SYBA Sonic USB 24 Bit 96 KHz DAC Digital to Analog Headphone Amplifier 2 Stage EQ Digital/Coaxial Output and RCA Output, SD-DAC63057

Fantastic item. I could hear my GPU churning away when using headphones with my PC. Now using this it's pure silence. Sound quality seems great. The only thing I'd wish for is USB-C instead of Mini-USB, but at least it's not Micro-USB.

So far working great, using it with my Beyerdynamic DT 770 Pro 80 Limited Edition and it sounds amazing.

The build quality of the DAC is as expected for the price, it’s okay but it’s not great. The dial feels average and the switch feels average too.The loudness is good with lower impedance headphones but if you have, for example, the Sennheiser HD600s, you’ll notice the volume isn’t adequate. The sound quality is good too, but it won’t compete with more expensive options such as Fiio. When I had just bought this DAC, everything was fine. However, after 3 to 4 weeks, a buzzing noise started. This buzzing comes after 2-3 hours of constant use.I may have a defective unit but it speaks to the quality control of the product.On the positive, with my Philips SHP-9600s, the volume can get very high.Also, there is a good amount of ports for 5.2mm, 3.5mm and microphones.In conclusion, this is actually a good buy for the money, since good quality DACs tend to be much more expensive. However, more expensive higher impedance headphones will not work well with this DAC, since it has a low power limit. But if you have expensive headphones, it’s likely you can afford a better DAC.

I bought this DAC/AMP to power some new studio monitors (Mackie CR3's) and some new headphones (Sennheiser HD559). I needed a device with RCA out and a 6.3mm jack for the headphones (The sennheisers only have a 6.3mm cable included in the box...).The DAC/AMP powers both of these devices amazingly, albeit the headphones are only 50 ohm impedance.All the necessary cables are included in the box - which is great*. The RCA cables are actually really good quality for a cable bundled with an item.What I liked about the item:1: Multiple options for inputs and outputs: USB In (The DAC), 3.5mm Line-in, 3.5mm Microphone in. 6.3mm jack output, 3.5mm jack output, Digital Coax out, Digital Optical out, Line-outs (RCA**).2: Supports from 44.1Khz to 96Khz sample rate, A nice volume control on the top of the unit.3: Built in equalizer: 3 settings, TDB. T = Treble Boost, D Direct (no EQ), B = Bass Boost (+6db...)What I didn't like about the item:1: *The cables: The included USB cable is not good. Its a bit short and threw up an error with my PC. Windows was saying an issue with power draw. Swapped to a different cable and it worked fine.2: **The outputs: While I said I liked them, there is a little issue. Those RCA Line-outs? They are not Line-outs (even though they are labeled line-outs)... They are actually Pre-outs. What does that mean? A Line-out typically used a fixed signal voltage and is not affected by volume control. A Pre-out is affect by volume control. Not the end of the world, but does make things a little complicated. Unless you have powered speakers, you have to physically unplug them from the device to stop the audio going to both the headphones and the speakers. (a simple 3-way switch could have fixed this - speaker output, headphone output, both output).3: This build quality: while solid, it is quite plastic-y feeling and quite light. But then again at this price, you can't really expect any more.Overall, a really good product, but has its flaws - but for the price, those flaws are really easy to look past. It i a great unit, does what it says it will (mostly). And its made by SybaSonic (one of the big names when it comes to DAC/AMPs in Audio - even if you don't know them, you probably know of devices that have originally been designed by them, so they know what they are doing).If you are looking for a cheap all-in-one solution for a DAC/AMP - buy this device.

Ok, I've only had this headphone dac for a few days but I felt I had to write something soon before I forget . For £30 , this is superb value . Set up is an absolute breeze of course and once it has been run-in for a little while ..wow .Let's understand , we are not reviewing a £200 Schiit or a £300+Cambridge audio dac-Magic here , this is a cheap unit , but it certainly doesn't sound it . My sound card output was woeful , low volume output , no life to the music and only good for monitoring .. I use external audio gear for ' proper ' listening ..till I got this !Now I feel I just can't stop my listening sessions on the PC , stretched out on recliner chair like a lazy sod ..This little headphone/ dac / increases volume by a significant amount and more importantly , brings some life to my music ..the well recorded tracks sing out , I can separate instruments , there is sense of space and time , a depth and added bass notes that may have been present in my old sound card , but I never noticed them .I'm actually enjoying music on PC again instead of it being just background filler , and guess what ...it has an digital optical ( toslink ) out connection and a digital co-ax out too ..how many much higher priced dac-headphone amps have these , very few ? ( I checked ) . You can then use powered monitors with this device if it has these inputs ..how great is that ?OK ,it's not going to replace a ' proper ' amp, or higher priced Dac/Headphone combi any time soon , but believe me , this little gem is worth every single penny of that £30 spent . If you're on the fence , don't want to spend big , give this a try first , you'll be glad you did .Five stars for me for the sheer value for money alone .