Compare DALI IO-12 Headphones vs Beyerdynamic Aventho 300 Wireless Headphones

ANC is broadly described as effective for reducing low rumbles and general ambient noise, but it is not considered class-leading compared with flagship Bose, Sony, or Apple models; some mention susceptibility to wind noise. Noise cancellation adjustability is limited to onboard mode switching in most coverage, with some sources noting multiple ANC modes, but no fine tuning via app.

ANC performance ranges from decent to underwhelming for the price; it tends to handle low-frequency rumble better than mid and high-frequency noise, and trails class leaders. ANC settings are flexible, with multiple strength levels (and an adaptive mode) available via the app and on-headphone controls.

Android use is generally smooth, with modern codecs and stable pairing frequently mentioned as benefits for Android users.

Multiple sources confirm there is no companion app for the IO-12.

The companion app is typically seen as clean and easy to navigate, though not feature-rich compared with the very best ecosystems.

Multiple reviews explicitly cite aptX options, including higher-tier variants such as aptX HD and aptX Adaptive, as part of the IO-12 wireless feature set.

aptX support (including Lossless/Adaptive) is repeatedly cited as a key advantage, especially for Android and Snapdragon Sound users.

Bass is typically described as tight and controlled in Hi-Fi mode with convincing weight, while Bass mode adds slam and warmth without turning into a boomy mess, though it can trade away some treble presence.

Bass is a defining trait: commonly thick and boosted with good extension, but several reviewers call it boomy or overdone until EQ is applied.

Battery life is commonly cited around 35 hours, with at least one real-world report closer to 30 hours; overall it is respectable but not exceptional relative to cheaper competitors.

Battery life is a headline strength: many cite around 50 hours with ANC on, and some tests report substantially higher real-world endurance.

Bluetooth connectivity is commonly reported as stable, with fast pairing and few to no dropouts even in busy environments.

Bluetooth stability is a strong point in most reviews, with few dropouts reported and Bluetooth 5.4 frequently highlighted.

Build quality is repeatedly described as ultra-premium, with strong materials and a luxury feel that holds up to travel use when handled with care.

Build quality is consistently highlighted, with metal components and a sturdy, low-creak feel that compares favorably to many all-plastic competitors.

Buttons are often praised for responsiveness and tactile feedback, but a few reviewers mention accidental activation, especially when adjusting volume or leaning against a seat while traveling.

Physical buttons get mixed feedback: some find them small, mushy, or hard to distinguish by feel, while others report they work fine once learned.

Cable quality feedback is mixed: some appreciate the included cables and finish, while at least one reviewer calls the cable frustrating to use and prefers the shorter option.

Accessories include both USB-C and 3.5mm cables (plus an adapter in several reviews) and are generally viewed as solid and practical.

The carry case is typically praised as premium and protective, with good structure and compartments, but it adds bulk and can be impractical for compact packing.

The carry case is frequently praised as premium and protective, and several reviewers like that a soft pouch or dust bag is also included.

Charging is described as taking roughly 1.5 to 2 hours from flat with no fast-charge boost mentioned, and one reviewer notes behavior consistent with limiting charge to protect long-term battery health.

Charging over USB-C is straightforward, with fast-charge claims around 10 minutes for roughly 5 hours and full-charge times around two hours.

Clamping force is usually described as secure but comfortable, ranging from light to moderately firm depending on the reviewer, without feeling unstable.

Clamping force often skews tight, which helps stability and seal but can become fatiguing for larger heads.

Codec support is positioned as strong for a premium wireless headphone, with repeated mentions of AAC and aptX-family options that help preserve detail over Bluetooth.

Codec support is a standout, commonly noted for including AAC plus higher-end options like aptX Lossless, aptX Adaptive, and LE Audio.

Long-session comfort is one of the most consistently praised aspects, with roomy earcups and plush pads that avoid pressure points for many listeners.

Long-session comfort is divisive: some find the fit pleasant, while others report discomfort after an hour or two due to clamp, heat, or ear clearance.

Design is widely described as premium and distinctive, but the dark chocolate color can divide opinion, and the large earcups create a bold, bulky look on some heads.

Design is generally seen as sleek and premium-looking, leaning understated rather than flashy; finish impressions vary from fingerprint-resistant to smudge-prone.

Detachable wired options add flexibility for travel, low-latency use, and compatibility with sources that cannot use Bluetooth.

Earcup and pad materials are frequently described as plush, premium leather with generous space for larger ears, contributing to both comfort and isolation.

Pads are described as plush by some and stiff or shallow by others; deeper cups help, but heat build-up and ear contact show up in multiple accounts.

Earcups are commonly described as able to swivel or lay flat, aiding seal and travel storage even though the overall design does not fold compactly.

Cup swivel and articulation are well regarded, allowing the headphones to lay flatter and fit a range of head shapes; a few note minor rocking from pad shape.

Without an app, EQ customization is not available beyond onboard preset modes, which limits personalization compared with mainstream flagship wireless headphones.

EQ options center on a 5-band equalizer and presets; many appreciate the control, but measurement-focused reviewers argue it is not granular enough to correct all issues.

Hi-Fi mode is commonly described as balanced and relatively uncolored, while Bass mode shifts the tonality warmer and can slightly reduce upper-mid and treble prominence.

Frequency balance is polarizing: some call it even-handed, while measurement-driven reviews point to large deviations (bass and treble boosts and a vocal region dip).

Headband adjustment is described as smooth and secure, holding its position well once set.

Adjustment mechanisms are generally praised for feeling secure and premium, including ratcheting steps that hold position well.

Hinges and joints are widely described as robust, with metal hardware that inspires confidence in long-term durability.

Included accessories are generally considered generous, with multiple cables and adapters plus a premium case, though some note the absence of a USB-C to USB-C cable.

