AKG K551 Bewertung | 93 Daten im Vergleich

The AKG K551 is a lightweight, closed-back, over-ear headphone designed for portable use and home studio monitoring. It features a 50mm dynamic driver, an integrated inline microphone and remote control optimized for Apple devices, and a 1.2-meter fixed cable. Notable strengths include immense bass extension reaching down to 5Hz, decent noise isolation, low weight, and high efficiency (32Ω impedance), making it exceptionally easy to drive from portable sources without needing external amplification. On the downside, the review highlights weak upper mids and lower highs, paired with a noticeable treble peak that causes a sharp sound profile, particularly on distorted recordings. Distortion also spikes to audible levels around 4kHz, and there is a lingering resonance near 1.5kHz. Additionally, the manufacturer does not supply replacement ear pads, and the sister model, the AKG K550, is rated as having a superior overall sound out of the box. However, the reviewer notes that the K551's warmer tonal balance can be transformed into an exceptional performer with DIY modifications like soldering a low filter and adding felt discs.

The AKG K551 is characterized as a high-performance headphone with an exceptionally detailed, forward midrange that offers a wide soundstage, great spatial imaging, and superior detail extraction compared to similar models like the Sennheiser HD 598. While praised for its acoustic performance, the headphone presents a heavily colored sound signature rather than a neutral, analytical one. Significant drawbacks include the massive, "helmet-like" physical footprint, which makes the headphones impractical for portable use despite the included inline microphone. Due to this size, the reviewer concludes the K551 is restricted to home use rather than commuting.

The AKG K551 over-ear headphones are a high-end, Apple-focused model that balances strong physical comfort with major technical drawbacks. On the positive side, these headphones feature a modern, lightweight design with large 50mm drivers housed in comfortable aluminum, plastic, and leather ear cups. The ear cups conveniently rotate inward to lay flat for easier packing, and the inline three-button remote control functions flawlessly with iOS devices. However, the headphones suffer from significant usability and sonic performance issues. They do not include a carrying case or a 3.5mm adapter, and the cable features an excessively thick plug jacket that is incompatible with most Apple device cases. Most critically, the sonic performance is highly disappointing when paired with stock Apple products; the audio sounds metallic, bland, and entirely stripped of bass and warmth unless the volume is cranked up to 85–90%. The reviewer notes that while the headphones might perform better with an external amplification system, their high dependence on an external amp severely limits their appeal for mobile users.

The AKG K551, as reviewed by Digit, is a closed-back headphone featuring massive, comfortable earcups and a sturdy build designed for an exceptionally open, airy, and precise soundstage. The device provides an analytical, true-to-source audio experience that shines for purists, while its design includes a single-axis mechanism for laying flat. However, the review notes the headphones are far too bulky for comfortable portability despite the flat-folding design, and the flat tuning offers severely lacking sub-bass, which will likely disappoint listeners seeking a heavy low-end. The AKG K551 is thus best suited for stationary audiophile monitoring rather than casual, on-the-go listening.

The AKG K551 over-ear headphones are reviewed by Totally Dubbed as an exceptionally priced, high-value option (£150 at the time) that delivers a flat, analytical, and highly neutral sonic profile. The reviewer notes several core pros, including outstanding headphone build quality with a highly flexible headband, precise laser annotations on the ear cups, a lightweight and generally comfortable design, and a highly stylish aesthetic. On the audio front, the mids are rated as perfect, crisp, and reference-grade, while the closed-back design surprisingly yields a phenomenal, open-sounding soundstage with exceptional depth, imaging, and immersion for music and gaming alike. However, the headphones suffer from several design and audio cons. Sonically, the bass extension is weak and lacks punch, while the high frequencies feel slightly rolled off. Structurally, the cable is a significant drawback; it is thin, fixed entirely to the left ear cup, and features a bulky 3.5mm jack termination that may not fit phones with protective cases. Additionally, despite being marketed for portable use with an integrated in-line microphone, the controls completely lack Android compatibility (working only on iOS devices)....

The AKG K551 headphones are designed as a portable version of the K550 model, adding a 3.6-foot cable with a three-button inline remote for mobile use. On the positive side, they offer excellent, sturdy build quality and a highly comfortable fit featuring soft, padded earcups and a padded headband. Sonically, they deliver a well-balanced, open, and airy soundstage that lacks a "stuck inside my head" feel, making them exceptionally well-suited for acoustic, soul, and chamber music. Additionally, their closed-back design provides a helpful layer of passive noise reduction when properly adjusted. However, the headphones suffer from significant portability flaws, as their enormous, over-ear cups are bulky and carry what reviewers call an "obnoxious" aesthetics or high "douche factor" in public. They also fail to include a carrying case despite their mobile targeting. The most critical drawback is their sound signature; they feature a pronounced treble presence bump and lack a bass boost. Consequently, the slender bass response is easily drowned out by low-frequency rumble in environments like subways, which can cause rock and dance music to sound like a sibilant...

The Gear Diary review of the AKG K551 highlights these over-ear, closed-back headphones as a high-end audio solution optimized for Apple devices, praising their exceptional comfort and ability to be worn for extended periods. Sound quality is a major highlight, with the review noting they provide great audio for music, audiobooks, and television viewing on an iPad, along with a thick, strong, tangle-resistant cable featuring easy-to-use in-line controls and a microphone. Gear Diary However, the reviewer points out notable cons, primarily the lack of a detachable cable, which limits convenience and eliminates the possibility of a cheap replacement. Additionally, the fixed cable attaches exclusively to the left ear-cup, which the reviewer finds inconvenient when watching movies depending on where the media device is positioned, though the final assessment still concludes that AKG created a terrific pair of high-end headphones.

The AKG K551 over-ear, closed-back headphones are designed as a portable version of the award-winning K550 model, adding an inline remote, a shortened cable, and a carry pouch. What Hi-Fi? highly praises their sound quality, awarding them a five-star verdict for their expertly balanced, spacious, and highly detailed audio performance that spans comfortably across all musical genres. Their open-back style presentation within a closed design delivers an upfront and exciting listening experience backed by top-notch timing. Despite the sonic brilliance, the review highlights significant physical drawbacks regarding the headphones' intended portability. The primary cons are that they are remarkably big, do not fold down, and ultimately fail to convince as a truly portable pair of cans. However, if size is not a dealbreaker, the pros—namely their spacious sound, excellent balance, and superb detail retrieval—make these headphones an outstanding all-rounder choice.