Audio Board View; R102/R202; Gain_L/Gain_R; Bass_L/Bass_R - Lehmannaudio Black Cube Statement Manual

Black cube statement high end mm/mc phono stage high precision passive riaa-network

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Audio board view

Here are free slots for custom loads. To activate these loads switches nr. 3 (accessible from

the bottom outside) have to be put into the „on" position. Capacitive or resistive load placed

here will be connected in parallel to all other activated loads at least parallel to the default

load 47k / 100pF.

These jumpers change gain by +10dB. The jumpers are activated by default. Using DIP-

switches Nr. 1 the gain is 30dB (off) and 50dB (on) respectively. If the selected gain is too

high the jumpers can be put off.

These jumpers activate the Soft Bass Rolloff Filter to avoid high energy low frequency trans-

mission that can damage loudspeaker chassis. Corner frequency of this filter is app. 60 Hz,

attenuation is 6dB/Oct. The jumpers are not activated as default.

4. DC_L/DC_R

By actiation of these jumpers the output capacitors are bridged. The DC jumpers are not

activated as default.

WARNING: When the output capacitors are bridged there can be DC offset voltage pre-

sent at the Black Cube Statement's output connectors. Please make sure that the following

input stage is AC-coupled before activating the DC jumpers. If you do not know the coupling

status of the next following input stage have your setup checked by a dealer or avoid to use

this jumper. DC at the output stage of a power amplifier can destroy loudspeaker chassis!

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