Astell&Kern AK240 – Expert Review

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Astell&Kern AK240 – Expert Review

Astell&Kern AK240 HIfiheadphones

Pros

  • Fashionable touchscreen operation
  • Very solid build quality
  • Large 256Gb internal memory
  • Audiophile grade sound
  • Very connectable
  • Charges by USB
  • Supplied with high quality leather case

Cons

  • Angular design looks better than it feels
  • Current maximum MicroSD accepted is 128Gb
  • Touchscreen response slower than smartphone equivalent
  • Player feels vulnerable if worn in pocket
  • Volume control feels a bit flimsy
  • Power up a bit slow

Verdict

A uniquely designed high-resolution player that is generally well made. Sound quality is is up there with the best digital audio players available and has plenty of connectivity options. Some may find the touchscreen a little old fashioned with a relatively slow response time.

Intro

Astell&Kern needs no introduction as a leading brand of high end portable players, and many fans of top-notch sound quality hold the players they produce in high esteem. So their flagship model, the AK240, has its work cut out!

Key Features

The AK240’s touchscreen encompasses a lot of possibilities and intuitive control features; for example it’s very simple to fast forward through a long track as the position marker can be dragged as fast as the user’s finger is moved. Also, changing volume can be done on the screen; but beware if you have sensitive IEM’s! Luckily there’s a dedicated volume control for those without steady hands.

Connectability is there in spades; the AK240 has a bluetooth capability so suitable wireless headphones can be used with it, any compromise with sound quality will have to be weighed up with the convenience that bluetooth headphones provide. Also Wi-Fi is featured so music can be sent streaming around the house, and files/folders can be read from and added wirelessly.

Also, the AK240 has an optical output which allows the user to send music data to an external DAC if preferred, and a balanced output for those who will accept no compromise where sound quality is concerned.

 

First Impressions

The Astell&Kern AK240 player looks like a piece of modern architecture at first glance; the screen is partly framed by two very angular bevelled edges which act like an optical illusion of some kind. This does lead to some problems gripping the AK240; care is needed when picking the player up off a flat surface as the right-hand side is relatively thin. The AK240 is supplied along with a high quality leather case, which will go some way to improving this.

Once safely in one hand, the user will likely need the other hand to operate the AK240 as the touchscreen control demands accurate direction by an attentive finger, also the touchscreen requires the user to see what is displayed in order to operate the unit. Volume can be altered by the dedicated control on the right side; this does feel a bit flimsy but offers no trouble during operation.

Once a track is playing, the cover art (if available) is displayed along with the usual artist/track information making a pleasing visual display, until of course the auto-hold feature renders the screen blank. A quick press of the power button brings the display and control capabilities back of course, and this feature can be configured as the user sees fit.

The AK240 does take a couple of minutes to read the contents of a freshly inserted Micro SD card before continuing, so if you’re chopping and changing with multiple cards don’t expect to be listening to your music immediately.

For the asking price, there are going to be some very demanding end-users with some very exacting requirements. We’re happy to say that the AK240 addresses these with aplomb. Any drawbacks mentioned are relatively minor and we mention these as we understand the stringent expectations prospective users may have at this high-end level and price point.

It would have been preferable to have a player which feels as good as it looks. Certainly the AK240 is visually striking but beauty is only skin deep. The attractive sheen may wear thin as the player is used on a day-to-day basis, due to the way it feels in the hand; there is an unyielding quality about it which may alienate some after a while.

Sound Quality

The Audiofly AF180 was used for the listening test, along with a Beyerdynamic T1 to test for available power.

Needless to say, the sound quality is stunning. But in order to gain a bit of perspective we put the AK240 up against a similar high-end player, the Lotoo PAW Gold. The general concensus is that the Astell&Kern AK240 reaches a bit lower and provides a little more ‘rumble’ in the bass department, while the Lotoo PAW Gold has a bit more up top making the tape hiss on Queen’s ‘Another One Bites The Dust’ a bit more apparent.

The feeling was that the AK240 gives a little more atmosphere and space; it’s a very natural and effortless sound. Acoustic and classical tracks are very immersive, with separation which is second to none in terms of portable players. Things seem a little more reined in and controlled when dealing with dynamically compressed pop music. These differences are very subtle of course, and are only mentioned to give the reader a more meaningful explanation of the player’s capabilities rather than those of the headphones used.

Power is plentiful too – the Beyerdynamic T1 was driven very well, the only time more headroom was required was with quieter classical passages with of course no dynamic compression applied within the production.

 

Summary

In terms of sound and functionality, it may come as no surprise that this is perhaps the best player available. The connectivity and versatility really make the Astell&Kern AK240 special; however not everybody likes a touchscreen and this may dampen the enthusiasm of some. Operating the unit may require it to be drawn out of the pocket, and any accidental swipes may lead to some frustrating moments.
Score 9.0

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DUNU DN-900 Earphone Review

Verdict

The DUNU DN-900 is a well built, hybrid in-ear headphone. The bass is punchy without overcrowding, with spacious mids and smooth highs – these earphones perfectly combine power and detail.

