User's Manual

headphone amplifier
HA540 MK2
MADE IN USA
Volume
input 1
input 2
Power
Input select
power
HA540 MK2
Headphone
MADE IN USA
headphone amplifier
HA540 MK2
MADE IN USA
Volume
input 1
input 2
Power
Input select
power
HA540 MK2
Headphone
MADE IN USA
Power LED.
Power input is 15
VDC for connec-
tion to the external
Rolls PS27s power
adapter.
RCA's or 1/8"
stereo input for
connection to Ipod
or other line level
device.
Headphone output’s
1/4” Stereo and 1/8”
stereo jack’s for con-
nection to stereo
headphones. Can be
used at the same time.
Hard wired power
switch. When out the
connection from the
power adapter is com-
pletely disconnected.
Adjusts the
level of signal
sent to the
headphones
RCA's for connec-
tion to your CD
player or other line
level device.
This switch
selects between
Channel 1 and 2
inputs.