jwillans wrote:To close the loop on this - the SMSL sApII TPA6120A2 is outstanding. I cannot imagine a headphone amplifier with a better quality sound - and it works well with the K712 which are notoriously power hungry ,
I totally agree and really like what I hear with mine as well. I have noticed an all over "effect" of a sensation of the low notes down to the soles of my feet without the need for a butt kicker. I, too, highly recommend the K712 headphone along with the SMSL sApII TPA6120A2 headphone amplifier.
Had a friend give a listen and while listening to a live concert, I noticed him looking around. He said later he heard people (in the audience) making slight noises, coughing or just moving around slightly as if they were right there in our music room. As in realism big time.