Something in the audio, you should decide the sound to begin with? I think to be a speaker (headphone / earphone) and sound source, the answer.
The amplifier, "to drive closely so as to accept obediently the sound source, it is possible to demonstrate the ability of the speaker" thing. It is not the thing to pleasant sound by changing the tone in any way.
Currently, the evolution of techniques and equipment to enhance sound source hi-res, hi-res player, and high-performance DAC, the quality of the sound source There are progressing significantly. I believe that ought HA-11 Under such circumstances, the amplifier is called ', devoted to it to take advantage of the sound source. Headphone to pursue a sound unique technologies and evolving, when to the earphone, considering the amplifier as a partner and best basic forever, it's sought without exaggeration or coloring, and maximize the performance of the headphone / earphone It is an amplifier of honest sound quality to bring out, it is where the goals of HA-11.
The HA-11, and has a driving capability to fully use the capacity of high-performance headphones / earphones for it. While operating the circuit at a sufficiently high voltage of 18V or 9V, and high voltage drive by the high-precision high-output buffer amplifier, it features capable of driving current supply capacity even at low impedance.
When you listen to the HA-11, If you feel the sound is powerful than before it, to say that strength headphones originally has has been drawn to it. If you feel soft, it's delicate, it is to say that the headphones have a good performance like that.
HA-11 should make me stand out more, the personality of the sound of your favorite headphones / earphones you.