HiAudio
100+ Head-Fier
- Joined
- Dec 9, 2011
- Posts
- 250
- Likes
- 20
I have these two and love both and use NuForce icon HDP to power them. I haven't made extensive comparison and I am not really good at comparing those. The only difference I can tell now is the decay on K712 seems better and K712 also sounds louder at same volume level on the amp due to its low impedance. The HD650 may sound better for piano music. I am not sure how good or bad the NuForce drive them and the role it played in the sound. Do some also have the two? Please share what you think.