Beyerdynamic T51i Review | 93 Data compared

The Beyerdynamic T51i is a solidly built, lightweight, and maturely designed portable on-ear headphone featuring rugged silvery metal frames and soft synthetic leather padding. Ideal for travel, it offers an exceptionally high level of passive noise isolation, keeping external ambient noise blocked out while minimizing sound leakage to an absolute bare minimum. The non-detachable, dual-entry cables include an Apple-certified three-button remote and microphone, and terminate in a slim 3.5mm right-angled plug designed to fit easily into most smartphone cases. Despite its functional design, the headphone has several drawbacks centered on physical comfort and specific sonic alterations. The on-ear configuration exerts a moderate clamping force that causes some top-down scalp pressure, and the synthetic leather ear pads can cause irritation or feel hot over time. Blindly adjusting the size of the headband is arduous without a mirror or taking them off. Users and reviewers note that the sound profile is engaging rather than strictly neutral, featuring an exaggerated, thick low-bass emphasis that can occasionally become overwhelming and distracting on bass-heavy tracks.

Beyerdynamic T51i The Beyerdynamic T51i on-ear headphones deliver an exceptionally detailed and well-balanced audio performance that justifies their £245 price tag. The expert review awards them a perfect five-star rating, praising their astonishing insight, precise rhythmic timing, and substantial yet taut bass response. Built from sturdy metal, they remain impressively lightweight and comfortable for daily commuting due to the soft memory foam and synthetic leather ear pads. Unlike their predecessors, this upgraded model adds a highly responsive three-button in-line microphone remote that is fully optimized for iOS devices and compatible with Android platforms. While the sound quality and build are essentially flawless for the price, the headphones do come with minor physical design trade-offs. The ear cups swivel flat for storage, but they lack a fully folding, clam-shaped frame for maximum portability. Visually, the headphones rely on a subtle, skeletal "industrial chic" brushed-metal appearance rather than a flashy, luxurious look. This straightforward design may lose in pure aesthetics when compared to rival products like the Sennheiser Momentum, but the T51i compensates by offering superior audio precision, great passive noise isolation,...

The review highlights three distinct Beyerdynamic headphones paired with the A2 Headphone Amplifier to evaluate their audio precision and build quality. Starting with the portable, on-ear T51i (S$529), it offers detailed, musical audio with clear instrument separation, forward mids for vocals, and zero sound leakage. However, it requires a high-quality source or amplifier to truly shine, struggles with cluttered audio at high volumes, and provides only adequate high-frequency noise isolation. In contrast, the studio-oriented, closed-back DT 1770 PRO (S$1,299) delivers a rugged build, an expansive soundstage, high-frequency transparency, and excellent high-volume performance with no distortion. Its main drawbacks are a high impedance of 250 ohms that demands dedicated amplification and a firm headband clamp that might feel tight.

The beyerdynamic T51i is a lightweight, durable pair of on-ear headphones crafted with aluminum, matte powder-coated finishes, and a brushed steel look on the earcups. Designed for mobile use and travel, they offer a comfortable fit with earcups that swivel up, down, and sideways, accompanied by incredibly soft black cushions. The headphones feature an in-line 3-button remote and microphone that delivers clear voice transmission during phone calls. Acoustically, they excel at delivering exceptionally crisp high- and mid-range frequencies, making them ideal for music enthusiasts who appreciate clear vocals, brass, and a highly detailed soundstage. Despite these strengths, the T51i has notable drawbacks. Their design lacks the ability to fold into themselves, making them bulkier to store than some competing mobile models. In terms of audio performance, the lower frequencies are soft and distant, lacking the punch and impact required for bass-heavy music genres. Additionally, the cable transmits a hollow, metallic noise when rubbed against clothing, meaning these headphones are best suited for stationary listening rather than active use. Ultimately earning a 7 out of 10 rating at a launch price...

The Beyerdynamic T51i is a premium on-ear headphone that masterfully blends an attractive, retro metal frame with modern comfort features like leather-wrapped memory foam ear pads. It stands out for its outstanding build quality, excellent sound isolation, and a warm, balanced audio performance featuring a thick yet controlled bass presence that suits genres ranging from Hip-Hop to Classical. Key pros include its compact design, superb sound quality, a soft shell carrying case, and a practical Y-shaped 3.5mm cable equipped with a slim right-angle plug and a seamless in-line remote/microphone optimized for Apple devices. However, the review highlights several notable cons, such as slight ear fatigue after wearing the headphones for a couple of hours or more. Additionally, the buttons on the in-line remote are indistinct to the touch, making it easy to accidentally pause a track when adjusting the volume until the user gets accustomed to their placement. The headphones are also limited by having only one available color pattern, and the 3.5mm audio cable is non-detachable, which is a drawback since the durable hardware will likely outlast the wire...

