Asus Xonar Essence STU User Manual page 7

Variable resistor calibration
Convenient tool for checking right/left balance
Dedicated variable resistors
are designed for left/right
channel calibration of speakers
or headphones. Users can
tune them to find balance
levels they prefer.
※ How to calibrate resistors and check balance?
 Clockwise rotation: higher volume
 Counter clockwise rotation: lower volume
Turn the screw
◣
on the resistor by
using a flathead
screwdriver.
Variable resistor for RCA‐
out (right channel)
Variable resistor for HP‐out (left channel)
Post‐calibration,
◣
you can use a
multimeter to
check if the output
voltage of the
right/left channels
is balanced.