This is a Review of Astell & Kern AK120ii Digital Audio Player (DAP). http://www.astellnkern.com/eng/htm/ak120/ak120_2_feature01.asp , also available on Amazon: http://www.amazon.com/Astell-Kern-AK120II-Resolution-Player/dp/B00L3NAW42/
Either if you are a novice audio enthusiast or a seasoned audiophile, you are probably familiar with a name of "Astell & Kern". It’s like a fashion brand name or a luxury vehicle known for their stylish looks, durable design, and top of the line performance. Nevertheless, for a number of people A&K products are still an intimidating mystery because of their premium price and somewhat exclusive review coverage. I've read some of those reviews and still had a few unanswered questions, especially what makes this DAP so special at a premium price? As you can see, I've already mentioned “premium price” twice, and I'm only a few sentences into my review. Unfortunately, premium price quite often clouds are judgment since we have high expectations when in reality we are looking at diminishing returns. In the last few years I covered close to a dozen of DAPs priced between $50 -$700, and as a reviewer when you focus on a performance and features it makes it easier to judge a product without a biased opinion clouded by its price, though you still have to consider it. So let me proceed with my review, to share with you what I found, and to let you be the judge if this amazing piece of electronics (oops, a biased slip!) is worth your hard earned money.
People, who appreciate the art of sound or just educated enough to understand that free earbuds supplied with your smartphone or endorsed by celebrities just don’t cut it, are usually in constant search of new headphones to get closer to their ideal sound signature. Unfortunately, a lot of the times we neglect an important variable in this sound signature equation - the audio source. No matter how good you think your iDevice or Android phone sounds, it’s not an ideal source even if you manage to load it with lossless audio files. It will not substitute a dedicated DAP designed with one specific functionality in mind - playing audio without compromises or interferences from 3G/4G radios, noisy power supplies, social media updates, and a ton of apps running in the background. I always looked at DAP as anti-smartphone, and perhaps that’s why I was happy with small screens, hardware buttons, and other mechanical scrolling options. Now, I made a full circle and came back to a product which you can almost call a smartphone without a “phone”.
Arrived in a formally dressed silver carton sleeve, A&K wanted to keep an element of surprise without any revealing glossy pictures or too much of an artwork beside a stamped logo and a company name with a sticker of DUAL DAC on the front. AK120ii is their dual CS4398 DAC version, very similar in looks to AK100ii - a single CS4398 DAC version with a slightly shorter body and a few other cut down specs. On a back side of the packaging you will find a very comprehensive device specification that resembles a typical compact smartphone spec. We are talking about 3.31” AMOLED touch screen display with WVGA 480x800 resolution, 3,250 mAh li-polymer battery, 128GB of internal NAND memory with microSD expansion supporting up to 128GB flash card, Bluetooth 4.0, Wi-Fi 802.11 b/g/n, MTP media device connection, micro USB input, and OTA (over-the-air) firmware upgrade. Yes, we are still talking about DAP, and to reassure that – I removed the sleeve and opened an impressive black gift-box to reveal AK120ii inside of it.
Unboxing.
I have seen pictures of AK100ii/120ii before, but the first hand experience of opening the box and taking a glance at this DAP is priceless. Out of the box I found AK120ii to be surprisingly compact with dimensions of approximate 118mm x 55mm x 15mm and very lightweight at only 177g. Along with AK120ii, included accessories were a high quality usb to micro-usb charging/data cable, clear screen protectors for the front display and the back, a comprehensive quick start guide (printed on a quality paper like it was a wedding invitation), a warranty card, and a fancy leather case. And by fancy, I mean a designer quality "Made in Italy" case with perfect cutouts to reveal all the hardware controls and ports, and to provide a full access to touch screen where only a microSD port was covered. Btw, once fitted, the case is not easy to slide out, but I found a little trick by pushing it out with an eraser tip of a pencil through micro-usb port opening at the bottom. Could A&K have included additional accessories? I certainly would be happy to see more considering the asking price, but optional color leather cases, cradles, and some cables are available for purchase directly from Astell & Kern website.
Accessories.
