HeadphoneOverreview

Aune AR9000

The open-back with sub-bass to spare — everyone agrees on the low end, then argues about everything above it.

80/ 100
Review score
24 sourcesUpdated
$1,399Typical US price

Score aggregates reviewer opinions across topics.

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Aune AR9000

The short version

What to know.

Aune's open-back flagship, a 430 g dynamic that nearly every source describes the same way at the bottom: deep, controlled, speaker-like sub-bass that measures at Harman-level extension (about 7–10 dB more at 20 Hz than an HD 800 S on the same rigs) without an obvious shelf, plus a natural, slightly lively midrange around 1 kHz and a fit that most owners call exceptionally comfortable despite the weight. The tuning is coherent enough that its reviewer and many owners run it without EQ. Above the mids the consensus fractures along one measured feature — a recessed 2–5 kHz presence region beneath a 6–10 kHz lift: most hear it as relaxed and forgiving, a vocal minority hears vocals and strings pushed back and 'veiled', and a few hear the treble as crisp-to-bright and position-sensitive. The soundstage splits between 'holographic, speaker-like' and 'good but more intimate than an HD 800 S'; detail is rated anywhere from Utopia-class to a step below the planar flagships; and the build divides those who find it solid and premium from those who see a lot of plastic for $1,399. Owner ratings run high (4.7/5 from 19 at the US dealer), with the two lowest scores coming from listeners who returned it.

About this product

Open-back, over-ear dynamic — Aune's flagship, above the $299 AR5000 / AR5000 MK2 and the closed SR7000, with a 50 mm stacked-carbon-fibre driver rated for 4 mm of linear travel (43 Ω, 102 dB, ~430 g, $1,399 / €1,499). The production tuning differs from the 2025–26 show prototypes (Aune retuned it across roughly nine revisions; the show units were darker with a stronger 6 kHz peak), and the first launch batch was recalled by serial number for what Aune called a cosmetic issue. A cheaper AR3000 open-back was shown alongside it but was not yet on sale.

The AR9000 is the headphone Aune spent a year tuning in public: teased at Munich in 2025, reworked show after show, and finally released in July 2026 at $1,399 as the flagship above the cult-favourite $299 AR5000. Its party trick is a 50 mm carbon-fibre dynamic driver with unusually long linear excursion, which lets an open-back reach into the sub-bass the way sealed cans and planars normally do.

It arrived to a wave of enthusiastic reviews and a 589-post owner thread — and then a second wave of owners asking whether the hype had run ahead of the product. There is broad agreement on the bass, the comfort and the coherence of the tuning, and genuine disagreement about its presence region, its soundstage, how premium it feels in the hand, and whether it earns its price. Plenty to average, and plenty to map.

A good fit for

  • Listeners who want real sub-bass slam from an open-back without EQ — electronic, hip-hop, film and gaming especially
  • People who found the HD 800 S bass-light and detached, or the Focal Clear / Elex too intense, and want the punch with a fuller, more forgiving balance
  • Long-session comfort seekers with larger ears who can live with ~430 g
  • Anyone who wants a no-EQ, no-drama daily driver that tolerates imperfect recordings
  • Gamers and film watchers who value bass depth and precise placement over the widest possible stage

Think twice if

  • Your reference is a brighter flagship (HE1000, Arya, Composer, Utopia) and you listen mostly to acoustic, jazz or classical — the relaxed presence region is the most common reason for returns
  • You chase the biggest, deepest soundstage — the HD 800 S still wins that, by its own reviewer's account
  • You expect $1,399 to buy a premium-feeling object — the chassis is largely plastic on the AR5000 platform
  • You are sensitive to weight or have a small head — 430 g and an unpadded headband have sent a few owners back
  • You listen off a phone or dongle only — most owners say it needs a desktop amp to come alive
  • You are treble-sensitive and cannot audition — a minority hears real 6–10 kHz energy, and seating changes it

The reviewer consensus

Agreement &
disagreement.

6 / 11topics divide opinion
imagingbasstonalitydynamicscomfortmidstreblesoundstagedetailbuildvalue
1 Strong agreement4 Mostly agree6 Divided opinions

Common ground7

  • Sub-bass extension and impact that open-back dynamics almost never deliver — Harman-level at 20 Hz on two rigs, 7–10 dB more than an HD 800 S — and it stays controlled rather than boomy.
  • A coherent, natural-sounding tuning that its reviewer and many owners run with no EQ; no source calls it shouty or sibilant when seated properly.
  • A slightly lively 1 kHz region that gives piano and vocals immediacy without harshness.

Points of contention8

  • Presence region: relaxed and forgiving to most; to a vocal minority the 2–5 kHz recess pushes vocals and strings back and reads as dark or 'veiled' on acoustic music.
  • Treble: clean and non-fatiguing on most heads, yet crisp-to-bright, unforgiving and position-sensitive on others — the 6–10 kHz fixture peaks land differently ear to ear.
  • Soundstage: holographic and speaker-like to some owners; good-but-intimate and shallower than an HD 800 S to its main reviewer and others.

A closer listen.

11 topics · 6 divided
Left: criticalRight: positiveTighter lines: more agreement

Bass

PositiveMostly agree
Reviewer sentiment17 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

The headline feature and the broadest agreement: sub-bass extension and impact that open-back dynamics do not normally deliver, controlled rather than boomy, and it takes an EQ boost cleanly. The spread is about quantity and expectations, not quality — neutral-bright listeners find it plentiful to slightly bloomy, while several owners warn it is 'not a bass cannon' and one returning owner called it good, not extraordinary.

“Its bass is the headline feature. Open-back headphones rarely deliver this combination of impact, control, and genuine sub-bass extension.”

headphones.com (Resolve)

“In the end I would call the bass good, not extraordinary.”

laserco — Head-Fi

“There is a reveiw online that seems to toy with the idea that these are bass canons, and in fact, they are not.”

FullBright1 — Head-Fi

Measured

Super* Review's KEMAR (three seatings per side, normalised at 500 Hz): +4.8 dB at 20 Hz — level with the Harman 2015 curve on the same rig and 7.5 dB above an HD 800 S, 12.6 dB above an HD 600 — sloping gently through the mid-bass (+1.6 dB at 100 Hz) rather than stepping up as a shelf. aden's clone rig reads the same relationships (+9.6 dB vs HD 800 S, +11.1 dB vs HD 600 at 20 Hz). Aune rates the driver for 4 mm of linear travel.

Link to this topic

Follow the evidence

Sources 24

1–6 of 24 sources

Read with context

Limitations & method.

As of

What to keep in mind 7

  1. A read of where the reviews land as of late September 2026, eight weeks after launch — the long-form outlets that usually bench a flagship (Headfonics, Headfonia, TechPowerUp, ASR) had not published yet, so the editorial voice is thin and the fullest written reviews come from owners.

  2. The main in-depth review is published by the only US dealer, and two of the most-watched video reviews are sponsored by that dealer or by another Aune retailer; their scores were weighted down accordingly, but keep it in mind.

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