1Mii DS600 Audio DAC HiFi Bluetooth 5.0 Receiver LDAC& AptX HD, USB DAC for PC Headphone Amp 3.5mm, Dual ES9038Q2M XMOS DSD512 32Bit/768Khz, USB/Optical/Coaxial Input, RCA Out for Home Stereo

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.

This is the best purchase I have ever made with regard to improving the quality of my CDs and streaming music.There is a lot of discussion online with regard to what frequencies the human ear can discern and whether or not you are actually markedly benefitting from a lower end external DAC. My only contribution to that back and forth would be this: the bottom line here is that the Lavaudio DS600 works some seriously phenomenal magic on the music you send through it. You are able to hear things in certain recordings you never heard before. For example, I listened to live Fleetwood Mac and was able to hear WHO is singing what part. The DS600 has a way of separating individual voices and instruments that gives the overall sound a level of clarity that has to be heard to be believed.There have been some comments criticizing the headphone out. I would agree that there is a little noise there, and the unit cannot drive more high end headphones, but my Audiotechnica M50x’s do just fine for casual listening.In my opinion, the bang for the buck here is great. If you are on the fence about this unit, I can confidently tell you that it is worth the investment.

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.

Very quiet and better at separating instruments and distances (sound stage) then a SMSL M300 MKII which uses AKM chip. Reason for 4 stars. When using Qobuz, for some reason, occasionally, a song would be playing but no sound and the bit rate display stayed at 44.1 even the song is of higher bit rate. I would close Qobuz and get back in, then it'll play. This does not happen with my M300. Maybe it is just a glitch.Documentation of the filter modes does not exist. I looked up Topping D50S as reference. It is not as if there are big differences in sound quality among these filters anyway. Other than that, it is an enjoyable piece to have.

I described as colored, but might be the preferred sound to many people. I know that I like a brighter sound. It is a moderate quality product and it is milled out of a solid block of aluminum.

Yes, it doesn't have the ultimate transparency/depth of my $3000 DAC. but for the price it is shockingly good. Very good separation/imaging, midrange smooth. Headphone amp is decent (fine for everyday listening) but running the RCA outs into a dedicated amp did show significant gains in space and "slam." Bluetooth worked fine and enabled LDAC on my Android phone. It seems to need a few days to break in (like most good audio components), so don't judge it right away. Very solidly built. Perfect for my intended bedside/work computer use.

audiosciencereview website has an article about this DAC... this one I got is the latest hardware revision (v1.3). Very comparable in sound quality with the Topping E50, minus the balanced outputs... but instead this has a built-in Headphone amp & Bluetooth... but at a much lesser price (after discount coupon). I love it!!

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!