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Astell&Kern

Astell&Kern and Campfire Audio collaborate on the stunning AK Solaris X in-ear monitors

Astell&Kern, the global leader in premium portable high-resolution audio devices, has teamed up with Campfire Audio, a U.S. designer and manufacturer of premium hand-built earphones, to introduce the AK SOLARIS X in-ear monitor (IEM). Based on Campfire Audio’s Solaris 2020, this X model is designed and tuned especially for Astell&Kern, re-imagining the original’s sonics to faithfully convey a deep, rich but natural sound, synonymous with Astell&Kern.

Hand-assembled in Portland, Oregon, USA by skilled craftsmen, ensuring each individual earphone is manufactured to the highest quality standards, the AK SOLARIS X is a culmination of Campfire Audio’s acclaimed acoustic technology and design. Featuring a custom-made balance armature (BA) driver and a dynamic driver hybrid system, alongside a patented Tuned Acoustic Expansion Chamber (T.A.E.C.) technology and a 3D Printed Acoustic Chamber, the SOLARIS X delivers music as the artist intended and the perfect companion to Astell&Kern’s high resolution portable digital audio players.

Tuned Acoustic Expansion Chamber technology

The custom BA driver, designed specifically for the AK SOLARIS X, is smaller in size than its predecessor but still offers a wideband performance that extends high frequencies without sibilance or fatigue. Working in the tandem with Campfire Audio’s patented T.A.E.C. technology, that optimises the driver performance by adjusting the volume of space available in front of the driver and provides a direct passage from the driver to your ear, the new driver delivers unsurpassed clarity and a smooth, extended top end.

Polarity Tuned Chamber

Another BA driver provides rich delivery of the mid-range frequencies, while the custom 10mm dynamic driver is optimised for the Polarity Tuned Chamber. By deploying particular volume cavities, both in front and behind the dynamic driver, bigger sounds can be drawn from smaller drivers. In the case of this hybrid design it can also specifically target the AK SOLARIS X‘s driver performance with the result a deeper and more refined mid-to-low frequency.

3D-printed acoustic optimised construction

Campfire Audio’s high-end earphones are highly acclaimed by audiophiles around the globe, so it’s no wonder the attention to detail is key to delivering superior musical experience from the AK SOLARIS X. Each earphone integrates a 3D-printed, acoustically optimised interior chamber to enable the drivers to deliver the highest audio quality possible and create a natural and accurate sound.

4N Pure Silver Litz Cable design

The AK SOLARIS X comes with a balanced 2.5mm pure silver cable (a 3.5mm adapter is supplied) allowing the earphones to reach their full performance potential. The Pure Silver Litz Cable consist of four 4N (99.99% purity) conductors designed to provide the most transparent and extended sounds possible. The soft-touch jacket that wraps around each conductor ensures both flexibility and durability, while the beryllium/copper MMCX connectors are more resilient against wear and tear, compared to regular brass connectors.

Eco-friendly cork case

To support people with disabilities and allow them to live independently, Campfire Audio sourced a small boutique shop in Portugal, who work-side-by-side with people with physical disabilities, to hand make the AK SOLARIS X’s carry case. To keep these earphones in pristine condition while in transit, the protective case is made from eco-friendly cork material for long-lasting durability.

The Astell&Kern AK Solaris X is priced £1,499 / $1,500 / €1,799 and available in the UK exclusively in-store at Harrods and Selfridges from mid-July.

For more information visit www.astellkern.co.uk

Technical Specifications

Transducer Type:

Specially Customed New Single BA Driver + T.A.E.C. [High]

Single Updated Custom Balanced Armature Driver [Mid]

Specially Tuned 10mm Dynamic Driver [Mid + Low]

Frequency Response: 5Hz-20kHz

SPL: 94dB @ 1kHz: 9.16mVrms

Impedance: 8.1 Ohm @ 1kHz

Total Harmonic Distortion: Less than 1%

About Campfire Audio

Campfire Audio springs from a passionate focus on refined audio reproduction.  Each model in our earphone line is designed and assembled by hand in our Portland, Oregon workshop; our earphones are second to none in performance and finish. With a small team of highly skilled and dedicated craftspeople, we continuously experiment with materials and techniques to create something unique and special for the people who care most about it.

