I was the first one to own a Stealth Tera Player for almost 5 years. I don't comment on it as I'm a low volume casual hobbyist and my memory is not so good these days.
I also was one of the first to rockbox 1G iPod and iRiver before FLAC became a thing.
I do miss the remote. I don't understand why we don't have nice remotes nowadays. finally have a nice1 in iPeng on iPhone now.
First to own a CIEM living in Asia (Hong Kong) in early 2000s. Asia CIEM ownership has skyrocketed since then..
For general purpose I considered a PecanPi R2R @$225. I should be able to request the XLR to be removed.
https://www.audiosciencereview.com/...eneration-raspberry-pi-dac-and-streamer.6952/
The problem is it wants 9V. I figured out later I maybe able to use this 9V booster cable w/ a battery pack:
https://www.adafruit.com/product/2777
Single ended output impedance: 0.050 ohm via RCAs. No amp needed.
I also considered Soekris dac1101 R2R:
I should be able to build my own dap with wireless UI with both.
I seriously considered the Attraction R2R DAC at one time before Chord arrived on the scene...
Unfortunately, I'm near the finish line in this hobby and don't have the energy to experiment with R2R anymore. I handed in my two week's notice here. I'm just going to upgrade mobile Chord DACs going forward until the tech reaches DAVE territory in the future.
My final project is soundproofing dampening utilising car audio MLV, CCF, CLD,etc. CIEMs provide -26db isolation. I want more, I want near sound proof to get rid of ambient/white noise so going to experiement on sound isolation around the head/ear area: