The each polarity signal produced by AK4396 goes to 2 dual opamps (U8
for left, U10 for right) In those dual opamps, each opamp handles only
one polarity, either positive signal or negative. Then both
exclusively amplified positive and negative signals are re-assembled and goes
to another opamps (U9 for left, U11 for right) for second amplification.
In the second dual opamp, U9, The one opamp is for left headphone and
the other is for left RCA output. In U11, one opamp is for right headphone
and the other is for right RCA output.
This design maximizes the
feature of AK4396DAC and it also dramatically improves stereo-talk.
It is recommended to swap all four opamps for your
preferred analog sound
color. Factory installed opamps are 4580
If you choose to swap only two, they must be U8 & U10 ( They are marked on PCB of Claro halo)
If you need more information please email to us; firstname.lastname@example.org
to FAQ page >>