HeadphoneOverreview

AKG K371

Name: AKG K371
Brand: AKG

The budget closed-back that measures almost exactly like the Harman target — and the one whose owners keep writing about headbands, hinges and peeling pads.

45 sourcesUpdated 2026-10-04

$199Typical US price

Score aggregates reviewer opinions across topics.

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The short version

What to know.

A closed-back whose tuning is its strongest, best-documented trait: ten measurement rigs agree it sits close to the Harman over-ear target — an extended sub-bass shelf (13–20 dB more at 20 Hz than an HD 600 on the same rig), an even midrange and a dip around 3.8 kHz — and most reviewers hear it as natural and well balanced. It is very easy to drive, light, and broadly comfortable, though the pleather pads run warm and smaller ears fit better than large ones. Isolation is modest: it leaks little and blocks treble noise, but low-frequency rumble gets through. Opinion splits in several places. The treble reads smooth and relaxed to most but strident or peaky to a sizeable minority (most rigs show narrow 6–8 kHz peaks above the 3.8 kHz dip), and a few hear it as muffled. The soundstage is closed-in to most and decent-for-a-closed-back to the rest; detail reads clear to some and merely adequate to others. The biggest real-world divide is build: reviewers on fresh units call it solid, while owners across Amazon, Thomann, ASR, Head-Fi and Reddit report snapped headbands, loose sliders, hinge wiring that breaks, channels that drop out and pads that peel within one to three years — and AKG does not sell replacement pads. A tonal reference at a fair price, best bought from an authorized dealer and handled with care.

About this product

The wired, closed-back, over-ear studio monitor (50 mm titanium-coated driver, 32 Ω, 255 g, foldable, three detachable mini-XLR cables), tuned by Harman's research team to the Harman over-ear target and launched in mid-2019. Not the cheaper K361 that shares its chassis, and not the K371-BT Bluetooth version — whose failure reports are kept out of this read. Usually cross-shopped against the Beyerdynamic DT 770 Pro, Audio-Technica ATH-M50x and Sony MDR-7506.

AKG's K371 arrived in 2019 as a light, foldable closed-back studio monitor voiced to the Harman over-ear target — the curve Harman's listening studies found most people prefer. It is efficient enough to run from a phone, ships with three cables, and launched at $149, which put measured, near-reference tonality inside a first serious headphone budget. Authorized dealers now list it at $199.

That made it a default 'best closed-back under $200' pick and a measurement benchmark: rig after rig shows it tracking the target closely. The argument around it is less about the curve than about living with it — whether the top end reads smooth or strident, whether a sealed oval cup feels roomy or cramped, and whether the plastic headband, hinges and pleather pads survive a few years of use.

A good fit for

Anyone who wants Harman-accurate tonality from a closed-back without EQ — mixing checks, monitoring or accurate everyday listening
Phone and laptop listeners — it's extremely efficient and needs no amp
Listeners who like a deep, clean sub-bass and a smooth, sibilance-free top end
Glasses wearers and anyone after a light, foldable studio can with three cables in the box

Think twice if

You need a headphone that survives years of daily folding and travel — headbands, hinges and pads are the recurring failures, and AKG doesn't sell replacement pads (the DT 770 Pro is the usual durability pick)
You're sensitive to mid-treble peaks — a sizeable minority, including ASR and Resolve, hear it as a touch strident
You have large ears or want deep, cool pads — the openings are small and the pleather runs warm
You need real isolation for planes, trains or a noisy commute — low-frequency noise leaks in
You want a wide, out-of-head soundstage — most hear it as closed-in

The reviewer consensus

Agreement &
disagreement.

