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Austrian Audio · Hi-X55

Hi-X55

A 25-ohm folding closed-back dynamic headphone with proprietary 44 mm high-excursion drivers, detachable cable and replaceable memory-foam cushions
Market statusCurrent Austrian-made closed-back analytical monitorChecked Aug 20
Reference price$349 current U.S. authorized priceGuitar Center and other authorized U.S. dealers list the Hi-X55 at $349
Product cyclecurrentRelease history under review
EvidenceWell supported7 publishers · 3 independent
Next full checkAug 27, 2026Price checks run sooner
01

Ready to buy

Confirm the exact headphone, fit and source

The retained reference is $349 current U.S. authorized price. The over-ear Hi-X55 is retained; on-ear Hi-X50, open Hi-X65, cosmetic cover variants, cushion kits and discontinued retailer pages are separate. Confirm seal, clamp, channel match, leakage, clean drive, parts, warranty and return terms before payment.

02

Current market

The facts that change the ownership choice

Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.

QuestionCurrent answerFreshnessBasis

Current price

$349 current U.S. authorized price

The over-ear Hi-X55 is retained; on-ear Hi-X50, open Hi-X65, cosmetic cover variants, cushion kits and discontinued retailer pages are separate. Confirm authorized new stock, tax, shipping, promotion, included accessories and return terms at checkout.

Checked 3 days agoDirect source1 evidence item

Professional headphone branch

premium lightweight closed-back analytical production
Checked 3 days agoOur synthesis3 evidence items

Open, closed or semi-open design

Closed-back circumaural dynamic headphone with 44 mm high-excursion driver, folding metal load-bearing parts and approximately 305 g weight. It is the over-ear branch rather than the related on-ear Hi-X50.
Checked 3 days agoDirect source2 evidence items

Impedance, sensitivity and source drive

Austrian Audio specifies 25 ohms, 118 dB SPL/V sensitivity and 5 Hz to 28 kHz response. Low impedance eases voltage demand but can expose interface noise or weak current delivery.
Checked 3 days agoOur synthesis3 evidence items

Isolation, leakage and tracking boundary

Closed cups and slow-retention pads provide useful studio isolation only with a stable seal. Eyeglass arms, pad wear and hinge position alter leakage and bass.
Checked 3 days agoOur synthesis3 evidence items

Fit, clamp, glasses and pads

Memory-foam over-ear cushions and folding hinges support portable work, while clamp and a strong pad seal can create pressure for some heads. The complete cushion kit is a planned wear item.
Checked 3 days agoOur synthesis4 evidence items

Cable, cup connector and adapters

A detachable 3 m cable uses a locking 2.5 mm cup connector and ends in 3.5 mm with 6.3 mm adapter. Shorter cables are separate, and the lock limits generic replacements.
Checked 3 days agoDirect source2 evidence items

Pads, parts, warranty and repair

Austrian Audio retains the exact product, support and a $69 U.S. cushion replacement kit through authorized dealers. Confirm cable and driver repair availability because not every dealer stocks the headphone continuously.
Checked 3 days agoOur synthesis2 evidence items

Hearing-level boundary

Limit sound level and exposure duration and set cue and edit levels with a known reference. Strong isolation, high sensitivity, low impedance, maximum input power and amplifier headroom are capabilities, not safe listening instructions or hearing protection.
Checked 3 days agoOur synthesis3 evidence items

No sound, translation, comfort or reliability guarantee

A headphone, target curve, review, fixture measurement, pad, calibration profile, owner report, amplifier, warranty or service plan cannot guarantee neutral perception, mix translation, mastering accuracy, recording success, comfort, isolation, channel matching, reliability, hearing protection or another creative, commercial, health or safety result.
Checked 3 days agoOur synthesis4 evidence items

Current verdict

The metal-serviceable analytical closed reference

Hi-X55 is the defended analytical closed system when Austrian manufacture, metal load-bearing parts, low-impedance drive and supported cushion replacement outweigh a softer clamp, multiple included cables or open staging.

