Lehmannaudio Black Cube II – Black Phono preamp

Lehmann Audio - Black Cube II at a glance

The Black Cube II combines the best features of Lehmann Audio's ever-popular Black Cube phono preamplifier series. The proven quality of the classic Black Cube has been optimized in the Black Cube II with even higher quality connectors and a prestigious housing. The Black Cube II is compatible with virtually all MM and MC systems available on the market, represents the entire sound spectrum of the original recordings, and its incomparable dynamics makes old and new recordings appear in a completely different light.

The passive RIAA filter network of the Lehmann Audio - Black Cube II is located between two amplification stages and is realized by high-quality, impulse-resistant polypropylene film capacitors with a narrow tolerance. As a result, this phono preamplifier offers an impressive, unadulterated sound image of the upper equipment class, at an attractive price. Professional input stages of the latest generation ensure low-noise, precise and powerful reproduction. Furthermore, additional assemblies, for effective hum, RF and noise voltage suppression are located in the audio section and its double-sided audio board allows optimized conductor routing for interference-free operation.

Lehmann Audio - Black Cube II - Technical data:

Sensitivity for output level, 775 mV/0 dB (with activated high-gain switch)

• MM: 3.8 mV/1 kHz
• MC: 0.38 mV/1 kHz

Gain 1 kHz

• MM: 46 dB
• MC: 66 dB

Maximum input level

• MM: 45 mV
• MC: 4.5 mV

Signal to noise ratio (effective unweighted)

• MM: 71 dB
• MC: 63 dB

Gain

• 36 dB, 46 dB, 56 dB, 66 dB

Channel separation

• greater than 85 dB at 10 kHz

Input impedance

• 47 kOhm, 1 kOhm, 100 Ohm
• 1 x select impedance
• 1 x hardwire slot

Output impedance

• 47 Ohm

Input capacitance

• 100 pF

Channel imbalance

• typ. 0,5 dB

Bass filter

• 16 settings between 7Hz and approx. 90 Hz

Power consumption

• less than 3 W

Mains voltage

• 240 V AC