The BIT OPUS#1 ブラック 【ポータブル ハイレゾ プレイヤー】
- モデル番号を入力してください これが適合するか確認：
- ポータブルMQS（マスタリング・クオリティ・サウンド）オーディオプレイヤー OPUS#1は、著名なマスタリングスタジオやサウンドデザイナーと徹底してチューニングを重ね、ミュージシャンが演奏しながら肌で感じたリアルなサウンドを臨場感そのままに表現できる最高のサウンドクオリティを実現。 OPUS#１は、ハードウェアを最高のバランスで最適化し、原音に忠実かつ明瞭でありながら、ともすれば冷たいイメージのあるデジタルサウンドに暖かさを加え、豊かで耳に心地良いサウンドを目指しました。
- デュアルDAC構成でバランス出力にも対応 D/Aコンバーターには高級オーディオの分野でも定評のあるCirrus Logic製CS4398を採用。24bit/192kHzまでの高音質再生に対応しており、これをデュアル構成にすることで高級ヘッドフォンの性能向上に合わせて注目を集めているバランス出力にも対応しています※。パワフルで洗練されたサウンドを作り出すアルゴリズムによりハイレゾオーディオを活かした臨場感そのままのリアルなサウンドクオリティを実現しています。
- 4インチタッチパネル液晶搭載 本体には4インチのTFTカラー液晶を搭載し、保存されているオーディオファイルの様々な楽曲情報を表示することができます。画面はタッチパネルになっており、シンプルなユーザーインターフェースで、画面を見ながら直感的に素早く軽快に操作することができます。楽曲の再生もアルバム、アーティスト、ジャンルやフォルダごとに再生指定ができ、お気に入り登録も可能です。
- 耐久性と高級感を兼ね備えた本体 本体はポケットにフィットするサイズでありながらABS樹脂とガラス素材を巧みに組み合わせ耐久性と高級感を実現しています。なお本体色はブラックガンメタリックとメタリックゴールドの2色を用意しています。
- 多彩なハイレゾオーディオフォーマットに対応 ハイレゾオーディオのフォーマットとして定評のあるDSDを始めとしWAV, FLAC,ALAC,AIFF,MP3,OGG,APEなどに対応しています。
ONKYO デジタルオーディオプレーヤー rubato ハイレゾ対応 ブラック DP-S1(B)
パイオニア Pioneer XDP-300R デジタルオーディオプレーヤー ハイレゾ対応 ブラック XDP-300R(B) 【国内正規品】
【国内正規品】SHANLING ハイレゾ対応ミュージックプレーヤー M1 ブルー M1-BL
N5ii DAP N5ii-DAP
ハイレゾプレーヤー PLENUE J ジュピターゴールド PJ-64G-GD
|価格||￥ 34,560||￥ 20,724||￥ 38,298||￥ 11,683||￥ 45,405||￥ 33,059|
|ハードディスク容量||情報が提供されていません||16 GB||情報が提供されていません||情報が提供されていません||32 GB||64 GB|
|商品の寸法||1.8 x 7.2 x 11.2 cm||6.3 x 1.5 x 9.4 cm||7.59 x 1.3 x 12.89 cm||5 x 1.28 x 6 cm||5.7 x 1.53 x 11.5 cm||5.3 x 1 x 10.2 cm|
|重量||情報が提供されていません||130 g||200 g||60 g||171 g||78 g|
◎スペック ディスプレイ：4” TFT タッチスクリーン (480 x 800) CPU/内蔵メモリー：ARM Cortex-A9 1.4GHz,クアッドコア/ メモリー(RAM) : DDR3 1GB ボタン：電源、再生/一時停止、前の曲、次の曲、ボリュームアップ/ダウン 対応オーディオファイル形式： WAV, FLAC, ALAC, AIFF, WMA, MP3, OGG, APE(Normal, High, Fast) DSD64, DSD128 (DSDはPCM変換) サンプリング周波数(量子化ビット数)：32kHz～192kHz(8/16/24bits per Sample) イコライザー/エフェクト：10バンド、標準/ユーザー 1/2/3 アルバムアート：対応 ギャップレス再生：対応 タグ情報：ID3 V1, V1.1, V2.2, V2.3, V2.4. 再生モード：通常再生、シャッフル再生、リピート再生、1曲リピート再生 充電/データ転送： USB Micro-B 入力端子 (充電・データ転送兼用) 接続モード : MTP (メディアデバイス) 出力端子： 3.5mmイヤホン出力 （光デジタル出力対応） 2.5mm 4極バランス出力 バッテリー：4,000mAh/3.7V リチウムポリマー 充電持続時間/充電時間 再生時: 約10時間(44.1kHz 16bit, Vol 75, 32Ω, LCDオフ時) 充電時間: 約4時間（USB電源アダプター時) ストレージ： 内蔵：32GB 外部： microSDカードスロット (最大200GB)x 2 (SDXC: exFAT/NTFS対応) クロックソース/ジッター：50ps(Typ) システムOS：Android 対応OS：Windows 7,8(32/64bit), MAC OS x 10.9 以降 寸法：72mm(幅) x 112mm(奥行き) x 18mm(高さ) 重量：185g オーディオ性能 DAC：CS4398 x 2EA(デュアルDAC) D/Aコンバータ：24bit/192kHzまで対応 (Bit to Bit Decoding) デコード：±0.02dB(20Hz～20kHz) アンバランス & バランス 周波数特性：±0.3dB(10Hz～70kHz) アンバランス & バランス S/N比： 114dB @ 1KHz, アンバランス 115dB @ 1KHz, バランス クロストーク：130dB @ 1KHz,アンバランス /135dB @ 1KHz, バランス THD+N：0.0007% @ 1KHz 出力インピーダンス：バランス出力 2.5mm(1Ω) / イヤホン 3.5mm(2Ω) 出力レベル：アンバランス2.1Vrms / バランス 2.3Vrms (無負荷時) ボリューム調整：150 段階 付属品 □マイクロUSBケーブル
まだ OPUS#1では クラシックしか視聴確認しておりませんがとても良い音質です(低域も非常にあり)。 J POP、洋楽等を視聴していない為に クラシック、POP どちら向きかは 後ほど確認してみたいです・・・。
works for me and it does have a sophisticated, sweet sound without any brashness that most players have, and the sound is the main thing.
