Lehmann Audio Black Cube Headphone amp

Lehmann Audio Black Cube Headphone amp

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Dynamic headphones vary far more than people realise. For the same sound pressure level the power needed with different headphone models can vary upto 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 of the amplifier driving them in terms of voltage and current.

The selectable gain (0dB, 10dB, 20dB) of the Black Cube Linear effectively optimises 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 a difficult pair of 600 Ohm studio cans.

Carefully selected top notch components and a highly sophisticated circuit design guarantee top performance 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 two Neutrik headphone jacks come with gold plated contacts.

The faceplate and the massive milled aluminium knob for the smooth running ALPS high grade volume control are available in anodised black or silver.


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 44mm sq.
      (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 kgone amp


Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £100*. Out of stock items will be dispatched as soon as they become available, out of stock items can take between 4 to 21 days for dispatch.


Orders are sent via our couriers' DPD on a next-day-delivery service and usually, take between 1 and 3 days. 


Please use this link to find more detailed delivery information.


*We ship free of charge to mainland UK addresses, excluding the Scottish Highlands or 'Out-Of-Reach' Scottish locations. Please consult the post-codes below to see if your location falls within this category. If you are still unsure, please contact us on 01432 354921. We also ship to Northern Ireland, Channel Islands, Scilly Isles, Scottish Isles and Scottish Highlands, however, delivery to these locations will incur a charge and can only be sent via a 2-day service.

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