Skip to content
HearWiki

FiiO FA9

66/ 100
Good
HearWiki score

Pricey for what it is

$500
typical price, USD
Still sold newupdated
Manufacturer pageBuy now onAmazon

At a glance

Brand
FiiO
Type
Wired IEMs
Fit
-
Connection
Wired
Noise cancelling
No
Released
2020

Score breakdowngood overall

Sound7.8
Value4.5

The FiiO FA9 is a 6-driver balanced armature in-ear monitor with a 4-way electronic crossover and 3 sound adjustment switches, featuring a DLP 3D-printed shell and an 80.6mm ultra-long sound tube. It delivers detailed, customizable sound across the full frequency range.

The HearWiki takeAI-condensed

The FiiO FA9 is a 2020 flagship in-ear monitor built around six balanced-armature drivers in a 3D-printed shell, offering a switchable tuning system for versatile sound signatures. It delivers deep bass extension and airy treble, with a lightweight design and easy drivability, though it lacks wireless features and active noise cancellation. This wired monitor is aimed at enthusiasts seeking a highly adjustable, source-friendly listening experience.

What works

  • Excellent build quality with 3D-printed shell
  • Multiple sound-tuning switches for personalization
  • Deep bass and airy treble for a balanced sound
  • Lightweight and easy to drive from most sources
  • Premium accessory package included

What doesn't

  • Fit may be uncomfortable for smaller ears
  • Tuning options can be overwhelming for some users
  • Instrument separation is only middling
  • No wireless or noise-cancelling features

Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.

Specifications

Audio - FiiO FA9
Driver6× balanced armature
Driver typebalanced-armature
Drivers per side6
Frequency response15 Hz - 40 kHz
Impedance16 Ω
Sensitivity110 dB/mW

What the reviews said

5 source(s) feeding this product's score.

earfidelity.wordpress.com

60

Ear Fidelity rates the FA9 as a capable flagship with strong build quality and interesting tuning hardware, but the numeric scores show it is not portrayed as class-leading in sound value. The review is mixed-to-positive, praising the engineering while keeping expectations grounded on sonic performance.

Read the full review

headfonics.com

78

Headfonics describes the FA9 as a 6-driver all-balanced-armature flagship with a switchable tuning system and relatively easy drivability. Their published score is modestly positive, suggesting strong technical design and flexibility but not top-tier performance in every area.

Read the full review

everydaylistening.net

Everyday Listening highlights the FA9’s strong bass extension, airy treble, tunability, and source-agnostic behavior in high-impedance mode. The overall verdict is positive, with the main caveats being fit for smaller ears, potentially overwhelming tuning options, and only middling separation.

Read the full review

headfonia.com

Headfonia’s review characterizes the FA9 as FiiO’s strongest IEM in its lineup at the time, emphasizing its flagship positioning, 3D-printed shell, Knowles BA drivers, and multiple sound-tuning options. The overall tone is strongly positive, with the reviewer presenting it as a highly accomplished and versatile monitor.

Read the full review

headphonesty.com

Headphonesty presents the FA9 as a well-specified, highly tunable 6-BA IEM with solid technical features and a premium accessory set. The review reads as favorable overall, with the product framed as a serious enthusiast monitor rather than a budget option.

Read the full review

What YouTube reviewers say

Video reviews we found, each condensed to its verdict. They do feed the HearWiki score, at a measured weight below what a published written review carries.

The consensus

Mixedacross 6 videos

Reviewers largely agree that the FiiO FA9 is a technically capable, well-built IEM with accurate mids and versatile tuning switches, though opinions split on its overall character: most praised its balanced, detailed sound and premium construction, while a couple found it boring or lacking bass impact and soundstage depth.

Reviewers liked

  • Accurate and detailed mids
  • Excellent build quality and accessories
  • Versatile tuning switches

Reviewers flagged

  • Bass lacks impact for some
  • Soundstage is average
  • Fit can be problematic for some users
16:29

FiiO FA9 _(Z Reviews)_ The Most Expensive Fiio IEM.

Z Reviews30.6K viewsAug 2020

The reviewer finds the FiiO FA9 to be a technically accurate and analytical IEM, but considers it boring and lacking the fun, engaging character of cheaper FiiO models like the FH7. He notes fit issues and concludes it's a safe, monitoring-oriented choice rather than an exciting one, suggesting it may suit someone looking for a neutral sound.

11:35

FiiO FA9 Review - $499 IEMs that Rival $3000 Headphones

Joe N Tell11.2K viewsAug 2020

The reviewer finds the FiiO FA9 to be an excellent, cohesive-sounding IEM that rivals much more expensive headphones, particularly praising its accurate mid-range and smooth vocals. He recommends it for enthusiasts seeking a reference-true sound, though he notes it's not for those wanting a fun, V-shaped signature. He also suggests an optional adapter to eliminate hiss from certain sources.

17:29

FiiO FA9 (6/BA) Earphones Review

Bad Guy Good Audio Reviews10.3K viewsMay 2020

The reviewer finds the FiiO FA9 to be a technically capable but sonically underwhelming earphone, particularly lacking in bass impact and soundstage depth. While mids are forward and clear, the overall tuning is polite and lacks the authenticity and power of the original recordings, making it a poor choice for bass lovers. The reviewer suggests FiiO needs better tuners and would not recommend this set at its price point.

9:02

My Favorite Earphones! [FiiO FA9 Review] 2020 Flagship 6-Balanced Armatures In-Ear-Monitors

Kay Dubz9.4K viewsJun 2020

The reviewer is highly impressed with the FiiO FA9, praising its balanced yet energetic sound, excellent build quality, and comfortable fit after a brief adjustment period. They find the tuning switches effective and prefer the off/off/on setting for clearer mids. Despite minor issues like ear pressure with silicone tips and an average soundstage, they consider the $500 price well worth it.

18:47

FiiO FA9 IEM Review

Soundnews7.2K viewsAug 2020

The reviewer finds the FiiO FA9 to be an impressive all-balanced-armature IEM with exceptional detail, natural mids, and a highly customizable sound via its three switches. While the stock tuning has a somewhat restrained sub-bass, disabling the bass limiter switch unlocks a more engaging and impactful performance, making it a strong contender even against hybrids. The impedance switch is praised as a practical solution for noisy sources.

27:05

FiiO FA9 earphones review

Porta.Fi6.9K viewsJul 2020

The reviewer finds the FiiO FA9 to be a well-built and feature-rich flagship balanced armature IEM with a natural, engaging sound signature. They appreciate the extensive accessory package, tuning switches, and technical bass performance, though they note the bass is not for bassheads and the tuning adjustments are subtle. Overall, they consider it a good value at $500, especially for those who prefer technicality over sheer quantity.

Summaries are AI condensations of each video's own conclusion, not transcripts. Titles, thumbnails and view counts belong to their channels.

Own these? Rate them.

A minute of your experience with the FiiO FA9 helps the next person shopping for them.

Alternatives in the $250–$1,000 range

Other wired iems models at a comparable price, ordered by HearWiki score.

More from FiiO

Other FiiO models in the database, same category first.

Where it sits in our rankings

The data-driven guides this model qualifies for.