The sound is still great but thinking long term in Australia heat I think calyx m life span will decrease considering how hot it gets.It's winter here so it's okay now but things will be quiet different summer.
On a more related note the P1 is expected to be released by end of the months in Australia by minidisc. I hope they can have some amazing bundle deals. Looking forward to hearing how it compare against calyx m and ak120.
I think it is the world of compromise our hobby, at least for now. I am sure in 20-30 years things will look so different but right now we just got to give up on certain things.
For me a great sound was essential but than I needed an easy to navigate device with modest storage. M offers the last two and soundwise I will compromise by using the gears that pairs best with it and with the rest I need to use an amp for it.
I am now curious on whether I should send my AK120 for modification. Shipping batteries operated devices from Australia is pain, postage is also not cheap and the risk of me not liking is high. What I am trying to say is it be nice if a seller locally caries this modded version but I doubt anyone would want to carry a modded anything here or anywhere.