The aspect I like the most of the Opus 1 is the sound. I listen to this in bed hooked up to a real stereo, and I am highly critical of the sound when I am wide awake in the middle of the night. No worries, I only require a few hours of sleep usually. I had had my Fiio X5 hooked up, but it sounded flat in that application, so I replaced the X5 with a Cowon Plenue D set on "crystal clear" and that sounds excellent, a little more brash than the Opus 1 but still fantastic. The Plenue D only stores 16 0 GB and I have 255 GB of lossless music and I am not done adding to the lossless library. I want to hear everything. The Opus 1 stores everything and sounds refined and sweet with no brashness. I am sure it will sound even better as it breaks in. I run it 24/7 off of a/c. The Opus 1 has to reload everything each time it reboots.
I like the shape and its looks. The case is pretty cool. I love the huge screen and the way the artwork shows. Beautiful. However, the screen gets funky an angle. The back and the front are not glass. They are plastic. Keep the Opus in its case. The buttons for volume, track and pause are tiny and difficult to manuver.The android screen is super fast. It flys through songs, albums and folder artists, I like the way the charging indicator shows the percentage of charge upon charging.
This is my first and probably last venture into something that is perhaps a level above my other players, Fiio X5 1st gen, Shanling M2, Cowon Plenue D. Every player has its issues. What is important is sound and ease of use. I really like the sound of the Opus 1, and I will overlook the flaws and enjoy this product. I will appreciate it if anyone can share basic help explaining what is going on with how this item sorts its music files.I am far from a computer geek.
I recommend this product only if you have the patience to tolerate the programming issues. It has a very sweet, sophisticated sound. B/T/W the Opus is big for a portable. It is about the same size of the original Fiio X5 but it does not weigh as much.
Arrived in a compact black box, you are greeted with a plain “Opus#1, Hi-Res AUDIO Ver. 1.0” at the top and “the bit” at the bottom. I noticed that original www.thebir.co.kr website hasn’t been updated since the last year, and all the effort is focused now on their new www.audio-opus.com domain, which makes me wonder if they are trying to distant themselves from “the Best Internet Technology” to “the best audio technology” with Audio-Opus rebranding, something that would make more sense. Also, when you visit their website you will find a mentioning of 6 additional products, all labeled as Opus# with different index number. Looks like Opus will be their new hi-res audio platform for various Android based DAPs, dacs/amps, and even a car audio unit.
On the back of the box you will find a detailed General Specification and Audio Performance list which paints a rather impressive picture, though you will not find the picture of the actual DAP on the packaging. Continuing with a mystery, there is not much to find once you slide the exterior packaging sleeve to get to the packaging box with another “Opus#1” print. Not until you take the box cover off, you will unravel the mystery and will be looking at a small rectangular DAP with a large touch screen dominating its top surface.
