I was late to the party with DAPs and have had 2 of them over the last couple of years which I am very pleased with and amazed at how well they properly drive my different headphones.
First was the Fiio M11ESS which served me for a couple of years until upgraditis kicked in and I decided to bite the bullet and go for the Fiio M15S plus the DK1 Pro Dock, which is a very neat charging stand that has 2 extra USB ports plus a control to switch charging mode on/off, very neat and I preferred it to the included charging stand with cooling fan that is supplied with the M15S as the unit only runs warm-ish when you use the convert everything to DSD function - which I never use.
As always, both units were/are of excellent build quality and performance but the M15S proved to be a huge upgrade supporting Roon, 2.5mm balanced, 3.5mm SE and 4.4mm balanced outputs, 1.2Watts, femtosecond crystal oscillators, digital output, two way Bluetooth capable of LDAC + Aptx HD etc. etc. It also deviated from their normal angular case design with a very pleasing smooth curved edge design and had a proper rotary volume control. Of course it sounds superb and not nearly as "digital" as most of their range!
Trouble is due to various factors I now listen almost exclusively to music in my "man cave" using the Eversolo DMP-A6, Fiio K13 R2R and Topping L70 amp and it seems a waste to have the M15S sitting in its box and with very little to zero use! You never know - one day 😊
Thinking about it, if anyone is interested then PM me - it would probably appreciate a good home!