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The X5i Titanium 
Five Driver 
In-Ear Headphones


The X5i Titanium-
In pursuit of ultimate sound

The X5i Titanium is specially designed for listeners who are pursuing the ultimate high fidelity sound quality and authentically reproduces every musical detail and performers’ raw emotion on site.


​High-end five driver hybrid configuration

The X5i Titanium features four especially custom Knowles Balanced Armature drivers reproducing even the smallest musical note from 5Hz to 70,000Hz accurately plus the new MAS full-range Titanium dynamic driver offering solid bass and warm sense of listening. The five high-end drivers presents the most authentic and natural sound as if you were in a live concert hall.


Proprietary acoustic design

The Core Array Technology ™ is MAS' proprietary coaxial acoustic design making sound waves of all drivers are aligned to achieve less sound degradation and a spacious soundstage.  The rigid metal construction of the X5i Titanium eliminates vibration and unwanted resonance to reproduce the purest sound possible.

Perfect match with high- resolution audio streaming 

Featuring high sensitivity and low impedance, the X5i Titanium is easy to drive from your mobile devices and ideal for high quality music streaming. Now you can immerse yourself in the high- resolution music through streaming services such as Apple Music, Tidal, Qobuz, Deezer, KK BOX…etc

Upgraded silver-coated OFC Cable 
Soft Braid Cable
Shielding Layer
Anti-Vibration Insulator
Oxygen Free Copper

Upgraded sliver-coated Oxygen-Free Copper cable

The X5i Titanium uses a new upgraded silver-coated Oxygen-Free Copper (OFC) cable which is designed to minimize the signal transmission loss to deliver finer details and smoother treble sounds. This audiophile grade silver-coated OFC cable also features a special shielding insulator layer and braid structure to cut outside touch-noise and against vibration and works with all devices with a standard 3.5mm audio jack.


Detachable cable design with MMCX connectors

The X5i Titanium features detachable cable design to let you replace cables with ease if needed or fine tune your X5i Titanium sound through a different cable. The X5i Titanium also uses high quality precision MMCX connectors to ensure stable audio connection and eradicate the problem of sound interrupting.   

Simple aesthetic and premium build quality

Featuring precision CNC metal parts with anti-fingerprint matt coating and original leather-like surface treatment, the X5i Titanium exudes simple aesthetics,  exquisite craftsmanship and superior build quality. The X5i Titanium’s special magnetic clipping design also prevents earbuds from falling apart or losing.


Complete accessories

The X5i Titanium comes with 3 sets of premium memory foam ear-tips, 4 sets of high quality silicon ear-tips and 3 sets of ergonomic ear-wings to provide perfect fit and wearing comfort for different shapes of ears. The hard carrying case and soft carrying pouch offer the best protection to your X5i Titanium.

Interchangeable Headphone
Cable System


All MAS headphones are compatible with not only the complimentary silver-coated OFC cable delivering maximum audio fidelity but also the other MAS optional cables providing a variety of special features below.

Optional Cables:

  • The XX Type-C Headphone Cable provides 7.1 channel 3D surround sound and Hi-Res DAC function.

  • The XX Bluetooth Cable provides stable Bluetooth wireless connection feature. 

  • The XX Remote Cable with MEMS microphone provides extremely clear call quality.



Please connect and disconnect the MMCX

cables vertically to the jacks or earbuds.

Accessory Kit

  • A silver-coated OFC cable with 3.5mm gold plug

  • Four sets of silicon ear tips (S/M/M/L)

  • Three sets of memory foam ear tips (S/M/L)

  • Three pairs of ear wings (S/M/L)

  • A hard carrying case

  • A soft carrying pouch

  • A product warranty card



  • Driver Design: Five driver hybrid configuration

         (4 BAs + 1 Dynamic)

  • Impedance: 12Ω

  • Frequency Response: 5Hz~70,000Hz

  • Sensitivity: 105db/mW

  • Headphone connector: MMCX

  • Headphone cable connector: MMCX and 3.5mm gold-plated audio plug

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