Tyll Hertsens' review for Stereophile highlights the Beyerdynamic T 51 i and T 51 p as durable, "steampunk" styled portable headphones with excellent comfort and low clamping force, though they suffer from a non-detachable, tangle-prone cable. Sonically, the headphones offer a smooth, warm, and musical sound that improves upon previous models, characterized by decent isolation for portable use, but suffer from loose, overwhelming bass and grainy treble that lacks detail. Technical measurements confirm a warm, midrange-tilted response and a 10kHz resonance causing treble issues, requiring precise positioning for optimal performance.

The German-made Beyerdynamic T51i is a premium, relatively lightweight ($300) on-ear headphone that earns high marks for its exceptionally robust bass, excellent detail retrieval, and warm audio profile. Structurally, it features a sturdy, eye-catching, mostly metal design with memory foam ear cushions that distribute pressure evenly, ensuring an ultra-comfortable fit during long listening sessions without causing ear fatigue. A core highlight is its integrated three-button inline remote and microphone optimized for Apple products, alongside flat-folding earcups and a high-quality protective travel case. Despite its stellar sound signature, the headphone has notable drawbacks, starting with its higher price tag and a non-detachable audio cable that prevents easy replacement. The inline remote's functionality is restricted, as it may not work fully with Android or Windows smartphones. Furthermore, its passive ambient noise isolation does not match the silence provided by dedicated noise-canceling alternatives. Finally, the rigid, cold metal headband lacks hinges and might sit uncomfortably close to the heads of individuals with larger head sizes.

The $299 Beyerdynamic T 51 i headphones, a high-fidelity, on-ear option, feature a lightweight design with memory foam earcups, enhanced by an Apple-optimized three-button inline remote and microphone. The audio performance is characterized by a balanced, rich sound signature, offering deep, controlled bass and bright, clear high-mids, complemented by a protective, flat-folding design. Key drawbacks noted include the hardwired, non-detachable cable, the high price point, and a neutral sound profile that may not satisfy fans of exaggerated bass.

The Beyerdynamic T51i is a lightweight, closed on-ear dynamic headphone that offers an open, forward, and surprisingly large soundstage with excellent, natural midrange performance that rivals more expensive models. Built with high-quality steel and plastic components, it features a split headband design and a high-efficiency Tesla driver that allows it to achieve very high volume levels even when running directly off portable smartphones. Key pros include detailed and crisp treble that remains free of harsh sibilance, flat bass extension down to 30Hz, relatively comfortable low-medium clamping force, and decent ambient noise isolation of 22dBA. However, the headphone suffers from several distinct drawbacks, most notably a boomy, emphasized lower bass and a narrow 7kHz ringing resonance that can become fatiguing over extended listening periods. The sound signature is highly sensitive to positioning, requiring a perfect physical seal on the ears to avoid severe sub-bass roll-off. Additionally, the thin, fixed dual-sided cable is noticeably microphonic when rubbing against clothing, the sound tends to "break up" and lose accuracy at higher listening levels, and its low linearity makes it a poor match for...

The Beyerdynamic T51i features a durable, lightweight spring steel design with swiveling earcups and memory foam pads that offer high comfort for long-term wear. Pros include excellent build quality and portability, though a notable con is the non-detachable, potentially fragile cable. The headphones deliver a warm, insightful sound with strong, controlled bass, detailed treble, and great passive noise isolation, despite a somewhat narrow soundstage. They are designed for portability, with a 3-button remote for iOS; however, the remote's functionality is limited on non-Apple devices.

The Medium review by Stefan Etienne praises the Beyerdynamic T51i as robust, lightweight on-ear headphones with premium build quality, featuring solid brushed metal, comfortable leather cushioning, and 90-degree articulating drivers. The audio performance is highly regarded, described as "pure butter" and suitable for both consuming and producing audio. Medium·Stefan EtienneHowever, a major drawback highlighted is the 4-foot-long cabling, which features two lines converging into a non-adjustable plastic piece, leading to frequent tangling. Despite this, the reviewer considers the T51i a fantastic, durable product with the cable issue being the primary flaw.

The Beyerdynamic T51i is a premium, closed-back, on-ear wired headphone retailing for $300 that delivers an exceptional, detailed audio profile aimed at audiophiles. Pros highlighted in the review include its simple, beautiful, and incredibly lightweight (174g) metal frame design, which ensures top-tier comfort despite minimal padding. Sound-wise, it excels with a deep, natural bass punch and a well-sculpted, warm midrange that avoids muddiness. Additionally, it upgrades its predecessor by including a useful three-button inline remote optimized for iOS, and it comes packaged with high-quality accessories, including a well-designed padded carrying case, a 6.3mm adapter, and an OMTP adapter. However, the review also notes several distinct cons. On the audio side, the high-end frequencies are the least well-tuned, lacking the ultra-high frequency response necessary to achieve absolute clarity. Physically, the cable is non-detachable, which is a drawback for a premium portable model. Because they are on-ear headphones, they also offer minimal passive isolation and lack any active noise cancellation features. Finally, at $300, they face stiff competition, with the reviewer explicitly noting that the slightly cheaper AKG N60NC headphones remain the...