Audio Technica’s mid-range IEM. It is an audiophile grade IEM that double as a sports IEM, thanks to the flexible wire frame that loop around the back ear. The cable doesn’t touch the face, it has mic and one button control for media playback and call control. Sadly no volume rocker. The package come with a soft pouch and 2 additional size eartips. | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review

Design wise it look awesome and come in different vibrant colours since it’s aim toward young adults. It features a A2DC (aka Audio Designed Detachable Coaxial) connector, you can detach it and swap with other cable of you choice (including wireless option). | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review

It features a Live-Tuned Dual Symphonic Driver that comprised of two drivers 8.8mm arrange in parallel within a single housing. This aim to reduce diaphragm distortion and provide a balance sound signature and powerfully punchy bass experience. From our test, yes it does sound nearly identical to live-concert music or realism as if you have a front row seat view. The sound tube (or sound pipe) is made of stainless steel which provides better sound reproduction when the buds produce higher frequencies (plastic housing absord some sound wave thus usage of metal). | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review

The tube length is 0.6cm long and it goes deep into the ear canal provide a great isolation isolation from the the world around you. The tube is also angled for better comfort fit. For the microphone test check our video review.

Technical Specification

Driver Diameter Dual parallel 8.8mm (Each Side)
Frequency Response 5Hz – 25,000Hz
Maximum Input Power 200mW
Sensitivity 100dB/mW
Impedance 24.3 ohms
Weight 6.5g
Cable 1.2m detachable cable with smartphone mic and control | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review

Audio quality

We test this on the iPhone 6 with Cozoy TAKT (pronounce as TAKE)(click here to know more) at the 5th volume bar.


Tiaan – Be Ok

  • Low bass frequency pressure (aka air movement) is superb, booming in your ears loudly even at low volumes, energy is superb with zero distortions.
  • The bass is well bodied, the vibration is highly noticeable and fade butter smooth.
  • The bass doesn’t eat into the vocals

Pia Mia – Do It Again

  • Bass pressure is crazy good as it fade, you can hear the vibrations fade smoothly, energy is superb.
  • Bass doesn’t eat into the vocals, clear separation between the two, bass slightly overpowers the vocals.
  • Bass subtle vibration at the 2.05 mark is eargasm grade, like awhhhhhhhh yeah. | Calvin Pixels | Calvinpixels | Audio Technica ATH-LS50iS Review


Pentatonix – See through

  • Mitch Grassi, Hi-pitch male tenor voice, perform excellently, right amount shine at the highs esp at 1:47 mark onwards. Vocal overall perform excellent.
  • Vocal beatboxing, humming and echoing the best we have heard on any IEM so far
  • Vocal feel very lively as if they’re beside you, every diction and pronunciation is spot on, and zero muffling sound

Violinder – Raindrops

  • Piano/Violin is super sharp at the high frequency, great amount of shine.
  • Drum tone are well bodied, feels and sound like the real drums.
  • Bass/drum is balance with the Piano.violin tone, none tries to outdo each other.

This IEM with the Live-Tuned Dual Symphonic Driver is actually a real thing not some random marketing scam. It performs well from the ultra low frequency to the high frequency easily. Punchy bass, Crystal clear highs. This beats the KZ and Unique Melody that we review in the past and takes 2nd place for now in our list.

Purchase the Audio Technica ATH-LS50iS Here

Amazon (USA Link)| Amazon (International Link) | Lazada

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