S9 Pro Plus Martha USB C DAC Dongle, Portable DAC AMP, BAL 4.4mm, SE 3.5mm, Volume Control, 6 Filter Option, Support Windows/Mac/Android/iOS System, Blue

It's sounds amazing

I got this to run my computer speakers. I've got a Mac mini and I have a Tidal subscription and I also have a small collection of iPods. He's definitely improved the sound compared to the if I am playing 24-bit 192 kHz on Tidal there are clearly better clarity. Also with Apple Music I like to stream set to ALAC and again I think I can hear a difference if it's a quality engineered recording. You have the ability to toggle through a bunch of filters setting. There it gets hard harder to tell and it really depends on what type of music you're listening to.I think to build qualities is a little disappointing I have a iBasso DC06 and its got it all aluminum construction. the HIDIZS is all plastic. I think that matters because when you're using this as an amp, it's definitely gonna build up some heat and the plastic insulate. Where is the metal would help dissipate to heat. The two buttons are kind of weird. They look like they're supposed to be dials, but you just push them. I don't know why they have textured sides. Also, it's a little confusing toggling through the different filters. It briefly shows one of the six colors and then returns to green.Overall, I think this is a good sound quality and a vast improvement of Mac mini internal dac. I don't have one end over your headphones I just have mid grade in ear monitors so they're not gonna push this amp for me to really confirm the power this thing can produce.I like the idea of being able to change to the different filters. I just wish it was more transparent, and the LED made more sense. I think the size factor is good. It's about the size of a little thumb drive. They can only confirm the functionality for use with a computer, feeding either high-end desktop speakers or in ear monitors. For those two things just definitely function well and the sound quality is definitely improved if you're streaming high bid rate music.

Loudest usb dongle I could find... perfect!

I’m not an audio expert. I use headphones around $700 (won't mention the brand here). To my ears, this dongle sounds pretty much the same as my laptop's built-in sound card, just with a boost in volume. That's about all I noticed. I was hoping for a deeper, richer sound, but the miracle didn't happen. I also didn't really hear any difference between modes - or rather, the difference felt like when you think you've found a sweet spot while tweaking knobs in music production, only to realize later the control wasn't actually active

The audio was great at first. After having it on for about an hour it started making thumping sounds. After maybe 15 minutes of that, the gain dropped to an almost inaudible level. For portable use with high impedance headphones, this may be OK. Once it gets warm, it degrades quickly.edit: The gain drop seems to be a thermal protection feature. I think this DAC would be great for niche cases requiring the ability to drive esoteric in-ear devices, but for general purpose on-ear headphones it doesn't really shine. The case is just too small to dissipate enough heat to keep it running.

I've been using this to drive my mixing monitors at work for about 4 months. It stays powered up 24 hours a day, and is actively being used for about 4-6 hours a day. I can safely say that it's a durable little guy.Sound is great. I haven't noticed any distortion and the balanced connection is great.Not sure how it compares to other dongle dacs, price wise, these days but I think its good quality for the money. If it continues to hold up I might pick up another one for my home office.

Sounds good.I also included a picture of the device and how much power it draws.It does get hot, maybe the chip is using the body as a heat sink. But so far I have not noticed any sound degradation attributes to heat.Buttons are a bit loose and rattle when you move the device or brush your fingers against the buttons.I really like having the volume button on the DAC. I don't like listening to volume equalized audio all the time so this allows for quick adjustments when content gets too loud or too quiet.There are a few filters, I use the Blue one in battlefield 5.And also after you select your bit rate on your computer or other devices. There is a color indicator letting you know what bit rate your content is playing at. Very cool.USB connector does have a correct and incorrect orientation.So far I'm enjoying it.