Compare Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones vs Sony 1000X The Collexion

Reviewers generally liked the sound, describing it as pleasing, energetic, balanced, or excellent, with the strongest praise for rock and instrument-driven listening.

The broad consensus is that sound is detailed, spacious, and more refined than the XM6, with excellent clarity and texture. Some reviewers found it less engaging or more genre-dependent than expected.

Passive isolation was praised for the soft cushions and seal, which helped block noise even before ANC was considered.

Passive isolation is only average because the comfort-focused seal is less tight. ANC compensates well at low frequencies but voices and higher sounds can pass through.

Wear detection performance was a weakness in one longer test because the sensor randomly triggered.

Wear detection is usually fast and seamless, though sensor placement can become inconsistent when the fit is imperfect.

ANC slightly affects audio performance, with one review noting higher sound-quality scores when ANC is disabled.

ANC processing can slightly reduce perceived audio quality and distortion performance, so critical listeners may prefer it off in quiet rooms.

Soundstage width drew mixed reactions, from solid or opened-up presentation to narrow, cluttered, or not true-spatial enough.

The soundstage is notably wide and airy for a closed-back wireless headphone, giving instruments room to breathe. Depth and intimacy are less convincing for some listeners.

ANC background noise performance was decent: one review measured strong overall noise reduction, and another said white noise was not bad.

ANC operates without the obvious hiss that can accompany some noise-cancelling headphones.

ANC was usually judged good, solid, or decent for daily use, but several reviewers said it still trails Bose, Sony, or the top tier.

Noise cancellation is consistently strong against engines, traffic, and office noise. It falls slightly behind the WH-1000XM6 because the softer fit creates a weaker passive seal.

Bass was usually described as punchy or well-balanced, though several reviewers said it could use more impact, cleaner control, or stronger low-end weight.

Most reviewers describe the bass as deep, clean, textured, and controlled rather than boomy. A few found its balance uneven or less punchy on complex tracks.

LE Audio readiness was treated as a positive future-proofing feature by multiple reviewers.

LE Audio and LC3 improve efficiency and prepare the headphones for newer Bluetooth broadcast and accessibility features.

Spatial audio was divisive: some liked the extra space, but others found it unnatural, underwhelming, or below true Atmos-style experiences.

Spatial and 360 Upmix modes divide opinion: Cinema can add scale and impact, while Music and Game often sound processed, tinny, or less natural.

Immersive audio quality was mixed, with some reviewers enjoying the added atmosphere and others finding the effect limited or not truly immersive.

The broad presentation feels natural and immersive without relying entirely on spatial processing, particularly with film scores and spacious recordings.

Microphone noise reduction was praised for handling simulated or real wind well, despite some vocal-clarity caveats elsewhere.

Voice-isolation processing rejects wind and background noise impressively, though aggressive suppression can slightly thin the voice.

Audio-video sync was a concern for gaming because one reviewer tied the lack of low-latency codecs to more noticeable latency.

The absence of USB-C audio removes a potentially lower-latency wired option, which is a drawback for video and gaming use.

ANC-off listening measured slightly better in one review, suggesting ANC can subtly affect the sound signature.

Sound becomes slightly cleaner and more open with ANC switched off, though the change is noticeable rather than dramatic.

Wind handling was mixed: one reviewer found wind susceptibility in ANC/transparency, while another found moderate wind manageable.

Wind noise is generally controlled well during calls and outdoor use, although strong headwinds can create a whistle around the metal linkages.

The default frequency response was judged broadly listener-friendly, especially for casual listeners.

Most listeners hear a refined, balanced tuning with clearer mids and less muddiness than the XM6. One detailed assessment found the response uneven across genres.

Earpad/body-borne noise was a notable negative for one reviewer, who heard footsteps and heartbeat-like sounds.

The hidden plastic beneath the earpads can sound and feel cheap when moved, weakening the otherwise premium impression.

Cable quality received praise in one review for the black cable with brass tips and premium-feeling presentation.

The basic-looking analog cable and missing charging cable feel stingy for headphones at this price.

Hi-res playback support was a weakness because reviewers repeatedly noted no hi-res Bluetooth audio support.

LDAC, wired lossless playback, and DSEE Ultimate can reveal more detail, especially with compressed or older recordings.

Included accessories received praise for the attractive red-velvet case and included cables.

