Astell & Kern Kann is a hi-res audio player with aptX Bluetooth

Astell & Kern makes some of our favourite portable music players, so we're always excited when the company launches a new one.

Its latest, the Kann, is quite literally big news - with a depth of 25.6mm and weighing just under 300g, it's a hefty unit. It has a stylish design and ridged metallic back, and boasts enough features to qualify as an audiophile's dream.

The Kann has its own DAC and a built-in amp with a normal/high gain switch. A&K says this means it will drive even the most demanding headphones with ease.

It also boasts the lowest impedence of any of the firm's portable hi-res audio players. It supports PCM audio files up to 32-bit/384kHz, and DSD files up to DSD256 (11.2mHz).

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The Kann has plenty of connections too. As well as a USB Type-C port for faster charging and data transfers, and a microUSB, it has slots for both microSD cards up to 256GB and full-sized SD cards up to 512GB. And that's on top of the 64GB internal storage.

Bluetooth aptX comes as standard, for wirelessly beaming tunes to a speaker.

On top of all this sits a 6,200mAh battery - twice what you'd get in a high-end smartphone. That should translate to 14 hours of music listening before needing a recharge.

The Kann is available to pre-order now, priced £900. The Astro Silver model will be available late April/early May, followed by the Eos Blue in late May.

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Joe Svetlik

Joe has been writing about tech for 20 years, first on staff at T3 magazine, then in a freelance capacity for Stuff, The Sunday Times Travel Magazine (now defunct), Men's Health, GQ, The Mirror, Trusted Reviews, TechRadar and many more. His specialities include all things mobile, headphones and speakers that he can't justifying spending money on.