FiiO FH3 Review




For the nit-picker and nerdy one here, I’m giving the specs and technical sheets. For all the other, you can just go to the next page to see how the FiiO FH3 performs.

New improved drivers

Basically, not much has changed inside FiiO’s new IEM. Or so it seems.

You get three drivers in a 2+1 configuration. A setup made of two balanced Knowles drivers, to cover the highs and mids frequencies, and one dynamic driver taking charge of the lower end.

fiio fh3 headfonia review

More precisely, and to quote FiiO’s website:

  • High frequencies: the Knowles RAD-33518 provides clear sound and well-extended, yet smooth treble
  • Mid-frequencies: the ED-30262 gives sweeter and fuller vocals as well as a wider sound stage
  • Low-frequencies: a 10mm-beryllium-plated diaphragm dynamic driver provides explosive bass with shocking authority

Obviously, the main upgrade comes from the new dynamic driver, with a much potent diaphragm. On paper, this new beryllium-plated diaphragm is 4 times more rigid, 75% lighter, and is now as fast as 12km/s.

Honestly, those are impressive numbers, and I’m really curious to see how they will translate in real-life listening.

fiio fh3 stockshot headfonia

S-Turbo design + long tube

For better performances, the FiiO FH3 has been given the same S.Turbo acoustic design seen in the FH5 and FH7.

This turbine-inspired sound tubes gave astounding results in the previous models, so to no-one surprise, it’s also available on the FH3. This patented design filters unwanted high frequencies and allows the dynamic driver to deliver hard-hitting bass.

fiio fh3 stockshot headfonia

The whole tube measures 41.5mm long, so not as long as the whopping 80mm of the FiiO FA9, enough to allow the full bass to develop. On the other hand, the high-frequency driver was put as close as possible to the ear canal, to ensure low distortion levels.

In the middle of everything, you find a new physical+electronic three-way crossover, in charge of all that work. It gains some help from FiiO’s patented balanced pressure relief technology (basically two vents) and some tweaks in the internal acoustic structure.

The promise? “Smooth as silk frequency”. We’ll see later on that.

Sensitivity / Hiss 

Impedance is low, sensitivity is high – whatever the settings – so yes, you can drive those IEM’s with nearly anything, but it will shine only when hooked on a good DAC or DAP

There is some hiss with badly grounded sources, but that’s more than bearable. Once you’ve launched your music, all of that annoying buzz will immediately disappear. Hurray!

Full specs are below but the article continues on Page Four, after the click here

fiio fh3 headfonia review

Full specs

  • Type: IEM
  • Style: Hybrid configuration 2BA + 1DD
  • Drivers: 1x Knowles (High) – 1x Knowles (Mid) – 1x Knowles – Dynamic (Low)
  • Socket: MMCX
  • Cable: High-purity mono crystalline silver-plated copper
  • Shell: Magnesium-Aluminum Alloy
  • Frequency Response: 10Hz- 40kHz
  • Impedance: 24 ohms
  • Sensitivity: 114dB
  • Sound Isolation (up to): 30dB
  • Cable length: 120cm
  • Price: $149

The article continues on Page Four, after the click here

4/5 - (93 votes)

A nerdy guy with a passion for audio and gadgets, he likes to combine his DAC and his swiss knife. Even after more than 10 years of experience, Nanotechnos still collects all gear he gets, even his first MPMAN MP3 player. He likes spreadsheets, technical specs and all this amazing(ly boring) numbers. But most of all, he loves music: electro, classical, dubstep, Debussy : the daily playlist.


  • Reply September 8, 2020


    I’m not as enamored of its low frequencies as you are. I’ve used properly sealing Final E-Type silicones and Dekoni foams. The low end is lacking.

    I do think it has a very nice, bright, holographic and presence-filled presentation. It’s lively and engaging. As much as I like it, I won’t be selling or shelving my Etymotics any time soon.

  • Reply September 9, 2020


    Hi, if you don’t consider the price, will you preferred this FiiO FH3 over the Meze Rai Solo?

  • Reply September 14, 2020

    Ricardo Pinheiro

    Thanks for your review 🙂

    Can you compare the fh3 to the iBasso it01s? I have the it01s and would love to know if is worth to change to the fh3.

    Best regards

  • Reply October 23, 2020


    I Just bought my first Dac Fiio M6
    I just cant decide which IEM should I get. F9 Pro looks more confortable for a long time fit, But FH3 seens to have best construction and better sound. I do love trebles, and high vocals, but still love do keep the imaging. Which one should be my best options?

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