Lehmann Audio Linear Headphone Amplifier

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  • 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

We endeavour to despatch same day for orders placed up to 2pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is recieved. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK ORDERS:  We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail recorded delivery or special delivery. Larger items are delivered using a courier service such as Interlink Express, DPD, UPS or DHL. 

INTERNATIONAL ORDERS: We offer competitive rates which can be confirmed by email. Please just ask – we will need a full delivery address and telephone number. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using DPD, DHL or UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Turntableworld or by the courier with a request for any further information required. Customs duties do not apply for shipments into any EU country (for a full list please refer to the EU Country List). Customs duties can apply for countries outside of the EU. Customers in these countries are responsible for all taxes and duties incurred when the items enter their country.

COLLECT IN STORE OR HOME INSTALL:At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock. 

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