SMSL DP3 HIFI Bluetooth Music Player Balanced Headphone Amplifier DSD256 Apt-X 2.4G/5G Wifi The SMSL DP3 has a rich collection of features that include a decent set of connectivity and network support, as well as HiBy Link so you can control the player via an Android device. Headphone out includes a balanced, 4 pin XLR jack along with a 6.3mm single ended one. Output impedance for the headphone jacks seems to be quite high, so you would need an attenuator for use with IEMs or other sensitive headphones. Input connections are geared for a network environment and include: 100BASE-TX LAN port, wifi, bluetooth dual way transmission, Micro SD card, and 2 USB ports for what looks to be HDD storage, along with the pair of headphone jacks. Outputs include micro USB, optical, coaxial, AES and RCA. Shame there isn't balanced XLR outputs, and there seems to be no way to connect this to a source such as a computer via optical, coax or USB input as all those options are outputs in the DP3, so the primary utility is for media streaming and playback. Control directly on the device looks centered around the jog dial and screen. Unsure how usable this is going to be but it's nice that its there. As a standalone device or paired with a large hard drive or NAS, it does have the potential to be an all-in-one connected solution for any room or office. Throw in a couple powered monitors and it becomes a quasi-integrated amp solution, perfect for small room listening or workstation environments. Current pricing on sites like Aliexpress, Ebay and Amazon peg it at $279 USD. Interested to see if this will hit Massdrop anytime soon, as for the price I would be tempted to roll the dice as I have an environment that could utilize one. This is looking to be a good all-in-one candidate for my workplace desktop rig, and it seems to be quite affordable if you're pushing mid-fi cans. From a feature set perspective, I just wish it had more DAC I/O functionality. I recently picked up the HE4xx during the last drop and I'm hoping it will pair acceptably with the DP3. Besides the convenience of connectivity and storage support should enable it to function in a number of usecases... but how does it sound?! I'll add links to member reviews as they come in. Also made a Head Gear page so please share you impressions and reviews. I'll try to update this post as more info comes in.