Astell & Kern and Campfire Audio collaborate to launch AK Solaris X earbuds

AK Solaris X
(Image credit: Astell & Kern/Campfire Audio)

Astell & Kern, famed for its five-star portable music players, has teamed up with Campfire Audio, a US manufacturer of premium earphones, to introduce the AK Solaris X in-ear monitor.

Based on Campfire Audio’s Solaris 2020, the new X model has been designed and tuned especially for Astell & Kern players.

Campfire Audio's high-end wired headphones are all hand-assembled in Portland, Oregon. The AK Solaris X is, the company says, a culmination of its acoustic technology and design. 

Each earpiece comprises a specially designed single balanced armature driver, with Campfire Audio's Tuned Acoustic Expansion Chamber (TAEC) tech for the high frequencies, a single updated custom balanced armature for the mids, and a specially-tuned 10mm dynamic driver for the mids and lows.

AK Solaris X

(Image credit: Atell & Kern/Campfire Audio)

That custom balanced armature driver within this hybrid system has been designed specifically for the AK Solaris X and is smaller in size than its predecessor.

The AK Solaris X comes with a balanced 2.5mm pure silver cable (a 3.5mm adapter is supplied). You also get beryllium/copper MMCX connectors, which promise more resilience against wear and tear compared to their regular brass counterparts.

Campfire Audio has also sourced the AK Solaris X's handmade cork case from a small boutique shop in Portugal that works side by side with people with physical disabilities.

The Astell & Kern AK Solaris X is priced £1499 / $1500 / AU$2199 / €1799. In the UK, it will be available exclusively in-store at Harrods and Selfridges from mid-July.

Astell & Kern Kann Alpha Urbanely Blue

(Image credit: Astell & Kern)

Looking to pair your new buds with the freshest music player in town? The five-star Astell & Kern Kann Alpha, previously available only in Onyx Black, is now arriving in a new Urbanely Blue colourway, alongside new support for the music management platform, Roon. It is available now from A&K, priced at £1099 / AU$1599.

MORE:

See our pick of the best portable music players: from budget MP3 to hi-res music players

Read all our Astell & kern reviews

Consult our selection of the best in-ear headphones 2021: budget to premium

Becky has been a full-time staff writer at What Hi-Fi? since March 2019. Prior to gaining her MA in Journalism in 2018, she freelanced as an arts critic alongside a 20-year career as a professional dancer and aerialist – any love of dance is of course tethered to a love of music. Becky has previously contributed to Stuff, FourFourTwo, This is Cabaret and The Stage. When not writing, she dances, spins in the air, drinks coffee, watches football or surfs in Cornwall with her other half – a football writer whose talent knows no bounds. 

Read more
Campfire Audio Clara
Campfire Audio and Nine Inch Nails' high-end IEMs want to bring you closer to sonic joy
Activo Volcano wired in-ear headphones
Activo's wired in-ear headphones aim for an explosive sound that won't break the bank
Technics EAH-AZ100 earbuds on table with coffee and book
Technics celebrates 60th anniversary with AZ100 flagship wireless earbuds
Noble Audio Knight IEMs on a black background
Noble Audio's eye-catching 'Knight' IEMs vow to bring royal sound quality to the masses
Beyerdynamic DT 770 Pro MKII on head shot
Beyerdynamic’s new in-ear monitors promise ultimate sonic precision for your music
A close-up of the FiiO FT7 headphones' earcups.
FiiO's FT7 flagship headphones take the fight to pricier rivals
Latest in Headphones
Sennheiser HD 505 open-back headphones
Sennheiser HD 505
The AirPods 4 and AirPods Pro 2 in their charging cases standing side by side on a wooden surface with a hand out flat behind them.
All three current in-ear AirPods are up to 32% off at Amazon – here's which pair you should buy
Beyerdynamic Aventho 300 wireless over-ear headphones
Beyerdynamic Aventho 300
T+A Solitaire T Cognac white in case
The 'benchmark setting' T+A Solitaire T wireless headphones have a boozy new look
Activo Volcano wired in-ear headphones
Activo's wired in-ear headphones aim for an explosive sound that won't break the bank
Getty Images, Thomas Winz
I love the idea of wi-fi headphones – but some big questions need answering
Latest in News
Cadillac dashboard showing an infotainment screen and Dolby Atmos music playing
Calling all in-car audio fans! Dolby Atmos with Amazon Music is rolling out to Cadillac’s entire 2026 electric vehicle line-up
HomePod OS
The rumoured Apple HomePod with display is reportedly put on ice while Siri gets its act together
LG C5 55-inch OLED TV
LG officially unveils US pricing for its G5 and C5 OLED TVs – and it's good news for fans of smaller screens
A Sony PS3 on a vertical stand with a white background.
Still using a PlayStation 3 to watch Blu-rays? Sony just saved your console with this crucial update
Bowers & Wilkins Zepellin
Bowers & Wilkins and McLaren are making new audio hardware with an F1 twist
Formula 1
US readers rejoice – F1's getting a key upgrade UK fans have enjoyed for ages