FiiO M15From real comments

Verdict distilled from 22 mentions across 11 aspects in comments under product review videos.

Positive sentiment47%
PROS 47%
CONS 53%

Rank based on 22 mentions across 11 aspects

View the verdict as

Buy this if...

  • You own demanding high-end headphones that need serious driving power
  • You want a device that doubles as a portable player and USB DAC/desktop unit
  • You value long-term durability and don't mind investing heavily once

What users love

Skip this if...

  • You mainly listen through IEMs where the extra power isn't needed
  • You want modern Android with Play Store access and dual SD card slots
  • You're price-sensitive and could get similar results from a cheaper DAP like the M11

What users complain about

Compare in seconds

Based on user comments

Best choiceYou are here
1Premium
FiiO M15
Useful 'delete currently playing song' featurePowerful driving power for demanding headphonesPremium packaging and build detailsHigh price relative to value for many usersSingle MicroSD slot limits storage flexibilityDiminishing returns versus cheaper alternatives
FiiO M15
Useful 'delete currently playing song' feature
Powerful driving power for demanding headphones
Premium packaging and build details
High price relative to value for many users
Single MicroSD slot limits storage flexibility
Diminishing returns versus cheaper alternatives
Best value
2Mid
FiiO M21
Cassette case designMusical, warm sound signatureDesktop mode with battery bypassCrackling/popping between tracksButton/port layout debateWeak or fiddly EQ
FiiO M21
Cassette case design
Musical, warm sound signature
Desktop mode with battery bypass
Crackling/popping between tracks
Button/port layout debate
Weak or fiddly EQ
3Mid
Cambridge Audio CXN v2
Detailed, high-quality soundBroad connectivity and service supportPairs well with Cambridge Audio ecosystemTreble can sound bright or harshApp usability issuesBluetooth and Chromecast reliability problems
Cambridge Audio CXN v2
Detailed, high-quality sound
Broad connectivity and service support
Pairs well with Cambridge Audio ecosystem
Treble can sound bright or harsh
App usability issues
Bluetooth and Chromecast reliability problems
4Premium
FiiO R9
Dynamic, lifelike soundAttractive, understated designImprovement over the R7High priceMissing features some wantedBuggy app and Bluetooth
FiiO R9
Dynamic, lifelike sound
Attractive, understated design
Improvement over the R7
High price
Missing features some wanted
Buggy app and Bluetooth
5Mid
Marantz NA6006
Positive purchase confidence from reviewsAnalogue-like sound signatureWorks well as a preamp with separate ampsUnanswered compatibility questionsFiddly menus and login entryFile format playback errors
Marantz NA6006
Positive purchase confidence from reviews
Analogue-like sound signature
Works well as a preamp with separate amps
Unanswered compatibility questions
Fiddly menus and login entry
File format playback errors
6Premium
Cambridge Audio Azur 851N
Excellent sound qualityFlexible digital connectivityWorks well as preamp with external power ampsUnclear Roon and DSD supportNo HDMI ARC inputNo headphone output
Cambridge Audio Azur 851N
Excellent sound quality
Flexible digital connectivity
Works well as preamp with external power amps
Unclear Roon and DSD support
No HDMI ARC input
No headphone output
7Mid
Onkyo NS-6170
Strong Sound QualityHi-Res and MQA PlaybackBroad Storage Format SupportConfusing Streaming App SetupSlightly Muted Treble vs CDThinner Sound Compared to CD Player
Onkyo NS-6170
Strong Sound Quality
Hi-Res and MQA Playback
Broad Storage Format Support
Confusing Streaming App Setup
Slightly Muted Treble vs CD
Thinner Sound Compared to CD Player
8
Cambridge Audio Minx Xi
Flexible Subwoofer IntegrationVersatile Digital ConnectivityInternet Connectivity Failures
Cambridge Audio Minx Xi
Flexible Subwoofer Integration
Versatile Digital Connectivity
Internet Connectivity Failures
9Premium
Sony NW-A105
Excellent sound qualityPhysical buttons and dedicated music focusPremium build and designPoor battery lifeBluetooth and headphone driving limitationsHigh price for the value
Sony NW-A105
Excellent sound quality
Physical buttons and dedicated music focus
Premium build and design
Poor battery life
Bluetooth and headphone driving limitations
High price for the value
10Premium
FiiO M23
Exceptional sound qualityPowerful desktop mode & transport useBuild quality and design touchesBuggy, laggy softwareBattery life and battery quality concernsTrack playback glitches
FiiO M23
Exceptional sound quality
Powerful desktop mode & transport use
Build quality and design touches
Buggy, laggy software
Battery life and battery quality concerns
Track playback glitches

Who wins on what

Ranked by what users actually praise

Overall Impression

The M15 offers genuinely flagship-grade driving power and DAC quality. Commenters highlight that the M15's AK4499 DAC and amplification circuitry can drive demanding headphones with ease, something no smartphone can replicate. It's described as a legitimate high-end DAC and amp combined with fast storage and high-res playback, aimed squarely at people with power-hungry headphones rather than casual listeners wanting a simple portable player.

Software and storage choices feel like compromises for a device this expensive. Users note it runs Android 7 without the Play Store and an aging Exynos 7872 chip, limitations one M11 owner calls hard to accept at this price. The single MicroSD slot (down from two on earlier models) is explained by FiiO as necessary for storage-controller stability and voltage constraints, though some owners still wish for dual-card support with today's large card capacities.

Value is questioned against cheaper FiiO players and competitors. Several commenters argue the M15 only makes sense if you already own top-tier headphones, since IEM users see little benefit over the far cheaper M11 or M11 Pro. Some feel FiiO has shifted from affordable audiophile gear toward Astell&Kern-level pricing, while others counter that $1,300 is still modest compared to broader Hi-Fi component costs.

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