Checked 3 days agoOur synthesis9 evidence items
03

Other paths

The alternatives change what the Hi-X55 is worth

These are not generic competitors. Each one represents a different way to buy into the same market.

01lower upfront

Shure

SRH840A

$169 current U.S. price
Best fit
mid-price closed-back tracking and production
Tradeoff
Closed-back circumaural dynamic design with matched 40 mm neodymium drivers, collapsible yokes and padded headband. The A revision changes chassis and package from the original SRH840. Shure specifies 40 ohms, 97 dB/mW sensitivity and 5 Hz to 25 kHz response. Headphone-amplifier noise, current, output impedance and actual program level remain system checks. Closed cups reduce room sound and microphone bleed but are not specified hearing protection. Pad seal, glasses and headband adjustment govern low-frequency coupling and leakage.
Open the source
02premium

Neumann

NDH 20

$599 current U.S. hardware price
Best fit
premium high-isolation closed-back reference
Tradeoff
Closed-back circumaural 38 mm dynamic design with spring-steel and aluminum structure, folding cups, memory-foam pads and 390 g weight. Black finish is not treated as another system. Neumann specifies 150 ohms, 114 dB SPL at 1 V, below 0.1% THD at 100 dB SPL and 5 Hz to 30 kHz response. Neumann recommends an amplifier output impedance below 5 ohms and strong crosstalk damping. Neumann specifies more than 34 dB isolation above 4 kHz, not a broadband 34 dB guarantee. Pad seal, glasses and low-frequency room noise remain separate, and it is not hearing protection.
Open the source
04

What changed

The product has a history

Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.

  1. notable

    Current professional studio-headphone evidence retained

    Hi-X55 was checked against manufacturer identity, exact current U.S. price, specification or manual, U.S. support, independent measurements or professional editorial and bounded exact-model owner evidence.

Price record

The price history starts here

Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.

  1. $349 current U.S. authorized price

    Current reference priceA structured timeline will begin with the next source capture

05

Owner experience

What repeats after the purchase

Owner evidence is retained as a fit, pad, seal, leakage, cable, drive and service checklist for Hi-X55, not a sound, translation, comfort, defect or hearing-safety rate.

Reports are self-selected and span unlike heads, glasses, pads, listening levels, interfaces, amplifiers, rooms, production lots and service regions. They cannot establish population response, comfort, channel matching, reliability, mix translation, isolation or hearing safety.
SignalWhat owners reportOur readEvidence

strong seal, clamp, suction sensation, pad cost, 2.5 mm lock, upper-mid balance and dealer parts

Self-selected exact-model owners discuss fit, clamp, eyeglass seal, pad wear, tonal change, isolation, leakage, cable faults, driver matching, source drive and service. Reports span different heads, pads, units, levels and chains, so they define acceptance checks rather than population sound, translation, comfort or reliability rates.

Audition pressure and seal on the intended wearer before relying on light weight or metal construction as a comfort claim

1 evidence record
06

Sources

Why we believe the current view

The page separates what a source states directly from what we conclude across sources.

01
Hi-X55 current manufacturer identityAustrian Audio · identity

Austrian Audio identifies Hi-X55 as a 25-ohm folding closed-back dynamic headphone with proprietary 44 mm high-excursion drivers, detachable cable and replaceable memory-foam cushions.

Source type
manufacturer
Content hash
d2b190e0abffc8ce
Use
store excerpt
Open Austrian Audio
02
Hi-X55 exact current U.S. priceAuthorized U.S. retailer · price

Guitar Center and other authorized U.S. dealers list the Hi-X55 at $349. The over-ear Hi-X55 is retained; on-ear Hi-X50, open Hi-X65, cosmetic cover variants, cushion kits and discontinued retailer pages are separate

Source type
retailer
Content hash
683b4cc94c79376b
Use
store snapshot
Open Authorized U.S. retailer
03
Hi-X55 specification and manualAustrian Audio · specification

Closed-back circumaural dynamic headphone with 44 mm high-excursion driver, folding metal load-bearing parts and approximately 305 g weight. It is the over-ear branch rather than the related on-ear Hi-X50. Austrian Audio specifies 25 ohms, 118 dB SPL/V sensitivity and 5 Hz to 28 kHz response. Low impedance eases voltage demand but can expose interface noise or weak current delivery. A detachable 3 m cable uses a locking 2.5 mm cup connector and ends in 3.5 mm with 6.3 mm adapter. Shorter cables are separate, and the lock limits generic replacements.

