FiiO FA7s Six Balanced Armature In-Ear Monitors (IEMs)


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Firing on all frequencies

The FiiO FA7s is an in-ear monitor driven by six balanced armatures. With a stunning medical-grade steel construction, a sophisticated crossover system, and an arsenal of accessories, it accommodates a wide range of ear shapes and music genres in a strong and stylish chassis.

Six balanced armatures

Unlike a traditional IEM that handles the entire frequency range with a single driver, the FA7s splits the frequency range among six drivers. The result is greater speed, accuracy, and detail. The low-frequency and high-frequency drivers are made by Knowles, while the mid-frequency driver is a custom unit exclusively made for FiiO.

Expertly separated three-way crossover

Splitting the frequency range among six drivers isn’t an easy thing. Once split, drivers naturally produce frequencies above and below their designated range, creating redundancies which overemphasize certain frequencies over others. To prevent these redundancies, the FA7s uses a three-way crossover system, keeping each driver in its “lane” and ensuring even representation across the whole frequency range.

Product highlights

  • 6 Knowles BA drivers cleanly separate highs, mids, and lows
  • 3-way crossover system prevents redundancies among drivers
  • 316L stainless steel construction provides medical-grade strength
  • 3rd-gen industrial design
  • High-purity silver-plated monocrystalline copper cable 
  • Angled MMCX connectors for outstanding ergonomics 
  • Twist-lock swappable plugs makes swapping terminators a breeze
  • Hi-res audio certified


  • Frequency response: 10Hz-40kHz
  • Driver: balanced armature x 6
  • Impedance: 18Ω@1kHz
  • Sensitivity: 11dB (1kHz@1mW)
  • Max input power: 100mW
  • Cable: High-purity silver-plated monocrystalline copper wire
  • Cable length: 47” (120cm)
  • Single unit weight: 0.29oz (8.4g)

What’s included

  • FiiO FA7s IEMs
  • Balanced ear tips (small, medium, and large)
  • Bass ear tips (small, medium, and large)
  • Vocals ear tips (small, medium, and large)
  • Foam ear tips (medium)
  • Dual-flange ear tips (medium)
  • Cleaning brush
  • Waterproof carrying case
  • Stainless steel MMCX removal tool
  • User manual 
  • Magnetic cable clip
  • Silver-plated monocrystalline copper cable
  • Swappable audio plug set (2.5mm, 3.5mm, 4.4mm)

What pairs well

Apos Promise

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