The accessory bundle feels sparse for the price, with a cheap-looking analog cable and no USB-C charging cable in several markets.

LDAC was only discussed as an absent higher-quality codec, making it a codec-support weakness.

LDAC produces a noticeable lift in openness, vocal naturalness, and fine detail when used with a compatible source.

Portability and foldability were major strengths thanks to the compact folding design and small travel footprint.

The earcups rotate flat but do not fold, so the headphones and case take more bag space than the XM6.

The lack of a built-in 3.5mm analog jack was a repeated drawback, even though USB-C-to-3.5mm wired listening is possible.

The 3.5mm input is useful for wired lossless listening, although the headphones still need power for their internal processing.

Auto-play and wear detection worked but was slow to react in one test.

Wear detection reacts quickly, pausing as soon as an earcup is lifted and resuming smoothly when it is replaced.

Wear detection auto-pause was only moderately successful, working but reacting slowly.

Auto-pause triggers immediately when an earcup is lifted and resumes without noticeable delay.

The preset EQ experience was praised in one review, especially the bass boost setting for adding dynamic sound without excess bass.

The presets are mixed: Clear and Hard can be useful starting points, while Heavy can overemphasize bass.

USB-C was useful for charging and wired listening, but reviewers criticized the one-port limitation and need for power in wired use.

USB-C is limited to charging, with no digital audio playback. This is one of the most repeated and least defensible omissions at the price.

Connection stability was praised as stable and high-performance in one review.

Wireless stability is mostly dependable, but some tests reported brief reconnects, and the relaxed fit can shift during movement.

Integrated microphone feedback was mixed, with clear/crisp quiet-room results but criticism of vocal clarity or noisy-environment performance.

The integrated microphone array captures articulate voices and supports effective ANC and environmental processing.

Android compatibility was positive in one review that found the headphones sounded good on Android.

Android pairing is quick through Google Fast Pair, and Android users also gain straightforward access to LDAC and Sony’s full app controls.

Connectivity options were mixed: wired and wireless playback were useful, but the lack of a built-in 3.5mm jack and coiled cable hurt convenience.

Wireless, multipoint, analog, LE Audio, and app-based options make the headphones flexible in everyday use despite the missing USB-C audio path.

Features at launch were adequate but not standout, with one reviewer saying the standard feature set lacked a truly distinctive tool.

Useful standards such as Auracast are available immediately rather than being promised for a later firmware update.

Sensor performance was a concern because one reviewer reported random wear-sensor triggers.

The left-ear wear sensor can be sensitive to fit, occasionally causing inconsistent detection or ANC behavior.

Treble feedback was split between clear, impressive highs and complaints about sibilance, fatigue, or sharpness on some tracks.

Treble receives mixed reactions: many hear smooth, controlled, non-fatiguing highs, while one reviewer found sharp peaks, fatigue, and limited detail.

Midrange impressions were mixed: some praised vocals and instruments, while others heard under-emphasized mids, prominent high mids, or occasional clutter.

Vocals and midrange detail are generally clearer, more natural, and better separated than on the XM6. A minority found the tuning uneven on complex instrumental music.

Multi-platform compatibility was positive where tested on both iOS and Android.

The headphones preserve most features across Android, iOS, and other devices, avoiding the restrictions of Apple-focused competitors.

Replaceable earpads were praised as easy to remove or replace and useful for longevity.

Service-replaceable earpads make wear and hygiene easier to manage over a long ownership period.

Replaceable pads and headband parts were a repairability plus where described.

Replaceable pads and a serviceable battery improve longevity, although the headband itself is not clearly user-replaceable.

Streaming service integration was praised strongly for Spotify Tap, especially for starting playback without pulling out a phone.

Spotify Tap, YouTube Music Quick Access, and similar shortcuts make favorite services faster to launch from the headphones.

Sustainability and repairability were praised for replaceable parts and repair-minded design, with a caveat that batteries are not user-replaceable.

Replaceable earpads, a serviceable battery, and reinforced ports improve repairability and support longer ownership.

One reviewer found the headphones plenty loud, with comfortable listening volume well below maximum.

The headphones maintain clean, controlled sound at high output levels.

Ear cup padding was widely praised as extremely soft, plush, pillow-like, and important to comfort and sealing.

Deeper earcups and generous padding keep ears away from the internal hardware and materially improve long-session comfort.

