Best Portable Music Player: Six high-quality portable players

The price of the Astell Kern SP3000 puts the rest of portable players on this list to shame. At $3699 / £3799, this is one of the most expensive music players we’ve tested, but it meets the hype with its performance.

Like the other Astell and FiiO players on this list, the SP3000 takes the word portable in a loose sense but it’s a fine looking device. It’s less angular than other Astell Kern devices with outstanding build quality. Built from 904L stainless steel, it’s the same material Rolex uses for its watches, making this portable player resistant to corrosion. The front and back faces use glass, the front features a 5.4-inch 1080 x 1920 touchscreen.

Our reviewer found the touchscreen to be extremely responsive in use. Battery life is similar to the FiiO M17 at around ten hours, though the overall feature set is less comprehensive than the FiiO. There are fewer inputs and outputs, and while the built-in storage is bigger (256GB), the SP3000 can only expand to 1TB with the help of a microSD card.

MQA is supported as well as aptX and LDAC Bluetooth, with sample rates of up to DSD512 and 32-bit/784kHz supported as well. There are several DAC filters to play around with, the Crossfeed aims to create a soundstage that’s similar to listening to a pair of loudspeakers in a room.

When it comes to listening to music on the SP3000, the player gives music a consistently convincing and lifelike sound. While it performs best with bigger, high-res files, we found the Astell Kern to be no snob either, happy enough to take lower resolution content and make it sound better. It’s similarly easy-going partnering with headphone, but you’ll want to pair this music player with high quality headphones anyhow.

Detail levels are high, control over decay and attack of notes is well-judged, dynamism is well conveyed whether on a small or large scale and integration across the frequency range is superbly well-realised. Its sense of timing is about as good as you can get from a portable player. The price is ridiculous, but in terms of its performance, we found the Astell Kern SP3000 simply didn’t put a foot wrong.

Reviewer: Simon Lucas
Full Review: Astell & Kern A&Ultima SP3000

The Astell & Kern A&ultima SP2000T, like most A&K products, has a striking look with its asymmetric design and it feels premium too, although our reviewer felt it wasn’t too comfortable to hold. That’s down to the heft and bulk of the product, which for a portable music player is not the most desirable attribute.

But what the SP2000T lacks in portability, it makes up for in its feature set. As well as various headphone outputs with 3.5mm unbalanced jack alongside 2.5 and 4.4mm balanced outputs, the SP2000T has wide wireless connectivity in Bluetooth and Wi-Fi, with AAC, aptX HD and LDAC codecs, with file support that ranges from MP3 to DSD512 and four ESS ES9068AS DACs that can decode up to 32-bit/384kHz. Internal memory is 256GB, but can be expanded to 1TB via microSD cards.

The 5-inch FHD touchscreen paired with a Quad Core processor is one we found especially responsive, and while the total nine hours of runtime is decent, we did feel the charge time of 3 hours is a little leisurely.

As a tri-amp device, the SP2000T offers a choice in the presentation it offers with Astell’s standard OP AMP circuitry or the dual-triode KORG Nutube amplification for a lusher, warmer sound. To tweak the sound further, there are 5 hybrid positions to change things up.

Our reviewer found the SP2000T an engrossing listen, with extraordinary levels of detail within an expansive soundstage. The bottom end of the frequency range is weighty, solid and textured in description, with the top end dealing in extensive levels of detail, with as much bite and crunch to those treble notes as it can deliver. With that in mind you’ll want to find the headphone partner to avoid high frequency notes sounding too coarse and unforgiving.

Reviewer: Simon Lucas
Full Review: Astell & Kern A&Ultima SP2000T

Astell & Kern doesn’t have the portable player market all to itself. The Korean firm has competition, and the FiiO M17 is more than a match for it.

The M17 is big in everyway: from its build quality, price, specs and performance. Starting with the first point, while our reviewer found that the M17 could be held in one hand, it is a big and heavy portable player and the best means of transporting when you’re out and about is to stick in a bag (it also comes with a leather case to protect from scratches).

It has a 6-inch touchscreen with a 18:9 aspect ratio and 1080 x 2180p resolution, which makes for a crisp, clear display as well as a responsive touchscreen interface. It’s a generously specified device with an array of inputs and outputs that includes 3.5 and 4.4mm headphone outputs, an RCA socket that can function as an digital coaxial in or output and two USB-C inputs. The built-in storage is 64GB, but can be expanded to up to 2TB with a microSD card.

In terms of Bluetooth there’s aptX and LDAC support included for higher quality audio playback, although there’s no MQA support. The M17 can also function as an external DAC to boost music listening on another device, making for a versatile device.

And the sound the M17 outputted impressed us greatly over our time using it, never coming across as anything less than accomplished and delivering a thoroughly enjoyable performance. Used with capable headphones (and sources), the FiiO eloquently describes the midrange of tracks in Steve Wonder’s Innervisions album, offering sky-high detail, impressive dynamics, skilfully identifying transient sounds and bringing them to life.

With harder-hitting tracks it’s just as capable, producing a convincingly musical sense of tone and a fine sense of rhythm. It also delivers a neutral presentation for those that prefer to hear their music unaltered. There’s no disputing the FiiO M17 is expensive, but we feel it delivers a performance that warrants the price tag.

