• Outstanding balanced and powerful sound quality with brilliant treble and deep bass reproduction
• Tesla technology with highest efficiency
• Excellent ambient noise attenuation (closed design)
• Swivelling earcups 90°
• Convenient 3-button remote control and microphone for phone calls and media playback (Apple compatible)
• Incl. rugged nylon carrying case
• Incl. 1/4" jack adapter (6,35 mm)
• Incl. in-flight adapter
• Incl. adapter for non Apple compatible devices

Also available without smartphone remote - T 51 p

Included in delivery

Carrying case
Inflight adaptor
   ( "1/4 ) adaptor 6.35 mm
 

Compact Tesla sound

Like its sibling T 51 p, the focus for design of the T 51 i is delivering unrivaled sound quality. With new and improved drivers the headphones deliver in an inspiring way – right from the first moment. A particularly deep bass response and transparent, clear highs are apparent from the T 51 i due to the common properties that make all Tesla headphones so special: high efficiency and low distortion. The result: a clear, powerful sound across the entire frequency range, even at low levels. The closed design of the T 51 p also isolates external noise very effectively.
Further information about Tesla Technology

Completely re-engineered transducers (drivers) based on a neodymium ring magnet with optimized magnetic field characteristics. This combination creates a magnetic field inside the transducer which is far stronger (> 1,2 Tesla - measuring unit for magnetic flux density - with current headphones the strength of the magnetic field is < 0,65 Tesla) than in standard headphones. Because of this increased magnetic field, the voice coil is more compact but still provides a very high degree of efficiency. The membrane, consisting of a 3 layer "compound foil", delivers an extremely precise frequency response and guarantees, in collaboration with the strong magnet, a transparent and distortion free sound.

Works on your iPhone and other mobile devices

Being an officially licenced product, you can be sure, that the T 51 i works smoothly on your iPod, iPhone or iPad. With the three-button remote and mic, you can use your T 51 i to control calls and media playback. All functions (except the volume up and down) work on other current smartphones and tablet computers as well, including Windows and Android devices.

High quality and elegant looks

The shiny beyerdynamic logo on the housing caps stands in sharp contrast with the brushed metal surfaces of the ear-cups. The cable has also been improved to be more stable and has a satin finish which results in less cable noise. A light champagne tone lends the headphones a very elegant appearance and raises the T 51 p above the plastic monotony of most – even more expensive – headphones with its all-metal construction.

Perfect to wear

With its metal fully-adjustable headband and swiveling earcups the T 51 i fits perfectly on your head and confirms beyerdynamic’s long-established reputation for producing headphones  with excellent wearing comfort. The ear pads made of super-soft synthetic leather fit the contour of the outer ear thanks to its viscoelastic filling (a memory foam).

Practical, even when traveling

Thanks to the swiveling earcups the T 51 i folds up compactly and fits in the included rugged nylon carry case. A high-quality 6.35 mm adapter is included for listening on premium hi-fi equipment or headphone amplifiers, an airplane adapter is also included so you can enjoy a superior experience of in-flight entertainment.

www.whathifi.com 10/2014
Titel: Beyerdynamic T 51i

reviews
[...]

"They’re easily some of the best portable on-ear headphones we’ve heard at this price."

[...]

"The Beyerdynamic T51i in-ears give an incredibly insightful performance, revealing the textures of instruments and nuances in vocals. Each frequency is beautifully judged. There’s remarkable clarity and bite at the top, but it’s smooth enough to avoid hardness. The midrange is eloquent and poised. Bass notes are substantial but taut. In rhythmic terms, the T51is possess timing of regimented precision."

[...]

"They’re light, for starters. You wouldn’t expect that from a mostly metal body. And it’s sturdy metal too. These will take a lot of punishment and still come out singing. This lightness helps them sit comfortably on your head."

[...]

"We should mention the closed-back construction, which provides a few degrees of passive noise isolation. Along with the snug (but never squeezy) ear pads, this provides a neat way to segregate oneself from the outside world. The T51is are great for commutes."

[...]

"Verdict: Look no further if you have up to £250 for a pair of on-ear headphones. Beyerdynamic is stronger than ever, and now there’s a remote control. What more could you ask for?"

T 51 and Tesla Technology

Under the name of Tesla technology, beyerdynamic has bundled a range of features to improve the sound and increase the efficiency of the headphones. Put simply, the magnetic ‘drive’ of Tesla headphones provides double the performance of conventional models, which is an increase in efficiency

beyerdynamic is putting progress onto the road: all new T 51 (T 51 p and T 51 i) has been specially configured for the reproduction of sound from portable players, notebooks and other mobile devices when out and about. This is because the efficient Tesla converters do not just provide exquisitely precise and detail-rich sound: their degree of efficiency also compensates for the low performance of mobile players. With the T 51, devices that often sound too quiet are given a boost in performance that can only be compared with the spontaneous acceleration and overwhelming torque of an electric car

The construction details and appearance complement each other perfectly. Whereby other headphones with their plastic chassis give the appearance of a tuned car with spoilers, the T 51 p is an elegant listening machine. Its satin finish stainless steel and aluminium, together with parts made from high-quality plastic give it an exclusive appearance. Well thought-out details make mobile operation a real pleasure, starting with the tough nylon case and going on through the right angle plug that suits every iPhone to include many other features. The comfortable rotating ear casings rest on a spring steel headband that makes a reassuringly sound locking noise – just like the vehicle door of a German top-of-the-range saloon. You can be sure that loose gaps are not a feature of these exceptional “Handmade in Germany headphones

The full metal driver has particular acoustic benefits. Because of its solid casing, any vibration of adjacent components is reduced and it is not possible for resonances that distort the sound to be generated. At the same time, the metal shields the voice coil from electromagnetic fields like a Faraday cage. The special multi-level membrane contributes to the absorption of sound-disrupting break-up vibrations at their origin and the powerful magnet system assures high impulse fidelity in reproduction. The result is a more transparent and fresh sound, with powerful bass that is particularly enjoyable when out and about. The closed design of the headphones shields the wearer from excessive ambient noise and prevents the music from being heard from the outside