Lehmannaudio Black Cube Mode D'emploi page 25

48 Black Cube/Black Cube SE
Signal is soft and An MC impedance has
EN
muffled. been selected for an MM
system.
Signal sounds The gain is set too high
distorted. on the Black Cube/Black
Cube SE.
The output of the Black
Cube/Black Cube SE is
connected to the subse-
quent phono input.
The signal sounds The pickup system has
hollow, without
been connected phase-
a proper bass and
reversed.
localisation.
Audible hum.
The tonearm ground is
not connected on the
Black Cube/Black Cube SE.
Several connected devices
create a ground loop.
There is an interference
caused by some other
power consumer.
Deactivate all MC impedances
via DIP switch. Also watch out
for a custom impedance that
may be plugged in.
Lower the gain factor according
to this user manual by means of
the DIP switches located on the
bottom side of the Black Cube/
Black Cube SE and/or disable the
gain jumpers.
Connect the output of the
Black Cube/Black Cube SE to
a line input on the following
amp.
Connect the system cable
in-phase.
Connect the tonearm ground
on the Black Cube/Black Cube
SE.
Make a correct grounding con-
nection. If required, consult an
electrician.
One by one, disconnect all
devices connected to the same
electric circuit and listen to the
effect. Keep the interfering
device turned off during music
listening or use a mains filter to
connect it to the electric circuit.
Audible hum. The mains transformer of
a device placed nearby is
causing interference at
the input.
Radio interfer- The tonearm ground is
ence audible in not connected on the
the background. Black Cube/Black Cube
SE.
The standard input
capacitance (100 pF) is
too low for MC.
If a problem cannot be remedied with the help of this summary, please contact
the specialist retailer where you purchased the device. If this is not possible, you
can easily find another competent dealer in your area with the dealer search at
www.lehmannaudio.com/service/dealers.
Black Cube/Black Cube SE 49
Make sure the distance
EN
between your hifi chain and
interfering devices is sufficient.
Connect the tonearm ground
on the Black Cube/Black Cube
SE.
See your dealer to have the
custom impedance plug-in
slot fitted with an additional
capacitance.