Lehmann Audio Linear Headphone Amplifier
code: n/a- Awarded 5 Stars in July's issue of What Hi-Fi 2009
Lehmann Black Cube Linear Headphone Amp
What Hi-Fi? July 2009
Awarded 5 Stars in this review in July's issue of What Hi-Fi?
"...it's impressive."
"...it will deliver a natural and informative sound."
"...it is detail obsessive..."
"...it doesn't forget to be musical. Dynamics, agility and timing are all spot on."
"As far as sonic performance is concerned, it's the best we've come across."
Lehmann Black Cube Linear Headphone Amplifier
No global feedback
Just music...
A high quality headphone amplifier is as important for listening to music with a pair of headphones as are stable power amplifiers for the loud-speakers of your stereo setup.
Dynamic headphones are much more different than most people realize. For the same sound pressure level the power needed with different headphone models can vary up to a factor of about 500! Impedances can be different to a factor of more than 20!
This is the reason why different headphone models have very individual requirements to the headphone amplifier driving them in terms of voltage and current. Everybody who once has connected a high quality headphone to any given standard headphone output knows about this problem.
With the launch of the Black Cube Linear there is now a high end headphone amplifier to realize even the highest demands to reference quality headphone music reproduction.
The selectable gain (0dB, 10dB, 20dB) of the Black Cube Linear effectively optimizes the output level of the zero global feedback Class A output stage. Practically all high quality dynamic headphones available will show their best possible performance, no matter if you have an easy to drive low impedance pair of headphones or an ineffective pair of 600 Ohms studio cans.
Carefully selected top notch components and a highly sophisticated circuit design guarantee top notch listening pleasure. Now you can hear that ultra transparent sound and the explosive dynamics formerly known only from electrostatic headphones. An overdimensioned power supply with a huge magnetically and statically shielded toroidal transformer is included internally allowing a power cable of your choice to be directly connected to the unit.
For stereo setups with just one source like a CD player or a turntable with a phono stage the Black Cube Linear is the simplest and most effective active preamp one can think of. All audio connectors including the two Neutrik phone jacks come with gold plated contacts. No external Y-adapter is needed!
The faceplate and the massive milled aluminum knob for the smooth running 27mm ALPS high grade volume control are available in anodized black or silver.
To to get the best out of your headphone you will have to try the Black Cube Linear.
Get your free copy of the "Techletter headphone amplifier" with useful information about impedance and efficiency of well known headphones at your Lehmannaudio dealer or on the internet.
Technical details:
Input impedance: 47 KOhms
Maximum gain: 0dB, 10dB, 20dB switchable underneath the unit
Frequency response: 10Hz (-0.3dB)
to 35 kHz (-1dB)
Signal to noise: >95dB at odB gain
THD: <0.001% at 6mW/300 Ohms
Channel separation: >70dB/10kHz
Output power: 200mW/300 Ohms
400mW/60 Ohms
Output impedance: line out 60 Ohms
phones out 5 Ohms
Power dissipation: <5W, internal, regulated power supply
Dimensions: 280 x 110 x 44mm³
(case only)
Connectors (audio): Neutrik phone jacks 6.35mm with gold plated contacts
1x parallel to line out
1x line out muting
gold plated RCA connectors with Teflon isolation
Weight: app. 1.5 kg
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