6 / 12topics divide opinion

6 Mostly agree6 Divided opinions

Common ground6

The tuning is the headline: ten measurement rigs and the labs agree it tracks the Harman over-ear target closely — an extended sub-bass shelf, an even midrange and a dip near 3.8 kHz.
The bass is a clean, sub-bass-focused shelf rather than a mid-bass thump, and most reviewers rate it among the best in a sub-$200 closed-back — provided the cups seal.
Very easy to drive (32 Ω, 114 dB SPL/V) — it runs fine from a phone, and an amp's output impedance barely changes it.
Light and comfortable for most heads, glasses included — though the pads run warm and the openings suit small and average ears best.
It leaks very little and blocks treble noise, but low-frequency rumble gets through.
Strong value at its long-time street price; authorized dealers now ask $199.

Points of contention6

Treble: 'smooth and fatigue-free, if short on air' vs 'a bit exaggerated, strident or rough in the mid-treble' (vs a few who hear it as muffled) — narrow peaks above a 3.8 kHz dip, heard differently with fit.
Build: 'solid, premium-feeling plastic for the money' vs 'headbands, sliders, hinges and pads fail within a few years' — fresh review units vs long-term owners.
Soundstage: 'closed-in and compact' vs 'fine, even surprisingly open, for a closed-back.'
Detail: 'clear and resolving for the price' vs 'tonally right but technically ordinary.'
Imaging: precise separation to most listeners, but measured channel mismatch on some units can skew the image.
Tonality: a benchmark to nearly everyone — but a small minority find it muffled, harsh or wildly track-dependent on their heads.

A closer listen.

12 topics · 6 divided

Left: criticalRight: positiveTighter lines: more agreement

Choose a topic

Tonality

PositiveDivided opinions

Reviewer sentiment34 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split, though very unevenly. Nearly nine in ten weighted sources — every lab among them — hear it as Harman-accurate, natural and well balanced, the trait that earned it 'benchmark' status. A small but persistent minority of owners and one well-known video reviewer find it uneven in practice: muffled and veiled to some ears, harsh on some recordings, or wonderful on one track and unlistenable on the next. Fit is the likeliest reason the same curve lands so differently.

Measured

oratory1990's GRAS measurement sits within about ±2.5 dB of the Harman over-ear 2018 target from 20 Hz to 3 kHz (+2.6 dB at 20 Hz, +2.2 dB at 200 Hz), then dips −4.9 dB at 3.8 kHz and −4 dB at 10 kHz. ASR called it the “closest we have gotten to the target”; RTINGS rates the bass “Emphasized (3 dB)”, the treble “Slightly Emphasized (1 dB)” and the signature “Warm”; SoundGuys says it “closely follows our headphone preference curve.” Eight rigs compared with an HD 600 on the same rig agree on the shape.

vs. listeners — The rigs agree on the curve, so the 'muffled' and 'harsh' reports aren't a different tuning. Sonarworks found the perceived response shifts with head position, and RTINGS that the fit is “prone to inconsistencies between wearers” — the seal and seating on a given head are the likeliest cause.

Where it splits

Harman-accurate and natural — about as close to the target as anything at the price, no EQ needed.89%

“It is all balanced to near perfection.”
Audio Science Review (amirm)

Uneven in practice — muffled to some ears, harsh or 'unlistenable' on some recordings to others.11%

“I would swear on my channel for several songs these are the most perfect headphones and then I would also swear on my channel that on certain other songs these are unlistenable headphones”
Z Reviews (video)

Link to this topic

Treble

Leans positiveDivided opinions

Reviewer sentiment24 supporting sources

CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split three ways. Most hear a smooth, even, non-fatiguing top end — no sibilance, though short on air and sparkle. A sizeable minority, including ASR, Resolve and listener, hear it the other way: a little exaggerated, strident or rough in the mid-treble, and painfully harsh to a few owners. A small group hears it as dull and muffled. The measurements explain much of it: a relaxed 3.8 kHz dip, then narrow resonances higher up whose level shifts with seating and coupler.