Pros

  • Frequency response can be fine tuned
  • Generous range of extras/accessories
  • Very clear bass and mid-range

Cons

  • High-frequency roll-off (if you like a brighter sound)
  • Case oversized for everyday use
  • Tuning rings easily lost if not careful
  • Cable can get tangled

As with all segments of the headphone market, the £100 – £200 bracket is hotly contested with innovation pushing sales as well as gimmicks. The hybrid drivers within the DUNU DN-900 are becoming commonplace among IEMs, but the tuning rings which are supplied with the DN-900 are not so commonly found. Given that we all have our pet sound signatures and preferred frequency responses, have DUNU released a self-adjustable gem?

Key Features

Perhaps most unusual about the DN-900 is the inclusion of the tuning rings; it’s always nice to have a bit of tweakability and it’s fun to experiment. However, be sure that you are changing the eartips and rings while sat at a table, or similar. The rings can jump off the nozzles and roll out of your life for ever if you aren’t careful. It would have been better to have a more ‘trouser clip’ style ring which stays on the nozzle.

First Impressions

Naturally enough, once out of the packaging, the first thing I noticed was the professional quality Pelican-style case. It’s a lovely item if bright yellow is your thing but it won’t fit in a pocket, nor is having your IEMs packed away in a bag or case the most practical place to have them. I would be utilising another case or pouch from somewhere else, while this case might lie unused in a drawer.

Sound Quality

The sound seems very mid-centric at first, with strong yet well shaped bass response. The most noticeable thing is the higher-frequency roll-off but this takes only a minute to get used to. I tried the rings in turn..

Silver gives a good bass grunt with midrange clear and even, and the higher frequencies rolled off. Blue appears bassier in the mid-bass area with a more pronouced and open midrange, while red is bassier again with some more low-bass creeping in and mellower mids. High frequencies are not affected by any of the rings but the blue’s effect on the midrange sits next to the highs better for me.

After trying the DN-900 with the Astell&Kern K120, I was very happy with the sound. Driving bass underpinned some very fluid and involving mids, with higher frequencies just managing to show their faces enough to keep the party atmosphere going.

The following impressions were gained using the blue rings and the AK120:

Frankie Goes to Hollywood – Two Tribes (Blank and Jones reconstruction)

The bass has good texture and impact going into the sub-bass slightly, mid range works well with male vocals and backing. Soundstage is good and wide with a great sense of space. Imaging is also good. The rolled-off highs did not give any problems.

Dub Syndicate – Mafia

Bass is very full and impactful with good slam. It is quite boomy on this track but dub calls for it! Midrange is still clear and separate – the piano parts are very distinct. Highs lend a touch to harmonics but otherwise linger in the background. Soundstage is as wide as the music requires, delay is headshaking.

Summary

The DUNU DN-900 is perfect for the tracks that were tried with them. They will satisfy any basshead but will not add bass which is not there and cloud things – midrange is spacious and lively. Again, the higher frequencies may be a problem for fans of this part of the frequency spectrum; but if like some you’re a little sensitive to it, the DN-900 should fit like a glove.

Score – 9/10

Astell and Kern AK120 Portable Digital Audio Player & DAC – Announcement

The HifiHeadphones team is pleased to announce the new Portable Digital Audio Player & DAC from Astell and Kern, the AK120 is now available to be purchased on our website.

The Astell and Kern AK120 plays any music format with high-fidelity Mastering Quality Sound (MQS). Lossless music files no longer need to be confined to big set-ups with this portable audio system. Feel the phenomenal realism of high-definition lossless music through 24bit/192kHz sound processing that cannot be heard through a standard CD.

The incorporated Wolfson WM8740 digital-to-analogue converter chip is the world’s best performing high resolution DAC chip. Equipped with two DAC chips the AK120 independently separates the left and right channels and offer true dual-monaural audio with wide soundstage and full-bodied audio. Astell&Kern AK120 can also be used as an external DAC via USB or Optical In function.

To playback 24bit/192kHz files, it is essential for the Astell&Kern to have high-capacity memory. Astell&Kern AK120 carries an on-board memory of 64GB with additional dual micro SD card slots supporting up to 64GB of memory in each slot , making the internal memory expandable to 192GB.

Intuitive and responsive, the touch screen interface combined with integrated hardware control buttons makes using the AK120 fast and easy. The user interface of the Astell&Kern focuses on quickly searching for and listening to songs. The curved design of the volume wheel guard provides additional protection to the volume wheel.

Features

  • Portable high-fidelity audio system with Mastering Quality Sound (MQS) playback
  • Up to 24bit/192kHz playback of high resolution audio files
  • Lossless playback for WAV, AIFF, FLAC, ALAC, APE, MP3, AAC, WMA, OGG and DSD music formats
  • Meets 100% of Hi-Fi audio specifications
  • Equipped two high-performance Wolfson WM8740 24bit 192kHz DACs in a dual-mono configuration
  • USB / Optical DAC function for PC and MAC
  • Dual Micro SD card slot supports up to 192GB of total memory
  • User Interface with intuitive touch screen and control buttons
  • Digital volume control wheel with traditional analogue feel
  • Volume wheel guard provides protection
  • Elegant design and sturdy build, housed in a brushed aluminium case

To purchase the unit, please visit our website:

Buy Astell&Kern AK120 Portable Digital Audio Player & DAC