Reviewer: Simon Lucas
Full Review: FiiO M17

The Astell & Kern A&futura SE180 is one of the South Korean brand’s most advanced players thanks to its DAC switching modules that allows the user to remove the DAC inside and replace with it another.

It’s an innovative idea within the portable music player market, though we found the process of swapping DAC modules required some force. That’s an area Astell & Kern could make easier and swifter in future iterations.

The SE180 carries itself well, although like the SP2000T, its 280g isn’t exactly portable (the similarly-sized iPhone 13 is merely 173g by comparison). It is well-built, less asymmetric in look that Astell’s other players and features wonderfully tactile volume wheel that mimics a dial on a expensive watch. Headphone outputs are catered for by 3.5mm unbalanced and 2.5 and 4.4mm balanced, with a USB-C port for charging and microSD expansion that supports cards up to 1TB.

The Quad Core processor offers a snappy and responsive performance, the 5-inch colour screen offers some lovely looking colours, while we liked the Android-esque interface, which is intuitive to use and easy to grasp. File support extends MP3 to DSD256 and resolutions up to 384kHz, though by changing the DAC modules the file support can be extended further. With support for aptX HD and LDAC, the SE180 is covered on the wireless High-Res Audio front.

All of that Hi-Res support allows the SE180 to hit a high marker for sound quality. We tested the device with several headphones and found it brought a neutral and noise-free sound to whichever pair we used, featuring terrific amounts of clarity and detail. The soundstage is big and spacious, with the SE180’s sense of precision wringing as much out of music as it can. While it’s capable performer with lower-resolution files, this is a player that shines with higher bit-rates and resolutions, making this a true portable player for the audiophile listener.

Reviewer: Kob Monney
Full Review: Astell & Kern SE180

The A&ultima SR35 is the latest in Astell & Kern’s more affordable portable player line-up, though at £799 / $800, it’s more expensive than the SR25 and SR25 MkII, putting a slight dent in those ‘affordable’ credentials.

Still, you get a lot of features and performance packed into the SR35’s compact frame. As usual, it comes with an off-axis screen that does look odd but we adjusted to it in time. The touch screen goes up to 720p but is bright and colourful, while operation is simple enough with buttons on the side for power and playback, as well as the lovely tactile volume wheel. Certainly compared to the cheaper FiiO M11S, the SR35 feels like a premium product.

Its feature set mirrors that of other Astell & Kern players on this list with its wide array of support for audio formats up 32-bit/384kHz PCM and DSD256. Wi-Fi and Bluetooth support is accounted for, though we found with the former that it takes a while for the Wi-Fi connection to boot up when the player is powered on.

Built-in storage is 64GB, but the SR35 does support expandable storage up to 1TB with a microSD card. Battery life is rated at around 20 hours, but in our experience, the player has a habit of chewing through its battery life quicker than expected. There’s also a choice of Normal and High gain settings to match the impedance of the headphone it’s connected to.

In terms of its audio performance, the SR35 doesn’t show too heavy a hand in altering the sound of the headphone it’s partnered with. Unlike the SE180 model where you can hear the effect of the different DAC modules upon music, the SR35 takes the audio signal and gives it more polish and refinement while still keeping true to the headphone’s sonic signature. Compared to the FiiO M15S, it’s sharper across the frequency range, offers more insight, and is more dynamically expressive.

It’s the more assertive and exciting listen of the two similarly priced players. While the SR35 isn’t perfect in all areas, in our opinion, it’s the best portable music player you can buy in the £500 to £1000 range.

Reviewer: Kob Monney
Full Review: Astell & Kern SR35

Astell & Kern’s main rivals in recent years has been FiiO, who’ve tended to undercut their competitor’s offering and the M11S is a good example of it undercutting the SR35.

Like the M17, the M11S is a big , chunky player; much bigger than the SR35. In that context it does stretch the notion of being a ‘portable’ music player. This isn’t a player we’d recommend for those with small hands and fingers.

Build quality is good, and the player boasts a bright 5-inch IPS screen that’s easy to read, album artwork looks especially colourful on this screen. Used outside and it’s not bright enough to withstand the glare of sunlight, but we doubt many mobile devices would be free from reflections anyhow. The plastic protective case reduces the aesthetics, the M11S feels cheaper with it on.

For outputs there are 2.5mm, 3.5mm and 4.4mm ports for headphones, along with a USB-C port for either charging the device or connecting it to another source (say a laptop) and using it as a USB DAC to improve audio quality. Built-in storage is 32GB but expandable with a microSD card up to 2TB.

In terms of Bluetooth everything is covered from as low as SBC, to aptX, LDAC and LHDC audio (which is popular in Asia). Unlike the M17 there is support for MQA audio, and as this player supports the Android OS, there’s access to the Google Play Store, so you can download apps, music or otherwise, to this device.

The sound quality of the M11S is one we found to be convincingly neutral and balanced across the frequency range. There’s a sure hand guiding the bass, which is weighty and doesn’t dominate. The midrange is full of information and detail, spacious described with plenty of clarity. The top end of the frequency range isn’t the brightest, but treble is always relayed in the clear manner. The more expensive FiiO M15S is a clear step in sound if your budget can travel further

It’s not the most exciting portable music player we’ve ever heard, but easily improves upon the quality of the sources we use it with. If you find Astell & Kern’s offering a little too premium, the FiiO M11S is a less expensive alternative.

Reviewer: Kob Monney
Full Review: FiiO M11S