Visit: campfireaudio.com

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Categories
Astell&Kern

Astell&Kern’s AK USB-C Dual DAC Cable will transform the sonic performance from your mobile device

Astell&Kern, the global leader in premium portable high-resolution audio devices, introduces the AK USB-C Dual DAC Cable, enabling music fans to experience the best sound quality possible from a computer or mobile device, while on-the-move. Joining the company’s line-up of award-winning portable digital audio players (DAPs) and headphones, this ultra-compact audio accessory will transform the sonic performance from an Android smartphone, Windows 10 PC, tablet PC or MacOS computer*.

With leading smartphone manufacturers continually omitting headphones jacks and including low-performance DACs, and with popular streaming services offering high-resolution quality tracks, enjoying high-quality music playback on-the-go or on your desktop is becoming increasingly difficult. This is where the AK USB-C Dual DAC Cable becomes an essential audio accessory: Plug the dual DAC cable into the USB-C input on your device, connect a pair of 3.5mm headphones and immerse yourself in dynamic and detailed sounds.

DUAL DAC

At the heart of the Astell&Kern AK USB-C DUAL DAC Cable sit two Cirrus Logic CS43198 MasterHIFi™ DACs which support high-resolution audio playback up to native DSD256 and 32bit/384kHz. With years of expertise in audio circuit and amplifier design, the company was able create a complex and highly integrated circuit design to fit into a diminutive, chewing gum packet-sized (17mm x 50mm x 10.3mm) chassis. Elsewhere, Astell&Kern’s bespoke designed capacitors, that also feature in its range of high-performance DAPs, optimise the audio circuit to suppress power fluctuations and provide stable operation and best-in-class audio performance all from an ultra-portable housing.

The dual DACs are paired with an independent analog amplifier, designed to deliver a distortion free, live, warm and clear sound as the artist intended, while harbouring power to sufficiently drive a variety of high impedance headphones with a 2Vrms (Condition No Load) output level.

NOISE-SHIELDED CABLE

A custom-made, durable, 4-core cable is designed to withstand the vagaries of life on-the-go and to reduce signal interference for the cleanest audio possible. With Technora aramid fibre at its core to block external noise, thick silver-plated copper is wrapped around this centre strand, with a further layer of copper added in a spiral arrangement. The addition of copper wire helps to affect a clear and rich spatial sound, while separate shielding treatment is applied to the cable to block distortion and digital and analogue signal noise from the playback device.

PREMIUM DESIGN

As you would expect from an Astell&Kern the device, the AKUSB-C Dual DAC Cable boasts a stunning, angled surface design that follows the ‘light and shadow’ concept employed throughout all Astell&Kern products. The smooth, polished metal zinc alloy body offers a reassuring premium feel and bulletproof protection for life on-the-road.

The Astell&Kern AK USB-C Dual DAC Cable is priced £109 and will be available from April from www.astellkern.co.uk

* iOS-based devices, such as iPhones and iPads, are currently not supported. A dual DAC cable requires more current to run than a single DAC cable. Current iOS devices limit the amount of current exported and so don’t provide enough current to power a dual DAC configuration.

Technical Specifications

Body material: Zinc Alloy

Body colour: Titan

DAC: Cirrus Logic CS43198 x 2

Sample Rate:

  • PCM: Support up to 32bit/384kHz
  • DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo

Input: USB Type-C Input
(for Windows 10, Android Smartphone & Tablet PC, macOS)

Output: 3.5mm headphone

Dimensions:

  • USB Plug: 12mm[W] x 20mm[H] x 8.2mm[D]
  • 3.5mm Headphone: 17mm[W] x 50mm[H] x 10.3mm[D]

Weight: Approx. 25g 

Frequency response: ± 0.030 (Condition: 20 Hz~20 kHz)

S/N: 118dB @ 1kHz, Unbalanced

THD+N: 0.0004% @ 1kHz, Unbalanced

IMD SMPTE: 0.0003% 800Hz 10kHz (4:1) Unbalanced

Output impedance: 2ohm

Output power or voltage: 2Vrms (condition no load)

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