Installation / Setup - Lehmannaudio Black Cube Linear Pro Bedienungsanleitung

Installation
Place the device on a clean and flat work space,
or mount it with the assembly brackets.
Take care to position the unit away from
sources of strong magnetic fields and from
digital equipment i.e. Speakers, power amps
transformers mobile phones etc.
Ensure there is enough ventilation.
Power supply / mains
Before connecting to power outlet check the
local mains voltage. It has to be 0V/50Hz.
Switch-On
Make sure that the level is reduced while
switching on and off. So you avoid interfer-
ences caused by peaks.
Heat up
After 5 minutes of warming up, you're ready to
go.
Starting up / Setup
18
Black Cube Linear Pro
Adjustment to your headphone
You can easily adjust the maximum gain of
the Black Cube Linear Pro to use any available
headphone with best results independent from
efficiency or impedance. The gain setting has
direct effect on the active gain of the input
stage.
The standard signal level for the Black Cube
Linear Pro is +dBu.
It is recommended that you choose a setting
which, at the maximum potentiometer posi-
tion (turned clockwise), results in a volume
level that is slightly higher than your normal
listening habit. So that you have a small buffer
for lower level signals and the rotary knob is in
its best operating range. You also ensure that
extraordinary high levels are avoided.
The position of the volume knob at „normal"
listening power should be around 15 hours. Us-
ing a basic setup with a „9 hours" position and a
gain of more than 0 dB is not recommended.
Setting up the DIP switches:
(Bottom side)
Gain Switch 1 Switch 2
0 dB OFF OFF
10 dB ON OFF
18 dB OFF ON
20 dB ON ON
Gain setup is done for each channel separately.
Don't forget to use the same setup for both
channels. Otherwise you will hear a strange
stereo panorama.
Note: Do not change the gain setting while
listening! This is to avoid sudden peaks that
might damage your headphones or even your
hearing!
Lehmannaudio