Anyone interested in a used Onkyo DAC-HA300?

So I bought myself a set of these fancy Drop Panda headphones second hand off of eBay (for half the new price). They sounded fantastic but I thought "I'll just upgrade the firmware and try out this SoundID thing." I update the firmware and I go through the "preferences" and the "hearing test" and I think "wow this is fancy, it should make my amazing headphones sound even more amazing." Wrong. After the update and setting up "SoundID" now my fancy headphones sound like hot garbage. "Maybe I did it wrong" I thought. So I went through the "preferences" and the "hearing test" again, really carefully, to make sure I did everything as instructed. Still sounds like garbage. Maybe my hearing preferences are just bad? I don't know. All I know is my headphones sounded great right out of the box, but after the SoundID was installed and the profile was uploaded my headphones sounded like trash. So I spent several hours pushing buttons on the terrible app's terrible user interface and...

Shanling MTW300-IPX7 rating, long Battery Life, AptX and touch controls. What more do you expect from a tws?

Really loving these headphones, they just sound airy and clean, My daily drivers are hd800s but I really wanted to get some HiFiMAN and I felt these would be a great entry into their product line...

Memo to Audiophile community: Stop posting boring/uninteresting, repetitious, poorly composed headphone shots. Your cooperation is appreciated.

So I bought myself a set of these fancy Drop Panda headphones second hand off of eBay (for half the new price). They sounded fantastic but I thought "I'll just upgrade the firmware and try out this SoundID thing." I update the firmware and I go through the "preferences" and the "hearing test" and I think "wow this is fancy, it should make my amazing headphones sound even more amazing." Wrong. After the update and setting up "SoundID" now my fancy headphones sound like hot garbage. "Maybe I did it wrong" I thought. So I went through the "preferences" and the "hearing test" again, really carefully, to make sure I did everything as instructed. Still sounds like garbage. Maybe my hearing preferences are just bad? I don't know. All I know is my headphones sounded great right out of the box, but after the SoundID was installed and the profile was uploaded my headphones sounded like trash. So I spent several hours pushing buttons on the terrible app's terrible user interface and...

I live in europe and im new here

I just purchased the Sennheiser 58x and when double checking the transaction tab of the website it shows as cancelled. Also, I tried to change the address (wanting to add additional needed information), but I get the prompt "internal error". Assistance would be greatly appreciated.

So I bought the pc38s which sound amazing compared to all I have used prior, but no matter what I try, I can not get the mic working on my pc! It works fine when plugged into a controller for console, but simply wont on the pc. I own msi ge75 raider, it has two ports, one for headset, one for the mic! The cords that come with the headset are split into two, each is the 3 pin I think (TRS)... Maybe the port on the computer requires 4 pin or what else can I try? Thank you in advance!