Included accessories are strong for the price, often including a hard case, soft pouch or bag, USB-C cable, USB-A adapter, and a 3.5mm cable.

Instrument separation and imaging are consistently praised, with precise placement and clear spacing between layers even in complex mixes.

Imaging and separation are consistently strong, helping instruments stay distinct even when the overall frequency balance is debated.

Reviews that discuss loud listening report strong composure and minimal distortion at higher volumes, encouraging careful use because it stays clean as you turn it up.

Noise reduction for the mic is serviceable but not elite; wind and traffic can still be audible unless you speak up.

Call mic quality is usually fine in quiet conditions, but clarity drops in noisier streets or windy situations compared with the best phone-call headphones.

Midrange clarity is repeatedly highlighted as a standout strength, with clean layering and realistic vocal and instrument textures that feel unusually hi-fi for Bluetooth.

Midrange quality is mixed: some hear warm, impressive mids, while others report recessed vocals or slightly unnatural timbre depending on tracks and tuning.

Multi-device compatibility is a plus, spanning phones and computers and supported by both multipoint Bluetooth and wired inputs.

Multipoint is noted as supported and convenient for staying connected to two devices, though it is not heavily stress-tested across all sources.

Multipoint generally works reliably, but usability varies: some note the app does not show connected devices or make switching as effortless as certain rivals.

Passive noise isolation is described as strong thanks to large, well-sealing earcups and design details aimed at closing gaps around the ear, providing a solid foundation before ANC is even enabled.

Passive isolation benefits from a solid seal, but it does not fully replace top-tier ANC in louder environments.

Portability is a recurring compromise: the headphones are large, do not fold down compactly, and several reviewers mention the case is too big for many backpacks.

Most reviews describe foldability that fits the headphones into a protective case, though at least one comparison notes limited folding for ultra-compact packing.

Preset sound modes are generally seen as well-judged: Hi-Fi is the reference setting for balance and clarity, while Bass mode adds punch and warmth, sometimes with a tradeoff in treble and mid presence.

Preset profiles like Neutral or Smooth can be genuinely useful for dialing back bass or treble, though some report changes in perceived loudness when toggling EQ.

Replaceable earpads are explicitly mentioned as a welcome premium touch, with pads that can be removed for cleaning or replacement.

Replaceable earpads (and sometimes the headband) are called out as a longevity-friendly design choice.

Some coverage notes the absence of wear sensors and similar smart conveniences found on mainstream flagships, reinforcing the IO-12 focus on audio and simplicity over automation.

Wear-detection sensors support auto pause and resume; behavior can be a little too eager for some, but the feature set is generally appreciated.

Sidetone is available and adjustable, which can help calls for some users even if others prefer it turned off.

Smudge resistance depends on finish and handling: some report minimal fingerprints, while others notice visible marks with regular contact.

Day-to-day operation is described as straightforward because settings are handled on the headphones, but the lack of an app also means limited customization and some sources note manual firmware updating.

Setup is typically painless, with straightforward pairing and a simple app layout; firmware updates are reported as quick and uncomplicated.

Across reviews, sound quality is the headline: a speaker-like, highly resolving presentation that many call among the best in wireless closed-backs, with strong imaging and refinement. Wired sound is often described as equal or better in resolution than wireless, with USB-C and 3.5 mm options; passive use is supported, and some recommend listening powered on to benefit from onboard DSP.

Reviews disagree on the overall sound: many praise a warm, detailed, spacious presentation, while others criticize the stock tuning as overly colored and not reference-like. Wired listening via 3.5mm and USB-C is a valued feature; some reviewers prefer the USB-C wired mode for extra clarity and dynamics.

Most reviews describe an unusually open, spacious soundstage for a closed-back wireless headphone, with strong width and credible depth; one reviewer notes it is not stadium-wide but avoids feeling claustrophobic.

Soundstage is frequently described as wide and immersive, with an enveloping presentation; some report even better clarity and space when listening wired over USB-C.

Dolby Atmos and head tracking are a major feature: some find the effect subtle and well executed, while others dislike the tonal shift or report jumpy tracking behavior.

Fit stability is generally described as secure with a good seal, but the sizing and overall footprint may feel better suited to average-to-larger heads than very small ones.

Control surfaces are generally responsive; some coverage mentions touch-style control areas, but overall interaction is described as clicky and deliberate rather than finicky.

Touch controls are usually accurate and easy to learn, with occasional accidental triggers or misfires while moving or when handling the headphones.

Transparency mode is generally described as clear and practical for awareness, without strong criticism, though fewer reviews go deep on its nuance.

Transparency mode is adjustable and generally useful, though some find the highest setting overly sharp or bright in the upper frequencies.

Treble is generally airy, detailed, and smooth, with occasional notes that it can approach brightness on certain recordings; Bass mode can tame the top end if needed.

Treble is generally clear and energetic, but can bring sibilance or harshness for sensitive listeners; a few note slight top-end roll-off or prefer EQ to smooth it.

USB-C is highlighted as both a charging and playback option, with multiple sources noting USB audio support up to 24-bit and 96kHz.

USB-C is used for charging and, in several reviews, for wired audio playback, adding versatility beyond standard Bluetooth listening.

Voice assistant support is described as available via a press or long-press action, and some sources also mention voice prompts for battery status.

Volume output is commonly described as having plenty of headroom, with enough drive to get loud without feeling strained.

Volume headroom is ample, with multiple reviewers noting the headphones get very loud without obvious strain at typical listening levels.

Weight is noted as present but generally not burdensome once worn, though some acknowledge the overall heft and size compared to mainstream travel headphones.

At roughly 319g, weight is noticeable for some listeners and is part of the comfort complaints, though others still consider it manageable.