1Mii DS600 USB DAC HiFi, Bluetooth Receiver for Home Stereo LDAC AptX HD, Headphone Amp, Bluetooth Audio Adapter 3.5mm AUX/RCA Output DSD512 Dual ES9038Q2M XMOS for AV Receiver or Amplifier

Heard an improvement through my speakers, but nothing dramatic. Added clarity and definition across the sound spectrum. I don't use surround sound (too fussy and not suitable in small rooms without lots of work on speaker placement) and have stereo for music and movies. Made my subwoofer output cleaner and improved dialog. Performance is good for the price, Bluetooth gets a sonic bump, headphone amp will drive most units unless they're very high impedence. Main gripe is that my Roku and amp clickers change its input mode and makes the sound stop - annoying. Covered the front and cured that. Otherwise, it's fine for the bucks and can recommend it.

Excellent well defined sound output, with tight lows and airy, defined highs, overall excellent separation of various music styles. Used separately with two systems, one a Mac bookshelf spk./sub sys. and and an audiophile system: Adcom amp, Apt Holman pre-amp, AR90 speakers, both streaming Amazon HD Music through an LDAC enabled smartphone. The DS600 has made a dramatic difference in music clarity and definition in sound quality, especially on the "small" Mac system, originally output through the headphone jack only. Bluetooth (5.0) is convenient, with no noticeable degradation of sound output. Appreciate the small form factor, high quality components, reasonable price, and excellent sound output. I have not used the headphone output. The remote in a smaller form factor would be better.

The DS600 performs very well, easy to setup and use. The richness of the sound quality improvement is clearly evident. I use the coax input from a Grace Digital internet tuner and Bluetooth from my phone on Amazon- HD and the sound quality is a major improvement on my 2-ch office setup. I have yet to use the USB or optical inputs in detail but will in the near future. Very satisfied with this device's impact on the audio quality.Also, almost as important has been the vendor's support. The 1Mii team is very prompt an responsive via email on technical questions regarding I had regarding the best setup. Satisfied with this purchase. Four and a half stars - the included documentation and website is fair yet could use some setup questions improvement.

This has to be the fastest and easiest Bluetooth setup I’ve ever had. The sound quality is decent also. I would rate it as “Near CD Quality.”

Years ago I bought a cheap DAC just to convert optical out to my headphones. Now I'm going to build a new sound system and started with this DAC. So far, it's doing everything advertised. I can't analyse the distortion, but I don't think I can get anything cleaner so more than good enough.The new headphone jack had a little problem where I had to jiggle the connector around, but my final use is only for the audio outputs so I wasn't going to deduct a point.I used the USB, optical, and BT inputs and all worked very well. I connected the output to some powered speakers and the sound was excellent.Edit: A lot has changed since I first bought this DAC. I ended up buying The Topping E50 DAC and PA5 AMP since I built a pair of fairly high end speakers. I have learned a lot about audio since my first entry in the audiofile world and the DS600.Well the DS600 sat around mostly unused except when using headphones. So I didn't totally like wasting money so I bought the Aiyama A07 AMP and did an A/B comparison of my Topping SET. I was totally blown away by the sound of this DAC and AMP. I couldn't even tell the difference between the much more expensive 'high end' Topping.Even better than the Topping is that I can connect my Pixel 6 through Bluetooth using LDAC so I am able to take advantage of the high resolution Amazon Music HD. That is a huge advantage over using either the optical or USB inputs and I honestly can't hear the difference between wired vs wireless.

Sound quality is suffering. Don't waste your money. I end up getting a Topping D50.

For what I use it, is perfect. It’s basically where my headphones are plugged in all the time now, and it’s always connected to my PC via USB, so it’s really easy to switch between my computer and my iPhone (connected via Bluetooth) real quick whenever I want to listen to something from either of those sources.I have the Sony MDR-Z7M2, which are not super high end, but quite above average and this little device is capable of making them show off their full capacity.I’m totally satisfied with this product.

Does not Work At All on RCA jacks,... Do Not Purchase if you intend to use this on RCA cable. The Instruction Manual Is TOTALLY Worthless,...says to FIRST, download driver, but gives NO Instruction on where or how to download any driver. The listing AD for this unit is far overrated.The display on the unit powered up does not even list the RCA Outputs as an option to select,... What a Joke!My advise is to find a unit from a manufacturer that speaks English and has some technical expertise! 1mii seems to have none!

Zuerst gekauft als Weihnachtsgeschenk.In Folie verschweisst geliefert. Leider Gebrauchtgerät. Zerknitterte Tüten, keine Original Kabelbinder, Fingerabdrücke.Gerät wurde mit 45 Euro Gutschein beworben.Enttäuscht nach Weihnachten zurückgesendet.Diese Woche erneut gekauft. Wieder mit 45 Euro Gutschein. Gerät ist zwar etwas dünn auf der Brust wenn über hochohmigen (250 Ohm) Kopfhörer gehört wird, aber für den Hauptanwendungsfall (volumio mit Raspberry an Stereoanlage) schon ausreichend gut geeignet.Gerät wieder verschweißt geliefert. Nach dem Entfernen der Folie wieder gebrauchtes Gerät. Verpackung zerknickt, Finerabdrücke, Zubehör teilweise lose! in der Verpackung.In beiden Fällen Verkäufer YmooDirect-EUR und Versand über Amazon.Dann eben nicht. Gerät ging wieder zurück.Schade. Auch wenn dies weniger eine Rezension des Produkts ist, so ist die Häufigkeit (2 von 2 Sendungen Gebrauchtware die nicht so gekennzeichnet ist) möglicherweise hilfreich bei der Entscheidung für ein anderes Gerät.

Grundsätzlich klanglich sehr gut- Der Produktsupport ist leider sehr schlecht. Mir wurde ein falsches Netzteil geliefert (VersionGroßbritannien). Leider war es nicht möglich (ich glaube auch das Interesse fehlte) eine Kulanzlösung zu finden. Hab es schließlich aufgegeben. Gerät retour. Eigentlich schade !

Die Verarbeitungsqualität ist hoch und die Tonqualität dieses Geräts mag ja ganz ordentlich sein, aber der Kopfhörer-Verstärker der dort eingebaut ist, ist viel zu schwach. Die Lautstärke war sogar geringer als die meines iMacs.