Lehmannaudio has built a reputation and
unrivalled customer satisfaction on the sound
and build quality of its phono stages.
The ambitious Black Cube Decade effectively
fills the gap between the Black Cube SE and
the Lehmannaudio reference phono stage, the
Silver Cube. In the Black Cube Decade , like
in all Lehmannaudio devices, top notch technology
is used that normally can be found only
in price ranges far above.
The input stages of the Black Cube Decade
can also be found in top notch mixing consoles
and high class microphone preamps of professional
studio electronics. The highly accurate,
passive RIAA equalisation network is placed
between two linear gain stages and uses precision
MKP capacitors. This results in a very
stable soundstage reproduction and pin point
localisation of instruments.
The maximum gain of 66dB is well enough for
even very exotic low output MC cartridges. Impedance
load adaption is practically infinite as
with all Lehmannaudio phono stages: there is
a free slot for a custom impedance so that every
existing MC cartridge on the market can be
loaded properly. Input capacitances are adjustable
as well.
The Black Cube Decade offers a Soft-Bass-
Rolloff-Filter and gain selections accessible via
toggle switches at the face plate. Both, gain
and filter functions, are executed by studio
grade relays inside the unit.
The Black Cube Decade is powered by the
PWX II, a power supply especially developed
for the unit which is downward compatible with
the PWX. This means that Black Cube audio
sections can also be connected. The second
power outlet at the PWX II is made especially
for that purpose. The PWX II power supply
with chokes at critical places powers the Black
Cube Decade with very clean DC power and
- like the Silver Cube - is connected to the audio
section via a shielded cable with Neutrik
plugs.
Features:
- The input stages used in the Black Cube Decade
can also be found in top notch mixing consoles or
in well known professional microphone preamplifiers.
- The passive filter network between two linear gain
stages realized with high precision MKP caps (Epcos)
- Several resistive and capacitive loads as standard
- Front switchable gain (36dB - 66dB) and Soft-
Bass-Rollof (6dB/oct. 60Hz)
- Onboard slot for custom impedance
- Zero global feedback Class A output stage technically
identical with the highly acclaimed Black Cube
Linear.
- LCL Pi-filter in the power supply section of the audio
board for optimal suppression of radio frequent
intermissions
- High quality gold plated pcb mount RCA connectors
for audio.
- High quality double sided printed circuit board for
optimal signal routing and component placing.
- Neutrik connector with gold plated contacts for
supply connection (as with the Silver Cube)
- Face plate anodized aluminium either black or silver.
Features PWX II (power supply):
- 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 overdimensioned but sports
a grounded isolation coil between the primary and
secondary coil.
- Only Low-ESR electrolytic capacitors are used
- Neutrik connectors with gold plated contacts for
supply connection (as with the Silver Cube).
- Chokes before and after the voltage regulation
- Downward compatible with PWX: Black Cube SE
audio sections can be connected. Black Cube standard
versions can be upgraded with an XLR plug.
- High quality double sided printed circuit board for
optimal signal routing and component placing.
- Double sided board for optimum parts placement
and trace routing
- Face plate anodized aluminium either black or silver.