store. We encourage you to try before buying to ensure satisfactory sound, fit, and functionality. 
If an item is defective upon receipt, please notify us within 30 days of purchase so we can arrange an exchange. For issues following 30 days, we will work with you and the manufacturer within the scope of each brand’s warranty and service policies.


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