Lehmannaudio Black Cube Statement High End MM/MC Phono Stage High Precision Passive RIAA-Network Manual
Valued customer, Congratulations for buying the Lehmannaudio Black Cube Statement phono RIAA preamplifier. The Black Cube Statement is manufactured in Germany using very high quality components and carefully constructed to give you many years of musical pleasure. This unit is made only for being inserted between a turntable‘s passive cartridge output and any audio amplifier‘s high level input.
fear a lightning hit and the Black Cube Statement has been connected to an AC outlet, do not touch the power supply. Otherwise you may receive an electrical shock. - Do not attempt to modify this equipment. Otherwise, fire or electrical shock may result. Warranty is void on modified devices. Exceptions: dip switch settings and fitting of custom input load. If you feel uncertain about how to set up your unit properly consult your dealer.
Description The passive filter network of the Black Cube Statement is located between two linear active amplifier stages. Phase errors that occur due to active filter designs are thereby eliminated. Low-loss, high precision WIMA foil capacitors in the filter network are responsible for very good localization and soundstage reproduction. Sensitivity for 775mV/eff. output voltage: 0,77mV/7,7mV switchable on board (MC/MM).
Input side (simplified) 1. Ground connection (GND) If your turntable has a separate ground cable you should connect it here. You can connect any of - 4mm plugs - open ends - cable shoes 2. Signal input conectors (IN) Please connect your tuntable´s output here. To minimize loss in the interconnect use the shortest possible cable between tonearm and the Black Cube Statement. Be careful to preserve correct channel connections – left to left and right to right.
Output side (simplified) 1. Audio outputs (OUT) RIAA-filtered high-level output. Please connect your output cables to the line input to be used. For example, to a line-level preamplifier, active loudspeakers with volume control or power amplifier input with volume control. Be careful to preserve correct channel connections – left to left and right to right.
Matching of gain and input load You can change input impedance (resistive loading) and gain by using the onboard DIPswitches for each channel separately. These switches are accessible from the bottom of the unit. Input capacitance is always 100pF. You may change the setting of the switches with the Black Cube Statement connected to mains voltage and even to your stereo system however in that case please first turn your volume knob to the minimum position because loud pops could occur during switching.
Audio board view 4 2 3 1 1. R102/R202 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. 2. Gain_L/Gain_R These jumpers change gain by +10dB. The jumpers are activated by default. Using DIPswitches Nr. 1 the gain is 30dB (off) and 50dB (on) respectively.
Common settings sensitivity / load switch Nr. 1 2 3 4 ON (MC)500µV 1K free Gain = 61dB (for custom load) 100R OFF (MM)5mV Gain = 41dB / / / The Black Cube Statement supplies practically unlimited load adaption for practically every cartridge on the market. The high maximum gain of 66dB for MC cartridges makes sure that even very low output cartridges can be used with satisfactory results.
Notes Manufacturer‘s address: Lehmannaudio Vertriebs GmbH Richard Zanders Str. 54 D-51469 Bergisch Gladbach Germany phone: +49 2202 280 6240 fax: +49 2202 280 6239 email: info@lehmannaudio.de Web: www.lehmannaudio.