Measured

oratory1990: −4.9 dB at 3.8 kHz and −4 dB at 10 kHz against Harman. Relative to an HD 600 on the same rig, 6.5–8 kHz sits +1 to +7 dB higher on seven of eight rigs, but 2–3 dB lower on listener's B&K 5128. DIY-Audio-Heaven found narrow resonances at 5, 6.5, 10, 15 and 22 kHz and about 1 % distortion near 5 kHz; ASR pulled down a peak near 6.8 kHz; Chrono heard a narrow peak around 8.5 kHz.

vs. listeners — The dip below 5 kHz is why most hear 'smooth'; the narrow peaks above it line up with the 'strident' camp, and 3–5 kHz moves 2–3 dB with seating on the rigs, so the balance between the two shifts from head to head. The 'muffled' minority runs against every graph, so fit or seal is the likelier cause than tuning.

Where it splits

Smooth, even and fatigue-free — no sibilance, at the cost of some air and sparkle above 10 kHz.59%

“The Beyerdynamic are tuned with de-emphasized bass and an exaggerated treble, while the AKG offer more low-end and a more even treble.”
RTINGS.com

A touch bright, peaky or strident in the mid-treble — harsh on some recordings, painfully so for a few.36%

“First impression was a very good response albeit, with a tad too much bass and a bit of exaggerated highs and harshness.”
Audio Science Review (amirm)

Dull and muffled up top — short of high treble and clarity.6%

“They sound mediocre at best and make me feel like I’m listening through a wall its so muffled.”
UnknownPhotoGuy, r/headphones (owner)

Link to this topic

The hardware

Specifications.

Checked 2026-10-04

Design

Type: Closed-back over-ear
Drivers: 1 × 50 mm driver (titanium-coated diaphragm, pure OFC voice coil)

Electrical

Impedance: 32 Ω
Sensitivity: 114 dB/V≈ 99.1 dB/mW
Frequency response: 5 Hz – 40 kHz

Connection

Cable: Detachable, single-entry
Connector: 3-pin mini-XLRcommunity-sourced
Plugs supplied: 3.5 mm, 6.35 mm

Physical

Weight: 255 g
Released: 2019

Manufacturer-published figures, not measurements · from akg.com, akg.com, thomann.co.uk. Connector not published by the maker — community-sourced from hands-on reviews: diyaudioheaven.wordpress.com, audiosciencereview.com.

Follow the evidence

Sources 45

Read with context

Limitations & method.

As of 2026-10-04

What to keep in mind 6

This is a read of where opinion and measurements land as of October 2026; the budget closed-back field keeps moving, and the K371's own price has risen to $199 at authorized dealers.
Owner star ratings skew positive, and the averages here hide a long tail of durability complaints — the written low-star reviews are almost all about the headband, hinges or pads.
So much depends on fit: the bass, the sense of space, even whether it sounds 'muffled' or 'harsh' shift with how the oval cups seal on your head, your glasses and your ear size.
Measurement rigs and seatings read the treble a little differently, so the bright-vs-smooth question is worth checking with your own ears.
Many pairs last for years while others fail within months; buy from an authorized dealer so the warranty holds, and keep in mind AKG doesn't sell replacement pads (third-party ones change the sound a little).
The Bluetooth K371-BT and the cheaper K361 share the chassis but not every trait — reports about them aren't counted here.

Where to buy Product & retailer links

AKG K371 Amazon

As an Amazon Associate, we earn from qualifying purchases.

AKG K371

How the score adds up

What to know.

A good fit for

Think twice if

Agreement &
disagreement.

Common ground6

Points of contention6

A closer listen.

Tonality

Measured

Bass

Measured

Mids

Measured

Treble

Measured

Soundstage

Imaging

Measured

Detail

Measured

Dynamics

Measured

Comfort

Measured

Build

Measured

Isolation

Measured

Value

Measured

Specifications.

Design

Electrical

Connection

Physical

Sources 45

Limitations & method.

What to keep in mind 6