After removing the DAP, the only included accessories you will find are the usb to micro-usb quality charging/data cable and a screen protector, while if I’m not mistaken the glass back of the DAP already has a protector applied to it. When it comes to DAPs, I don’t expect too many accessories, but one must-have accessory was missing in the packaging box.
- The leather case -
I don’t recall ever dedicating a separate section in any of my DAP reviews to a single accessory, such as the case, but in this “case” I decided to make an exception. Along with the DAP I also received another Audio-Opus branded box which contained a leather case for Opus#1. I was told that this leather case will be sold as a separate $50 accessory. To my surprise, when I look at Opus#1 listing on Amazon – it mentions the DAP being sold together with a leather case, included in $599 price. I'm not sure if this is for a limited time only as part of a new product introduction, but I really hope that moving forward they will continue to include it together with Opus#1.
So what is so special about this case? For starters and even though it has Opus branding inside and outside, this is a genuine leather case by Dignis. Perhaps sharing the same country of origin, they decided to collaborate with Dignis who makes some of the best genuine Italian leather cases for many popular DAPs. While dealing with ABS solid plastic body and tempered glass back panel, as well as slightly wider than average footprint, grip enhancement is important and that’s exactly what this case offers without masking the details of the design.
The case has a full opening at the top where the DAP slides in, allowing full access to the power button and both headphone ports. At the bottom you get an access to a generous opening around micro-usb port, and you will also notice that bottom corners hug the shape of the DAP with a few openings on each side. The micro-SD access will be permanently covered and protected, and you will have to remove the case to replace these cards. Btw, for easy removal of the DAP, I recommend using a pencil with an eraser tip pushing up through micro-usb port opening at the bottom. The volume and transport control buttons on each side are completely covered.
In their usual Dignis fashion, the shapes of these buttons are imprinted and perfectly aligned with physical buttons, and very easy to press. The functionality print of these buttons is stamped on the leather, but due to their small size a bit hard to see. As a matter of fact, due to a very small size of the buttons, the imprint of their round shape on the leather is not very easy to feel when you slide your finger across without looking. It’s a little easier with volume buttons since you are dealing with only two and can blindly figure out which one is up or down, but it becomes a bit of a hassle when dealing with 3 transport buttons without looking at them up close. I still appreciate the fact that I don’t need to turn on the display every time I want to pause or skip a song, but here it would have made more sense to offer a cutout for buttons instead of covering them up.
- Design -
When it comes to a design, I found it to be very straight forward and clean. The main focus of this 112mm x 72mm x 18mm DAP is a large 4” TFT touch screen display with 480x800 resolution. All the edges around the sides are beveled, creating a more unique look with a slight resemblance to A&K DAPs, especially the asymmetric design with a wider edge on the right side. Don’t be surprised, there will be more A&K references in my review since it looks like that theBit drew some external and internal design inspiration from their Astell & Kern neighbor. With a front covered by a tempered glass touch screen, there is no other visible controls until you turn the unit to look around the sides. The back of the DAP also has a tempered glass plate.
On the right at the top you will find 3 transport control buttons, rather small, not rotating (to make sure printed label functionality icon stays aligned), and nearly flush with a surface with maybe less than a mil which sticks out just enough to feel the tactile response when you push it. Also keep in mind, the button arrangement also follows A&K with Play/Pause in the middle and Skip next/prev around it. Not everybody follows the same arrangement, and often I get a bit confused when switch to L&P DAPs where Plays/Pause is at the top. But nevertheless, those familiar with A&K DAPs will feel right at home.
On the left side at the top you have Vol+/- buttons, exactly the same size and shape as transport buttons. Down at the bottom on the left side you have a tight cover over dual micro SD stacked slots, similar to those used in DX80 to save the room so you don’t have to use 2 separate card slots side by side. Each micro SD slot works fine with 200GB flash card, where along with internal 32GB of flash storage, you can have up to 432GB of space to store your music files.
Bottom of the DAP has a standard micro-USB connector for charging and data transfer, and the top has a Power button (a typical long press power-on or power-off with onscreen confirmation), 2.5mm TRRS balanced HO (A&K wired), and 3.5mm TRS single ended HO shared with optical mini-toslink output. 3.5mm HO shared with optical output is also exactly the same as used in A&K DAPs. You don’t have coax SPDIF output, but can drive any external DAC/amp (like iBasso D14 or Micro iDSD) with optical output which I often find superior in sound quality to coax cable output.
