Hi, I am considering buying this DAP (it would be my first) but I just want to make sure it will work fine for my use case. I will mainly be using Sony WH-1000XM5 Bluetooth headphones with LDAC. I will also use wired headphones from time to time. I plan on converting my entire music library from...

Is there any way to tell if your Meridian Explorer is the first or second version without testing the impedance of the signal? Is there a serial # range that determines what version you have?   I want to buy this from someone secondhand but he's not sure when he picked it up.

I currently have an Apogee Duet DAC/headphone amp and I just purchased the Denon D2000s. Anybody have any experience with these 2 together? Is a separate headphone amp necessary?   From what i've heard, the Duet's headphone amp is decent and preferably should only be used for cans that are...