As I already mentioned, the unit itself felt very compact and rather lightweight despite its solid build and alloy metal housing with a front touch screen. If this would have been a smartphone, I would have already proceeded to power it up, but I was still hesitant holding it in my hand while examining design details. I think the experience of testing and reviewing other DAPs made me appreciate this design even more, including how thoughtfully it was crafted. The ergonomics was perfect for use with one hand, and it felt very comfortable to reach hardware transport controls and volume knob as well as touch screen - not bad considering I have just an average size hands. The transport control buttons are located on the top left side, and you have Play/Pause in the middle between Skip Next/Prev where single click skips a track and a long press fast forwards/backwards. Buttons felt solid, no rattling or shaking, with a very nice tactile response. At the bottom of the same left side you will find microSD slot with a card sitting flush once fully inserted. The bottom of AK120ii has micro-usb connector for charging (impressive battery life of up to 12hrs) and connection to a computer (for a file transfer and use as USB DAC). The top has 3.5mm TRS headphone output (HO which also doubles as electrical/optical Line Out) and 2.5mm balanced output with a 4-pole TRRS connector (for a balanced wired output).
The upper right corner of AK120ii is protruded with a small power button at the top and a dedicated volume knob facing to the right. There is no denial it looks and feels like a real authentic scaled down hardware volume knob you can find in high end desktop systems. The rotation of the knob felt well controlled with a nice feedback, and I was able to adjust it even with a roll of a thumb. I was kind of wishing this volume knob would also function as a push-button control, but it didn’t. I mean, the whole look of the knob design with a cap just screams to be pushed, maybe with some hidden functionality like a quick mute. At the same time, I can understand it would be too easy to accidentally trigger it in your pocket, so this volume knob can only rotate.
Design.
Finally, I was able to tear myself away from pushing the buttons and turning the knob, and went ahead to power it up. Greeted by a glowing “A” logo, it took a little while for the player to boot up. From what I understand, previous AK versions were Unix/Linux based, and the new AK100ii/120ii/240 are Android based for a better support of wireless connection with OTA updates. As a matter of fact, as soon as I booted up and connected to Wi-Fi, within a minute I had a message in notification bar informing me about downloading a system update. It felt like at home with familiar smartphone functionality, especially with touch controls and notification bar. Touch screen was very responsive with every move/slide/touch registering without a lag or a delay, thus suggesting a well optimized custom OS on top of Android. The main screen was well laid out with tiles for Songs, Albums, Artists, Genres, Playlist, and Folder – all corresponding to a specific sorting method of accessing your song library. On top of that there were also tiles for MQS Streaming and Setting. Also, there was an “invisible” Home touch button at the bottom in the middle which took you back to a playback screen. From playback screen, where you have access to touch transport controls and song/album artwork, you can also create a Playlist by clicking on the screen and selecting "+".
The Setting menu was my first stop where you have toggle switches for Wi-Fi, Bluetooth, EQ, Gapless playback, Line Out and Balanced Out selection, L/R Balance, Brightness control, and Theme selection. There was also system settings related to Date/Time, Language, Power management, USB Connection, and Downloads folder. Further in System Info you can keep a track of model and firmware, internal storage management, and SD card management. But I think the greatest feature of A&K OS is how you can access most of these settings from one place in pull down notification bar. It was simply brilliant how you get a bird eye view of all the important settings where you enable/disable it with a simple touch and get into a detailed setting menu by touch’n’hold of the corresponding control. With notification bar accessible from any screen, this was the best and the easiest way to change settings on the fly.
One of the settings I found quite interesting was EQ where you can create a numerous custom presets. Also, you can draw EQ curve on the screen with a finger, and every EQ-band slider will self-adjust in animated fashion following a drawn curve. It was great to see a complete set of 10-band EQ (30Hz/60/120/250/500/1k/2k/4k/8k/16k), but I found it a bit frustrating to adjust individual bands since they were too close to each other to zero in with a finger touch. I would suggest for A&K to implement a zoom-in feature to expand EQ screen for a more precise selection of the EQ band.
In general, it was a pleasure to be able to see song names and artwork, and effortlessly control the playback and selection from a large and clear touch screen without straining my eyes. But it's not only the size of the screen, but how logical everything is laid out and utilized, from pull-down notification bar with access to all the settings, to a "home" button to get back to the playback and the rest of the controls and settings. I also liked how cool it was to adjust the volume once you turn the volume knob and get on-screen volume-arc graphics to slide your finger up/down and also to quickly enable/disable Balanced output. It takes a little bit of time to figure out controls, but afterwards it becomes a second nature to navigate. Going back to my other DAPs after using AK120ii was a painful experience using small screens and clicking buttons to navigate around.