Transparency mode was considered usable and sometimes natural, but reviewers also noted hiss, limited realism, or weaker performance than the best rivals.

Transparency mode sounds clear and useful for conversation and travel announcements, though it is not always as natural as Apple’s best implementation.

Overall recommendations were positive but caveated: reviewers liked the package, especially for travel and rock-focused listening, while noting ANC, codecs, and wired tradeoffs.

The headphones are easy to recommend to buyers who prioritize Sony’s most luxurious comfort and revealing sound over maximum battery life or value.

Travel friendliness was a major strength due to battery life, compact folding, wired flexibility, and protective case design.

Excellent comfort and ANC make these strong long-haul companions, but the non-folding design and larger case reduce packing convenience.

Premium feel was praised through richer materials, superior build impressions, and a luxurious presentation.

Hand-finished metal, soft faux leather, and refined detailing deliver a convincing luxury feel. Smudges and a few hidden plastic parts slightly undermine it.

Maximum-volume clarity was strong in the reviews that addressed it, with no audible or max-volume distortion reported.

The sound stays composed and clear at high listening levels rather than becoming congested.

Headband adjustability earned a small positive note for visible adjustment numbering.

The stepless metal adjustment mechanism moves smoothly and quietly while holding its position securely.

Headband comfort was praised for reducing top-of-head pressure through light weight and support-strap design.

The wider, thicker headband cushioning spreads pressure effectively and is a major reason the extra weight remains comfortable.

The carry case was usually praised as sturdy, compact, premium, or travel-friendly, though a few reviewers found it bulky or unnecessary.

The handled magnetic case is practical and protective, but opinions on its handbag-like shape and larger footprint are divided.

Aesthetics were distinctive and often praised, but some reviewers noted the retro Marshall look will not suit everyone.

The slimmer profile and restrained metal-and-faux-leather styling look expensive without being flashy.

Instrument separation was a consistent strength when mentioned, with reviewers noting solid layering, instrument placement, and separation across bass, mids, and highs.

Instrument separation is repeatedly praised, with vocals and individual parts occupying clear positions across the wide stage. Dense arrangements can expose some tuning limitations.

Ear cup rotation and swivel helped portability, though one reviewer found the twisting mechanism odd on the head.

The earcups rotate flat smoothly for storage, but the design does not fold inward.

Water and sweat resistance was a weakness because reviewers noted the headphones are not waterproof and should avoid rain or gym use.

There is no IP or water-resistance rating, so rain, workouts, and heavy sweat require caution.

Codec support was a clear weakness because reviewers noted no hi-res, lossless, or low-latency codec support.

AAC, SBC, LDAC, and LC3 provide an unusually complete codec selection, although aptX is absent.

Value was generally fair to good, especially on sale, but reviewers noted strong cheaper or better-performing rivals.

Reviewers agree the performance and materials are premium, but the $200 jump over the XM6 is hard to justify for most buyers. Value improves only for those who prioritize luxury and comfort.

Auracast support was treated as a positive future-facing feature, especially for Android and LE Audio readiness.

Auracast arrives alongside LC3 and Bluetooth 6.0, giving the headphones a modern, forward-looking wireless feature set.

Multipoint reliability was strong where tested, with seamless switching or extremely reliable two-device use.

Multipoint connectivity can handle two devices cleanly, and at least one long-form test reported flawless operation.

Charging was praised for fast top-ups, with reviewers citing up to 12 hours of playback from a short charge.

Emergency charging is useful, but the playback gained from a short top-up trails the quickest premium rivals.

Battery life had the strongest agreement: reviewers repeatedly described it as class-leading, incredible, extraordinary, or far ahead of competitors.

The roughly 24-hour ANC runtime is enough for flights and normal workdays, but it is below the 30-hour premium norm and a clear step back from the XM6.

Setup simplicity received praise from one reviewer who called pairing/setup easy.

Initial setup is manageable, but the depth of Sound Connect creates a learning curve and hides useful options several levels deep.

Advanced software features were considered solid and modern, but reviewers did not see them as uniquely class-leading.

Sony packs in one of the broadest software feature sets in the premium headphone class, with deep control over sound, ANC, shortcuts, and listening behavior.

The app was viewed positively for customization, controls, battery options, and a generally intuitive experience.

The Sound Connect app offers exceptional depth, but many settings sit inside nested menus and can take time to learn.