Source type
support
Content hash
0034be8689d00743
Use
store excerpt
Open Austrian Audio
04
Hi-X55 U.S. support and serviceAustrian Audio · specification

Austrian Audio retains the exact product, support and a $69 U.S. cushion replacement kit through authorized dealers. Confirm cable and driver repair availability because not every dealer stocks the headphone continuously. Memory-foam over-ear cushions and folding hinges support portable work, while clamp and a strong pad seal can create pressure for some heads. The complete cushion kit is a planned wear item.

Source type
support
Content hash
88c0f13236426826
Use
store excerpt
Open Austrian Audio
05
Austrian Audio Hi-X55 independent reviewWhat Hi-Fi? · specification

Independent product-specific testing assesses analytical balance, construction and comfort. Reviewer impressions and one sample do not establish translation, seal or reliability rates.

Source type
editorial
Content hash
d5e27d4a2543e59c
Use
store excerpt
Open What Hi-Fi?
06
Hi-X55 bounded owner discussionsStudio-headphone owners · consensus

Self-selected exact-model owners discuss fit, clamp, eyeglass seal, pad wear, tonal change, isolation, leakage, cable faults, driver matching, source drive and service. Reports span different heads, pads, units, levels and chains, so they define acceptance checks rather than population sound, translation, comfort or reliability rates.

Source type
community
Content hash
b7c1221918846a6b
Use
store excerpt
Open Studio-headphone owners
07
Sound level and hearing-exposure boundaryNIOSH · specification

NIOSH explains that both sound level and exposure duration affect hearing risk. Headphone sensitivity, isolation, maximum input or amplifier headroom does not establish a safe level or duration.

Source type
editorial
Content hash
c64f748977bba8d8
Use
store excerpt
Open NIOSH
08
SRH840A defended alternativeShure · alternative

SRH840A is the mid-price closed-back tracking and production alternative at $169 current U.S. price.

Source type
manufacturer
Content hash
a3fdff867a2311a8
Use
store excerpt
Open Shure
09
NDH 20 defended alternativeNeumann · alternative

NDH 20 is the premium high-isolation closed-back reference alternative at $599 current U.S. hardware price.

Source type
manufacturer
Content hash
77b71066acc47b43
Use
store excerpt
Open Neumann

Manufacturer identity, exact current U.S. price, specification or manual, support path, independent measurements or professional editorial and bounded exact-model owner evidence were checked on August 20, 2026. This desk covers current U.S.-supported wired over-ear headphones used for recording, tracking, editing, mixing or mastering across open, closed and semi-open professional or reference branches. It excludes consumer Bluetooth-first and noise-cancelling models, gaming headsets, aviation headsets, in-ear monitors, bare drivers, cosmetic editions, discontinued or used-only models and marketplace-only unsupported products. Preserve exact acoustic principle, driver and generation, impedance and whether sensitivity is stated per volt or per milliwatt, amplifier output impedance, voltage and current, clean headroom, open-back leakage, closed-back isolation basis, eyeglass and jaw seal, headband pressure, weight, ear clearance, pad material and wear, pad-dependent voicing, left-right matching, cable length, cup connector and adapter, included case or alternate pads, replacement parts, warranty, service region and repair freight. Manufacturer frequency range, sensitivity, distortion and isolation claims remain tied to their published method. Independent fixture measurements are fit- and rig-dependent, while owner reports are self-selected. No specification, price, review, target curve, calibration profile, pad, headphone, amplifier, warranty or service plan guarantees neutral sound, mix translation, mastering accuracy, recording success, comfort, isolation, reliability, hearing protection or any creative, commercial, health or safety outcome. Limit sound level and exposure duration; high sensitivity, strong isolation or available amplifier power is not a safe listening-level instruction.

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