Either if you are a novice audio enthusiast or a seasoned audiophile, you are probably familiar with a name of "Astell & Kern". It’s like a fashion brand name or a luxury vehicle known for their stylish looks, durable design, and top of the line performance. Nevertheless, for a number of people A&K products are still an intimidating mystery because of their premium price and somewhat exclusive review coverage. I've read some of those reviews and still had a few unanswered questions, especially what makes this DAP so special at a premium price? As you can see, I've already mentioned “premium price” twice, and I'm only a few sentences into my review. Unfortunately, premium price quite often clouds are judgment since we have high expectations when in reality we are looking at diminishing returns. In the last few years I covered close to a dozen of DAPs priced between $50 -$700, and as a reviewer when you focus on a performance and features it makes it easier to judge a product without a biased opinion clouded by its price, though you still have to consider it. So let me proceed with my review, to share with you what I found, and to let you be the judge if this amazing piece of electronics (oops, a biased slip!) is worth your hard earned money.
People, who appreciate the art of sound or just educated enough to understand that free earbuds supplied with your smartphone or endorsed by celebrities just don’t cut it, are usually in constant search of new headphones to get closer to their ideal sound signature. Unfortunately, a lot of the times we neglect an important variable in this sound signature equation - the audio source. No matter how good you think your iDevice or Android phone sounds, it’s not an ideal source even if you manage to load it with lossless audio files. It will not substitute a dedicated DAP designed with one specific functionality in mind - playing audio without compromises or interferences from 3G/4G radios, noisy power supplies, social media updates, and a ton of apps running in the background. I always looked at DAP as anti-smartphone, and perhaps that’s why I was happy with small screens, hardware buttons, and other mechanical scrolling options. Now, I made a full circle and came back to a product which you can almost call a smartphone without a “phone”.
Arrived in a formally dressed silver carton sleeve, A&K wanted to keep an element of surprise without any revealing glossy pictures or too much of an artwork beside a stamped logo and a company name with a sticker of DUAL DAC on the front. AK120ii is their dual CS4398 DAC version, very similar in looks to AK100ii - a single CS4398 DAC version with a slightly shorter body and a few other cut down specs. On a back side of the packaging you will find a very comprehensive device specification that resembles a typical compact smartphone spec. We are talking about 3.31” AMOLED touch screen display with WVGA 480x800 resolution, 3,250 mAh li-polymer battery, 128GB of internal NAND memory with microSD expansion supporting up to 128GB flash card, Bluetooth 4.0, Wi-Fi 802.11 b/g/n, MTP media device connection, micro USB input, and OTA (over-the-air) firmware upgrade. Yes, we are still talking about DAP, and to reassure that – I removed the sleeve and opened an impressive black gift-box to reveal AK120ii inside of it.
Unboxing.
I have seen pictures of AK100ii/120ii before, but the first hand experience of opening the box and taking a glance at this DAP is priceless. Out of the box I found AK120ii to be surprisingly compact with dimensions of approximate 118mm x 55mm x 15mm and very lightweight at only 177g. Along with AK120ii, included accessories were a high quality usb to micro-usb charging/data cable, clear screen protectors for the front display and the back, a comprehensive quick start guide (printed on a quality paper like it was a wedding invitation), a warranty card, and a fancy leather case. And by fancy, I mean a designer quality "Made in Italy" case with perfect cutouts to reveal all the hardware controls and ports, and to provide a full access to touch screen where only a microSD port was covered. Btw, once fitted, the case is not easy to slide out, but I found a little trick by pushing it out with an eraser tip of a pencil through micro-usb port opening at the bottom. Could A&K have included additional accessories? I certainly would be happy to see more considering the asking price, but optional color leather cases, cradles, and some cables are available for purchase directly from Astell & Kern website.
Accessories.
