Expert Notes - Lehmannaudio Black Cube Bedienungsanleitung

42 Black Cube Statement

Expert notes

EN
The Black Cube Statement can be adapted to virtually all sys-
tems available on the market.
With the exception of the DIP switches, the adjustment mechanisms are located
inside the device and should only be changed by experts. An Allen key to open the
housing and Jumpers to change the amplification are included with the device.
Interior view
Output 1
LED 1
RCA 3
DC 1
Gain_1
Bass_1
ON
1 2 3
Input 1
RCA 1
Output 2
RCA 4
DC 2
Gain_2
Bass_2
R 102 R 202
ON
4 1 2 3 4
Input 2
RCA 2
1 | DC 1/DC 2
The MKP output capacitors are bridged with these Jumpers so they are no
longer in the signal path. These Jumpers are not activated at delivery.
ATTENTION!
When output capacitors are bridged, there may be DC voltage
on the outputs. Before activating these Jumpers, it is therefore
necessary to ensure that the downstream input stage has a DC
voltage input filter since DC voltage can damage the speakers. In
case of doubt, have your system checked by the dealer first.
2 | Gain_L/Gain_R
These Jumpers change the amplification by +10 dB and are activated at delivery.
With the DIP switches accessible on the bottom of the device (respectively no.
1), you can switch the gain between 41 dB (MM) and 61 dB (MC). You can remove
the Jumpers if this amplification is too high.
1
2
3 | Bass_L/Bass_R
3
These Jumpers activate the soft bass roll-off filter to prevent membrane flutter
when playing back warped records. The cut-off frequency is 50 Hz,
the filter slope is 6 dB/oct. These Jumpers are not activated at delivery.
4 | R102/R202
Available custom impedance plug connections for activation with the DIP switch-
es for the channels (respectively no. 3). An impedance/capacity activated here is
switched in parallel to all other impedances/capacities activated by switches and
4
the 47 kOhm/100 pF.
Black Cube Statement 43
EN