Under the hood you will find a dual CS4398 DAC along with filters and amps which hasn’t been disclosed by manufacturer. Opus#1 is a prime example of a design where selection of internal DAC components doesn’t mean it will sound exactly the same as AK120ii or DX80, both of which use the same dual DAC config. Unique amp section architecture and other fine tunings will make it stand out from other designs. Considering Android OS running in the background, I was also not surprised they used ARM Cortex-A9 1.4GHz quad-core CPU with 1GB of DDR3 – plenty of power for smooth responsive touch screen operation and native DSD support where I tested up to DSD256 without a single hiccup.
Of course, you can also look into SNR, THD, and Crosstalk specs, but what I typically care about is output power and impedance. Opus guys didn’t go into too many details, but did mention that Balanced 2.5mm 4-pole output is rated at 1 ohm output impedance and 2.3Vrms which translates into 330mW @ 16ohm. For Single Ended 3.5mm TRS output the rating is 2 ohm output impedance and 2.1Vrms which translates roughly into 275mW @ 16ohm. These are all decent output power numbers for most IEMs, efficient full size, and even some not so efficient high impedance and harder to drive cans – all of which I will cover in my Pair up section of the review.
The 2 ohm 3.5mm output is pushing it a bit when it comes to multi-BA driver IEMs, and perhaps it was just a placebo effect where I preferred a sound from 1 ohm 2.5mm balanced output (especially bass being a bit tighter). I assume that Opus team tried to reach a design compromise in order to appeal to different types of headphones. Spec numbers aside, I use my ears to judge the sound, and across a broad range of my different headphone types I found the sound performance to be on par with a number of my others DAPs that use <1 ohm output impedance. But I still prefer to use balanced vs single ended in case of Opus#1.
Another important factor is the battery, where Opus design team used 4000 mAh/3.7V li-polymer type. When I first got this DAP and after upgrading the firmware to one of the earlier releases, I wasn’t able to get as much of a battery life as it was advertised. After a handful of charge/discharge cycles as I was burning in both HO ports and the update to the most recent 1.10.23 fw, now I’m able to get a solid 10.5-11 hrs of continuous playback with most of my IEMs, regardless of balanced or single ended output. Furthermore, it has an impressive deep sleep mode with an instant on feature where I could leave Opus#1 without shutting down for days, and I see a very slow battery drain. I mean, it drains after awhile, but I didn’t expect that Android based OS will be optimized to such efficient level.
Overall, I was very pleased with a design. It’s not 100% perfect, like for example volume and playback buttons could be bigger, and the DAP itself is a bit on a wider side in comparison to many of my other DAPs. And there is also a question of using ABS plastic body versus metal. With Dignis/leather case it really doesn’t matter, and the plastic itself is actually enhanced and has a high quality. But plastic body will also result in a slightly inferior EMI isolation where right next to my phone I can hear an occasional interference, while 3-4 inches away everything was fine. Opus#1 has great one-hand use ergonomics, solid build, and a feature packed design. The performance was very smooth, regardless if you through at it lossy or lossless files, and as I mentioned before – it went right through DSD256 like a butter, handling DSD support without a single glitch while I was touch swiping through my 2GB files.
- GUI -
I know it probably going to sound shallow because sound quality should be the highest priority, but after a few recent reviews of DAPs with touch screen interface I'm having a problem going back to navigation buttons and scrolling wheels. Use of smartphone and tablet audio apps turned me into a creature of habit where I want instant gratification of flipping through dozens of songs, stopping on the one I want, and swiping through to fast forward to my favorite part. For me personally, the user experience of DAP operation is very important, and Opus#1 definitely got a big check mark next to it! Not everything is perfect yet, but I've already seen 3 firmware updates in less than a month since I received this DAP for review.
First of all, Opus OS is Android based, but you are not running full Android OS. There is a custom Audio Player app/interface running on top of the Android OS which is in the background, and you don't have access to wifi or BT or being able to install any other apps. So if you are looking to stream from Spotify or Tidal or want to pair up wireless headphones, you can stop reading this review because Opus#1 will not offer that. Presumably, full Android support will be available in Opus#2 release. If you are OK using only internal storage with a very responsive touch swipe interface, then you can proceed to find out more.
From the moment you press the power button, the current startup is a bit on a slower side, closer to 20-22sec where I feel like something is being indexed or perhaps some extra Android processes are being loaded in the background. After a few latest firmware updates, this start up time is actually down from the original 30+ sec. Hopefully, theBit will continue with further optimization of a start up; no complaints about a shutdown which only takes a few seconds.
