TempoTecSonata BHD Pro Type C USB dongle DAC, USB C DAC,Headphone Amplifier 4.4mm& 3.5mm,PCM384kHz,DSD256,MQA8X,Tidal for iPhone&Android&MacOS&Win (Sonata BHD Pro-Black)…

I really like these. So much so I bought 4 of them. 2 for me & 2 for my girlfriend.The have a nice big sound that many describe as warm but I feel that they provide a very accurate & energetic sound. I have seen tests of these that indicate truly flat response from 20 to 40,000hz with very little roll-off even at 5Hz. Jitter for all practical purposes was nonexistent in those tests. This beats a lot of truly high-end gear of just a few years ago.There does not seem to be any emphasis on any one part of the spectrum & the sound of the high frequencies, though not softened in any way, do sound very refined in a positive way. No harshness to them, but still very detailed. I was very surprised by this from such an inexpensive unit.I like particularly that these have balanced output as well as single-ended. This give extra power & volume for those recording that are recorded too softly to enjoy otherwise making them an enjoyable experience.There are a couple minor issues.One is they automatically turn off output if there is no signal for a while. This at least on my windows PC required me to reset the USB plug in its socket to restore output as it did not automatically restore output when it received signal again.Second issue that could affect longevity in portable usage is the headphone Jack provided unlimited access for dirt or moisture/water to enter the unit. You can look straight through them & see the LED indicator at other end of the DAC/AMP. You can however disassemble the unit for cleaning if you get the necessary tools which need to include a very small Allen wrench bit.

It does improve sound, light weight enhances mobility. Good buy!

Using this with AirPodsMax and it works great when used with a MAC but will not work with an iPhone. The sound improvement with this is night and day from using standard BT. You will however need to buy apples 30$ cord for this to work with AirPodMax.

Wow! This headphone amplifier is on par or better than various desktop-discrete and “stack” setups I have tried over the years, even those costing 5-10x more. Highly recommended for a wide variety of headphones of low to high sensitivity (dynamic driver and planar). Results may vary based on your desired volume levels, however, I found this amplifier more than adequate for my “not very sensitive” planar magnetic open back headphones, with no indication of strain or clipping. For reference, my headphones range from 32-300 ohms, with sensitivities ranging from 90dB-100dB+.After using this headphone amp, there’s no way, and no reason, I’d go back to using the 3.5mm output on my phone, even for on-the-go convenience.I now have a dilemma on whether to keep my desktop amplifiers, or replace them with other units like this.. not a bad problem to have!

This DAC entirely stops working with my S22 for hours ar a time until it randomly works again completely unexplained, before going out again. I emailed customer support on their site to no response, absolutely one of the worst product experiences Ive ever had.

this is a great sounding DAC. I just couldn't get it to work consistently with my Galaxy 21S. I tried all the options, but in the end refunded it and dropped a little more on a competing product. If there had been no issues, I would have kept it, so 5 stars for everything being great on the device an its function. But net to 3 stars for lack of use across the board on all devices.

I bought based on a review on audio sound review dot com. Is it good? Oh, yeah. It came quickly and I plugged it in to my phone. Weird green light when I played. Is that yellow? It wasn't any other color. I plugged it into my tablet and it went cyan. PC was green/yellow. That is yellow on this device. I explored why my PC wasn't showing high bit rate. Went into settings and then advanced settings to see. In there is a toggle for many nitrates. Set to highest, but my source apparently limited out to cyan. So it works.I am an audio enthusiast not an audiophile. But, I could tell a difference in my Audio Technica headphones. It was a better bass. Less muddy. I checked with another enthusiast. He just smiled. I heard some things on Pink Floyd Wish You Were Here that I've never heard before. The cough is well defined and I heard the breathing appeared to be puffs on a cigarette. Many other songs had similar increases in fidelity.I highly recommend. It will put a smile on your face for not a lot of dough.I never have figured out why my cheap android phone is yellow. It still is. I just use it on better devices.

ヘッドホンアンプの出力が強すぎて、しかもゲインの設定を記憶できないため、設定が接続されるとすぐに音楽が自動再生される機器では、IEMが大きな音を発する可能性があり、イヤホンが壊れるのではないかと心配することがあります。

9月18日に購入、約1か月使っています。この値段このサイズでこの音質ならコスパは頂点クラスでしょう。ヘッドホン出力も十分高音質ですが、ラインアウトでアンプに繋ぐことで本領発揮。10万クラスの据え置き型に一歩も引けを取らない高音質です。DSD、MQA対応なのも嬉しいところ。ただMQA-CDに未対応なのが残念。

これをスマホに取り付け二台のヘッドホン（Bluetooth機能有り）に有線接続で繋いで試してみました。ヘッドホンスイッチオフ状態→重低音がすごく、がんがんに前面に押し出してきて中・高音を圧迫。据え置き型のDAC（二台有り、二台ともに）では、強めに重低音響くが自然な音響です。ヘッドホンスイッチオン状態→がんがんに響いていた重低音のがんがんさが消え、自然な音響に成りました。スマホ直接接続でヘッドホンをオフ状態でもこれほどの重低音無し。スイッチオンにすれば綺麗に鳴り響いてくれるますが、それほど効果を感じません、これがノイキャン＆ワイヤレスヘッドホンへ有線接続した時のインプレです。追記：ドライバーをメーカーサイトからダウンロード＆インストール後、PCに直接続（コントロールパネルで192KHZ・32ビット設定）、ヘッドホン接続、重低音寄りの音響だが耳が慣れこんなもんかしらと思う？ただ解像度は良く、高音のシャリンというような音も歯切れがよく明瞭です。PCからスピーカーに接続してみました。やはり重低音寄りでドンと響きます。しかし、音はすごく明瞭で高音のシャリーンの音の粒を感じる。イコライザー補正でドンの部分を削るとかなり好みの良い音が出ていますし、空間も感じますので据え置きの代わりに成りますね、LED点灯画像を見つけたので上げておきます。以上、私感です。

使用して30分ほどするとLEDが赤になって音が切れます耐久性にも難があり、購入から2ヶ月で＋ボタンが効かなくなりました(＋を押したらボリュームが下がる)分解してみたらスイッチの根本がパッキリと折れていたのでどうしようもないですね

最近の製品なので、WindowsPC,iphone15でドライバー入れなくても問題なく再生できるLEDの色を見てると、ハイレゾ再生してるっぽいしょぼいデスクトップスピーカーでもBGM程度なら聴くに耐えるようになったのは驚きと共に収穫でした