มาแล้วครับ AK100 V2.10 ที่สามารถใช้ USB-DAC ได้เหมือน AK120
[Warning]
Before firmware upgrade :
1. Make sure of your AK100’s battery level at least over 80%.
2. Make sure of your AK100’s memory size at least over 50 MB.
3. Don't remove the connection between PC & AK100 while transferring hex data.
[Newly Added function]
1. USB DAC (the same as AK120’s)
Link
http://www.iriverinc.com/download/downloadView.asp?selectPart=cateCode&findWord=02&sno=1079&page=1&cateCode=02