Once you are in the Main Playback screen, you have a clear layout with artwork taking approximately half of the screen and other controls at the top in the notification area and Playback control in the lower part of the screen. Notification area is semi transparent so you can still see the top of the song/album artwork, if one is embedded. Up there all the way at the top you have a notification bar where you will find play/pause icon and repeat/shuffle mode indicators on the left, balanced on/off and volume level in the middle, and sleep and selected EQ and battery indication all the way to the right. That area is for notifications only, nothing to pull down or to launch by tapping.
Right below it, you have touch icon for File Browser (on the left), Current Directory Playlist with corresponding number of songs in the folder and which one is being played – in the middle, and Setup icon to enter Shortcuts menu on the right. File Browser takes you to another screen where you can view/sort tracks by Songs, Albums, Artists, Genres, Folders (at the top you can select MicroSD 1, 2, or Internal source), and Favorite (from your favorite list of tagged songs). Within those screens, tapping in the middle of the top below Notification bar takes you back to the currently playing song. Current Directory Playlist index has a bit of inconsistent behavior where upon tapping it usually shows you a list of songs in the current sub-directory, but when you are playing songs from the main root directory (/Music/) – it shows every song including all your subdirectories (I treat all my albums as sub-directories). Not sure if it’s intended "by design", but I hope it will be fixed in a future firmware release.
Clicking on Setup opens up a sub-menu with a few shortcuts, for EQ, Balanced Output selection, Sleep, Screen Brightness control, and another Tools icon in the upper right to enter the actual Settings menu. Every DAP has their own implementation of menus and controls, and it just takes awhile to get used to it. EQ just enables the eq with currently selected preset (there are 3 user customizable presets), Balanced Out toggles 2.5mm output on/off, and Sleep starts a sleep timer. Screen Brightness slider just does what it says, adjusts the brightness of the screen.
Settings menu is rather simple. You have EQ toggle switch (the same one you can access from the shortcuts menu), User Equalizer takes you to 3 separate User# settings where you can customize 10-band typical paragraphic EQ (or reset it – touch icon in upper right corner). Current EQ implementation is useless because you can’t adjust bands in real time as you listening to the song. The EQ change will only go in effect after you pause and re-start playing the music. I personally don’t use EQ, but would be very frustrated with this implementation. I also hope they will add genre specific presets for EQ since some people might find it useful. Also when EQ is selected, it needs to show EQ preset# in the notification bar.
Next in the Settings menu you have Balanced Out toggle (the same as in shortcuts menu), Balance control to adjust L/R sound balance, Language selection, Screen brightness (the same as in shortcuts menu), Auto Display off timeout setting, Sleep toggle (the same as in shortcuts menu) with Sleep Time setting, System info indicating fw version, Internal and External storage capacity including being able to mount and to erase each SD card, and a link to Open Source licenses. Update takes you to System Update to apply new firmware which you have to manually download and copy into the root directory – no OTA update is supported due to lack of wifi. Last, but not least, is Initialization with DB initialize (this one re-inits the database with song index), Settings initialize (to reset settings), and Factory reset (resets device to factory state, including erasing all your songs stored in internal memory).
In the Main Playback screen, below artwork area, you have a touch swipe playback control where you can swipe to fast forward through a song, and you can see playback marker position in time, the song format, and the remaining time (no total song time can be displayed). Below that you have Song/Album name info, and Play/Pause and Skip touch icons. You can also skip between the songs by swiping the artwork area of the display left/right. All the way at the bottom in the left corner you can select Repeat mode where you can either repeat a song in a loop, or you can repeat all (if you are playing all songs) or a folder (if you are inside of a folder) or an album (if you are playing an album). All the way to the right is Shuffle selection. Both Repeat and Shuffle could be selected at the same time, and corresponding icon will appear in notification bar next to the playback function icon on the left. Favorite “star” icon is in the middle all the way at the bottom, and you simply tag the currently playing song to be added to your Favorite folder – very easy.
Every manufacturer has their own creative way of implementing GUI and the way how they partition and organize the functionality within it. There is always a learning curve when you get a new “toy” and it’s no different with Opus#1. I got used to this interface very quickly, and everything now makes perfect sense to me, especially since I have been using this DAP exclusively for the last 2-3 weeks. I still hope EQ will be implemented properly, and I can copy my “loose” tracks into the root /Music/ directory where I can navigate and skip through those specific songs instead of the list of All song including sub-folders. For now, I just created /Music/Various/ folder where I have compilation of my various tracks I moved from the root /Music/ directory.
