HA15 HEADPHONE AMP
Hafler
5
The Focus control is a carefully managed matrix that combines the discrete
left and right signals with a ‘left-right mix’ to simulate the effect of listening
to loudspeakers in a room. As you increase the effect by turning the Focus
control clockwise, you can decide how much of the music from each side is
mixed to the center, creating a much more realistic rendering. Once you try
it, you will find yourself setting the center Focus differently as you change
the music source.
Start with the Focus control fully counter-clockwise. Depress the Focus
switch to turn it on. You will likely hear an increase in level. This is normal
as you are now multiplying the signals together in the matrix. Simply back
down the HA15 volume control to compensate. Slowly turn the Focus
clockwise until you find the sweet spot. Try turning off the Focus effect
to compare. Listen carefully and you will notice that the stereo image is
maintained. This sets the Focus apart from others that try to simulate the
effect using a simple stereo-to-mono mix.
Now sit back and enjoy. You are about to hear music in your headphones
with more clarity, realism and dynamics than ever before.
Listening with headphones
Narrow field
Listening with speakers
Wide field