As I already mentioned, the unit itself felt very compact and rather lightweight despite its solid build and alloy metal housing with a front touch screen. If this would have been a smartphone, I would have already proceeded to power it up, but I was still hesitant holding it in my hand while examining design details. I think the experience of testing and reviewing other DAPs made me appreciate this design even more, including how thoughtfully it was crafted. The ergonomics was perfect for use with one hand, and it felt very comfortable to reach hardware transport controls and volume knob as well as touch screen - not bad considering I have just an average size hands. The transport control buttons are located on the top left side, and you have Play/Pause in the middle between Skip Next/Prev where single click skips a track and a long press fast forwards/backwards. Buttons felt solid, no rattling or shaking, with a very nice tactile response. At the bottom of the same left side you will find microSD slot with a card sitting flush once fully inserted. The bottom of AK120ii has micro-usb connector for charging (impressive battery life of up to 12hrs) and connection to a computer (for a file transfer and use as USB DAC). The top has 3.5mm TRS headphone output (HO which also doubles as electrical/optical Line Out) and 2.5mm balanced output with a 4-pole TRRS connector (for a balanced wired output).
The upper right corner of AK120ii is protruded with a small power button at the top and a dedicated volume knob facing to the right. There is no denial it looks and feels like a real authentic scaled down hardware volume knob you can find in high end desktop systems. The rotation of the knob felt well controlled with a nice feedback, and I was able to adjust it even with a roll of a thumb. I was kind of wishing this volume knob would also function as a push-button control, but it didn’t. I mean, the whole look of the knob design with a cap just screams to be pushed, maybe with some hidden functionality like a quick mute. At the same time, I can understand it would be too easy to accidentally trigger it in your pocket, so this volume knob can only rotate.
Design.
Finally, I was able to tear myself away from pushing the buttons and turning the knob, and went ahead to power it up. Greeted by a glowing “A” logo, it took a little while for the player to boot up. From what I understand, previous AK versions were Unix/Linux based, and the new AK100ii/120ii/240 are Android based for a better support of wireless connection with OTA updates. As a matter of fact, as soon as I booted up and connected to Wi-Fi, within a minute I had a message in notification bar informing me about downloading a system update. It felt like at home with familiar smartphone functionality, especially with touch controls and notification bar. Touch screen was very responsive with every move/slide/touch registering without a lag or a delay, thus suggesting a well optimized custom OS on top of Android. The main screen was well laid out with tiles for Songs, Albums, Artists, Genres, Playlist, and Folder – all corresponding to a specific sorting method of accessing your song library. On top of that there were also tiles for MQS Streaming and Setting. Also, there was an “invisible” Home touch button at the bottom in the middle which took you back to a playback screen. From playback screen, where you have access to touch transport controls and song/album artwork, you can also create a Playlist by clicking on the screen and selecting "+".
The Setting menu was my first stop where you have toggle switches for Wi-Fi, Bluetooth, EQ, Gapless playback, Line Out and Balanced Out selection, L/R Balance, Brightness control, and Theme selection. There was also system settings related to Date/Time, Language, Power management, USB Connection, and Downloads folder. Further in System Info you can keep a track of model and firmware, internal storage management, and SD card management. But I think the greatest feature of A&K OS is how you can access most of these settings from one place in pull down notification bar. It was simply brilliant how you get a bird eye view of all the important settings where you enable/disable it with a simple touch and get into a detailed setting menu by touch’n’hold of the corresponding control. With notification bar accessible from any screen, this was the best and the easiest way to change settings on the fly.
One of the settings I found quite interesting was EQ where you can create a numerous custom presets. Also, you can draw EQ curve on the screen with a finger, and every EQ-band slider will self-adjust in animated fashion following a drawn curve. It was great to see a complete set of 10-band EQ (30Hz/60/120/250/500/1k/2k/4k/8k/16k), but I found it a bit frustrating to adjust individual bands since they were too close to each other to zero in with a finger touch. I would suggest for A&K to implement a zoom-in feature to expand EQ screen for a more precise selection of the EQ band.
In general, it was a pleasure to be able to see song names and artwork, and effortlessly control the playback and selection from a large and clear touch screen without straining my eyes. But it's not only the size of the screen, but how logical everything is laid out and utilized, from pull-down notification bar with access to all the settings, to a "home" button to get back to the playback and the rest of the controls and settings. I also liked how cool it was to adjust the volume once you turn the volume knob and get on-screen volume-arc graphics to slide your finger up/down and also to quickly enable/disable Balanced output. It takes a little bit of time to figure out controls, but afterwards it becomes a second nature to navigate. Going back to my other DAPs after using AK120ii was a painful experience using small screens and clicking buttons to navigate around.