Here are a few other random observations about the interface and the playback. Gapless seems to be nearly perfect, at least with my “gapless” split DJ mix directory I use for testing. I also had no problem reading CUE file and could fast forward through it, but wasn’t able to skip through the tracks embedded in there. Hitting Play/Pause has a slight delay and that is probably due to a deep sleep mode which Opus#1 enters when you pause it, the same when sometimes I have a screen off and play/pause hw button doesn’t always respond until I turn the screen on. But I still find it remarkable how I can pause the song, and come back to this DAP a few days later to find hardly any dent in battery life. USB DAC is not currently enabled, but on their to-do list.
Overall, the interface is very responsive, like dealing with your typical smartphone touch screen. The resolution is just perfect to display artwork, if embedded with a song. If not, it will display a default image, though I also found a bug where artwork embedded with one of my songs showed up across half a dozen of other songs without embedded artwork. This is an example of another firmware quirk which should be easy to fix. I would also like to see a battery capacity indicator so I don’t have to guess remaining battery time based on 4 segments of the icon. Definitely, more work needs to be done, but none of this is critical or a showstopper.
- Sound Analysis -
When I received Opus for review, I put it through burn in for a few days, switching between 3.5mm and 2.5mm outputs while I was spot checking the sound. During these few days, I quickly realized that brief spot checking wasn’t enough for me because I really started to like what I'm hearing. As a result, I ended up doing half of the burn in while actually listening to Opus#1 at home or during my lunch break at work.
Starting with the low end, I hear a nicely textured and deeply extended sub-bass rumble, adding a nice warm analog flavor to the sound. Moving to the mid-bass - I found it to be not as aggressive as I hear it with other DAPs where you have more speed and faster attack. Here it was a bit laid back and slightly relaxed, though at the same time still very articulate and with a noticeable impact. Moving to the mids, lower mids have a nice body and never add muddiness to any of my headphones beyond their own sound signature characteristics, while upper mids region is very resolving, very detailed, with an excellent transparency, and still sounding organic and natural. Treble is very detailed and highly resolving as well, adding nice degree of airiness to many of my headphones. At the same time I hear it being slightly rolled off at the top where even my harsh/grainy headphones sound pleasant to my ears. I was quite impressed how some of my borderline sibilant IEMs and full size headphones (with a typical metallic sheen) never lost their level of micro-detail retrieval yet they were smooth and resolving at the same time.
The soundstage is wide, and it improves even further when you switch to balanced output where it gets even a little bit wider and deeper, resulting in a more holographic staging. The layering and separation is very good, even when I use my warmer headphones which could sound congested with some sources. But one thing that impressed me the most was how transparent and dynamic Opus#1 sounds. You don't realize this until you do a/b comparison with other DAPs, and you suddenly start to hear how the sound opens up and becomes uncompressed and expanded.
Overall, I found Opus#1 to have a very unique, open, musical, highly resolving, transparent sound with a smooth natural tonality. It's hard to just classify it as being on a warmer side based on its low end performance, or the brighter side based on its upper mids/treble performance. It has a very interesting blend of a revealing highly resolving sound with an analog musical smoothness. Like a hybrid, it kind of combines both worlds of analog smoothness and digital precision without too much coloring.
- Conclusion -
I discovered Opus#1 by accident, without even realizing that it will get catapulted to the top of my DAP list. It's still work in progress since USB DAC functionality needs to be enabled, not even something I would use on a daily basis, but still a nice feature to complete the package. Plus, a few other minor fw fixes and optimizations would be nice, including EQ fix, but nothing which I consider to be a showstopper. Priced to be somewhere between other mid-fi and summit-fi DAPs, Opus#1 definitely offers a summit-fi sound quality with an open, musical, highly resolving, transparent sound wrapped in a smooth natural tonality. Add to that a great battery life of 10-11hrs (headphone dependent), storage capacity of up to 432GB, full touch screen interface with external hardware transport control buttons, single ended and balanced outputs, digital optical output – and you see not only summit-fi sound quality but also summit-fi list of features. With a current bonus offer of a custom Dignis leather case, still included under Amazon listing, you have a complete DAP package with a very impressive price/performance ratio.
I originally gave Opus#1 4.5 stars (based on the current fw), but since Amazon only allows whole star rating, I rounded it up to 5 stars.