Smart listening features were mixed: adaptive volume, Spotify Tap, and battery preservation drew praise, while missing convenience features held the score down.

Quick Attention and adaptive listening controls are genuinely useful, especially for announcements and brief conversations without removing the headphones.

EQ customization was broadly useful and responsive, though one reviewer wanted more precision than the five-band setup provides.

The 10-band custom EQ provides unusually fine control and can correct personal tuning preferences. Some listeners found the app essential for getting their ideal sound.

Call microphone quality received strong praise from one reviewer, especially for windy phone calls.

Call quality is usually clear and dependable even outdoors, with strong background-noise control. A few reviewers still preferred earbuds or dedicated headsets for critical calls.

Bluetooth version support was tied to a stable, high-performance wireless connection in one review.

Bluetooth 6.0 is paired with a current, capable codec package and is viewed as an excellent connectivity foundation.

Voice prompts and feedback added personality through Marshall-style guitar sounds during power and pairing.

The spoken status feedback is simple and pleasant rather than intrusive.

Smart Pause performance was criticized for random triggering in one longer test.

Speak-to-Chat is convenient indoors but can mistake wind for speech and interrupt playback outdoors.

Button controls were a standout strength, with reviewers preferring the tactile joystick and physical buttons over touch controls.

Physical controls are easy to locate, while the touch interface responds quickly and avoids most accidental commands.

Bluetooth performance was praised in one review as stable and high-performance.

Bluetooth performance is generally strong and reliable, including demanding higher-quality listening modes.

Weight comfort was a major strength, with reviewers repeatedly calling the headphones light for the class and easy to wear.

The headphones are much heavier than the XM6, but the wider headband distributes that weight well. Most reviewers did not find them burdensome during long sessions.

Hinge durability was praised for being able to twist without showing signs of breaking.

The stainless-steel swivel joint feels more robust than a conventional folding hinge and should reduce hinge anxiety.

Clamping comfort was rated very highly, with reviewers reporting little to virtually zero pressure.

Clamping pressure is generally relaxed and comfortable, including with glasses. The softer hold can allow some movement for smaller heads.

Durability over time was viewed positively because reviewers described more durable, repairable construction and long-term toughness.

The metal frame and reinforced hinge design inspire more confidence than Sony’s older plastic mechanisms, though long-term faux-leather wear remains uncertain.

Comfort was one of the strongest consensus wins, with reviewers repeatedly praising all-day wear, soft fit, and low fatigue.

Long-session comfort is one of the clearest strengths, thanks to deeper earcups, plush cushions, and a wider headband. Fit can be less ideal for a small minority of users.

Build quality was generally strong and rugged, with praise for durability and materials, offset by one report of creaking.

Metal linkages, stainless-steel joints, and tactile outer materials create a substantially more premium build than Sony’s mainstream models. Some reviewers still noticed cheaper inner plastics.

Design and aesthetics were mostly praised for the distinctive Marshall look, premium detailing, and rugged styling, though taste varied.

Reviewers overwhelmingly praise the sleek, understated luxury design and polished metal details. The look is more fashion-oriented than the utilitarian XM6.

The analog input is processed internally and cannot be driven passively from an external amplifier, limiting traditional wired-audio flexibility.

aptX support was criticized as absent, especially for Android or lossless-codec users.

Connections and switching work smoothly across common devices, including Apple hardware, without locking the best everyday controls to one ecosystem.

The gaming-oriented preset can create odd spatial effects and is less consistently useful than the standard listening mode.

The softer clamp and plush padding remain secure without pressing glasses arms painfully into the head.

Nodding to answer and shaking to reject calls is a convenient hands-free control once enabled.

Overall satisfaction is high among reviewers who accept the price, with comfort, materials, and spacious sound outweighing the main compromises.

The textured faux leather picks up visible marks and stubborn smudges more readily than smooth plastic.

Touch controls are among the best-reviewed features, responding quickly to swipes, taps, and the palm-over-ear gesture.

Sony’s spatial modes can process Dolby Atmos content, but the experience lacks the precision and ecosystem integration of Apple’s head-tracked implementation.

The dedicated gaming upmix mode is one of the weakest features, with processed effects that can sound poor or unnatural.

Sound leakage was viewed positively in one review because the plush ear cups helped minimize leak.

Sustainability materials received a modest positive note for recycled plastic use.