Lehmann Black Cube Decade

The first true twin box Phono stage from Lehamnn.
Availability: In stock
Manufacturer: Lehmann
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£1,400.00

At the High End show in Munich 2005, Lehmann audio announced the release of a new phono stage, named Decade, to celebrate the first decade of Black Cube phono stages and to effectively fill the huge gap between the company‘s own Black Cube SE and the Silver Cube reference phono stage. The Decade is the top model of the Black Cube series of phono stages.

Key Features:

Audio Section:

  • The input stages used in the Decade can also be found in top notch mixing consoles or in well known professional microphone preamps.
  • The passive filter network between two linear gain stages realized with precision MKP caps
  • Several resistive and capacitive load options as standard
  • Front switchable gain (36dB - 66dB) and soft bass rollof
  • Onboard slot for custom impedance
  • Zero global feedback Class A output stage technically identical with Black Cube Linear
  • High quality gold plated pcb mount RCA connectors for audio
  • High quality double sided printed circuit board for optimal signal routing
  • Neutrik connector with gold plated contacts for supply connection (as Silver Cube)
  • Faceplate anodized aluminium in either black or silver finish

PWX II Power Supply:

  • Power supply outlets for two audio devices
  • 30 VA toroidal transformer of the PWX II power supply is a key component for the sonic performance achieved with the Black Cube Decade. This transformer is not only over dimensioned but sports a grounded isolation coil between the primary and secondary coil. 
  • Neutrik connectors with gold plated contacts for supply connection (as Silver Cube)
  • Downward compatible with PWX. Black Cube SE audio sections can be connected.
  • High quality double sided printed circuit board for optimal signal routing
  • Faceplate anodized aluminium in either black or silver finish

Technical Data:

Input Stage: Dual-Mono Microphone Preamp Chip, Newest Generation
Sensitivity for Output Level 775 mV/ 0 dB: MM: 3.8 mV/1 kHz
MC: 0.38 mV/1 kHz
Max Input Level (1 kHz):  MM: 45 mV
MC: 4.5 mV 
Gain Settings: 36dB, 46dB, 56dB, 66dB
Max. Gain: 66dB
Signal to Noise Ratio (RMS Unweighted):  MM: 78 dB
MC: 69 dB 
Channel Separation:  > 80 dB at 10 kHz 
Internal Impedances: 47kΩ, 1kΩ, 100Ω (Selectable)
Custom Impedance: Yes, Via Onboard Slot
Output Impedance: 
Input Capacitance : 47 pF to 1,370 pF
Soft Bass Roll-off Filter: Yes - Toggle Switch On Face Plate
High Gain: Yes - Toggle Switch On Face Plate
RIAA Filter Caps: MKP
Bass Coupling After RIAA: MKP
Second Gain Stage:

Dual Mono
Burr Brown OPA 134
Discrete Output Buffer Zero Global Feedback: Yes (Bipolar Class A) 
Bass Filter:  50 Hz, 6 dB/oct. 
Power Consumption:  App 13VA 
Dimensions:  Decade: 110 x 280 x 50mm
PSU: 110 x 280 x 50mm 
Weight:  Decade: 0.87kg
PSU: 1.56kg
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