FiiO BTR15 Headphone Amps Bluetooth 5.1 Receiver High Resolution 384K/32Bit Native DSD256 USB DAC Supports LDAC/aptX HD/MQA for Smartphones/PC/Car/Home Audio (Titanium)

This works fantastic with my Macbook and iPhone. I use it when I travel to run some IEMs and have had zero issues with it. If you have hi-res music files or stream from Tidal or other hi-res services then I would highly recommend this DAC/Amp. Sure running headphones directly out of your PC might sound okay... but if you want more then you'll need something like this. And this was a great place to start.I have not tried the bluetooth mode. I don't think the point of this unit is to use it as a bluetooth receiver, but I am a beginner audio snob, however I'm positive it works just fine.Pros: Simple and starts up quickly. Volume rocker is responsive.Cons: Would like a braided USB-C cable with it. Also, the text showing PC Mode, Phone Mode and Bluetooth is very small and the screen does not always notify properly when switching between modes, BUT the different modes work fine.

I've been an audiophile for many years and I've owned multiple sound equipment where each piece can cost thousands of dollars. I've tested this device with Fiio FH9, Beyerdynamic DT990 Premium and HIFIMAN HE1000 v2 earphones. I've compared it against Fiio X7 player, Fiio BTR7 and my desktop external sound card xDuoo TA-10. The sound quality is very, very high and it's very difficult to find any gaps compared to much more serious and expensive devices. I think 99% of people will not be able to hear the difference between this device and much more expensive devices.I've used this device extensively, every day, multiple hours during my vacation and in the last few weeks. Found 0 issues.I love the case clip, so convenient. I could use the clip to attach it anywhere so I could very quickly to access it to pause, or resume, or change volume, etc.The power output will be enough for all earphones and lower impedance large headphones. It can even be fine for 250-300 Ohm headphones if you don't need a very high volume. It will struggle with 600 Ohm headphones though. The power output is lower than on Fiio BTR7, Fiio BTR17 and much lower than on Fiio X7. But Fiio X7 is a beast that beats many full-size desktop sound cards, so you can't really compare it to Fiio X7. But just for reference.Absolutely love this little device.Highly recommended.

I was looking for a dac/amp to get louder volume on PS5 and while yes this device technically works it is actually a quieter output than if you just drive your headphones with a controller. Per Fiio it is an issue with the USB audio output on the PS5. Other mfgs have been able to bypass this but Fiio doesn't seem interested. If they ever introduce a firmware update I'll update this review. PS5 Pro does not seem to be affected with this usb audio issue(anecdotally).PS5 issues aside I absolutely love this little thing. I work from home and can have it simultaneously connected to my work pc and personal computer/phone via Bluetooth and if I get a call come in from work the device will automatically pause whatever I'm listening to and switch to work call and once the call is over will switch back an unpause the music/video on my personal pc. You can answer and end calls all with the device too.Audio wise the output is very clean. I definitely notice better detail on music than without it. Having the eq options is nice as well. Even though it didn't fit my original planned use for it I am keeping this item as I enjoy it so much for everything else.

I have a btr5 and a qudelix 5K, the btr5 is nice but I love the 5K’s eq. The btr15 was supposed to be an upgrade to the qudelix for me because it also has a parametric EQ but it’s nowhere as good as the 5K.Sound- Both BTRs slightly outperform the qudelix as far as sound quality, the btr15 being the better of the three. On default the btr5 has slightly boosted bass and treble, the btr15 has slightly boosted mid bass and the qudelix has the most neutral flat sound. The btr15 has the cleanest and more textured bass of the three and the best soundstage and imaging. All these differences are very slight so you have to A/B all three to really notice.Btr5 differences- compared to the btr5 this version has a larger screen which is neat but not really necessary. This version also has a mode button which is easier than having to toggle charging off/on in the menu. You also get a 4.4 balanced which I guess is nice if you don’t have a bunch of 2.5 cables like me. The main difference is the EQ. One thing to add is that the position of the buttons is slightly different to the btr5 so the btr5 ddhifi leather case won’t line up on the buttons despite fitting perfectly.EQ/bugs- this is the best upgrade but it’s also why the btr15 is not quite ready. The PEQ does technically work but it’s super buggy. The EQ lets you choose a specific frequency, gain and Q but only for 10 bands and it doesn’t have shelves or anything besides peaks. Adjusting the PEQ is slow and changes are not as noticeable as when using the qudelix.The bugs come when using the EQ outside of Bluetooth , when you select an EQ in phone or pc mode the connection drops. On iPhone using a camera adapter the source will change from btr15 to “btr15 EQ dev kit” this is when the device begins acting weird. When in devkit the btr will have volume issues and sometimes sound issues. The only way I found to get it out of it is to disable the EQ in the menu then Switching to Bluetooth and enabling the EQ through the app. I’m sure this will be fixed in an update but for now this is the main problem the btr15 has besides the possible battery drain issue.Overall this will be a good upgrade to the btr5 once they fix these issues and maybe improve the EQ because the sound is definitely improved. If you prefer a superior EQ then you can’t really beat the qudelix, like I said, the btr15 has the best sound of the three but not by much. The biggest strength of the btr15 will probably be it’s higher power output.

I have been continuously using it almost 24/7 in line with my PC as USB connected. It has been effortless with a noticeable improvement in audio quality.After literal months of 24/7 use and closing on a year since purchase I have had no issues.