The DAC in DAC-10H is similar to IDA-16, but it is not like we remove the amp and then packaged it as a DAC. A lot of work has gone into improving the performance for preamp, lower the noise, power supply, and headphone amp. If you have a high-end speaker and headphones, then it is worth getting DAC-10H with ST-10.
Thanks for posting, Jason
I have no speakers and never was interested in them, I am currently using speaker amp Krell KAV-400xi with HE-6, recently had a chance to try IDA-16, at my home for few hrs. However I was able to audition only the amp section, as dac driver did not install on my Win8 laptop
I really did like IDA-16 as amp, transparency was awesome. I am not keen on other headphones, if I get IDA-16, will using only with HE-6 directly from speaker tabs.
As I will be using IDA-16 only with HE-6 do you suggest IDA-16 or ST-10.