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Lehmann Audio Black Cube Buffer Cable Driver
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Lehmann Audio Black Cube Buffer Cable Driver

£574.95   
£479.13 Exc. VAT |  
  

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Lehmann Audio Black Cube Buffer Cable Driver 

The name Lehmann Audio has long become synonymous for producing cost effective state of the art audio electronics. The Black Cube Buffer is a high end cable driver that satisfies the highest demands and is the solution for practically all problems with long cables or different levels.

Many music lovers have an affinity to puristic concepts like the so called passive preamps. Although there are certain qualities, these setups are facing problems with long cables. The sound is often too soft and weak. Highs lack transparency and bass impact is also dissatisfying. This is mainly caused by a high source impedance of the passive attenuators.

The Black Cube Buffer is the ideal partner. Due to the low impedance output driver circuit realised as high current Class A design without global negative feedback the music flows unaltered, artefact free and with all its inherent energy to the next following input.

Another application for the Black Cube Buffer is the field of biamping where low efficiency woofers are combinded with much higher efficiency midrange drivers and tweeters like for example horn system. In many cases the gain reserve for the woofer is insufficient. Here the Black Cube Buffer can be effectively used for level optimisation.

Weak output stages of any line sources can greatly benefit from the Black Cube Buffer. Especially variable outputs of CD-palyers are very often dimensioned inferior. This is often the reason why a seemingly puristic combination of CD-player, power amp and speakers sounds dissatisfactory in so many cases.

With the Black Cube Buffer such setups can turn into highlights!

The name Lehmannaudio has long become synonymous for producing cost effective state of the art audio electronics. The Black Cube Buffer is a high end cable driver that satisfies the highest demands and is the solution for practically all problems with long cables or different levels. Many music lovers have an affinity to puristic concepts like the so called passive preamps. Although there are certain qualities, these setups are facing problems with long cables. The sound is often too soft and weak. Highs lack transparency and bass impact is also dissatisfying. This is mainly caused by a high source impedance of the passive attenuators. Due to the low impedance output driver circuit realized as high current Class A design without global negative feedback the music flows unaltered, artefact free and with all its inherent energy to the next following input. Another application is the field of biamping where low efficiency woofers are combined with much higher efficiency midrange drivers and tweeters like for example horn systems. In many cases the gain reserve for the woofer is insufficient. Here the Black Cube Buffer can be effectively used for level optimization. Weak output stages of any line sources can greatly benefit from this unit. Especially variable outputs of CD-players are very often dimensioned inferior. This is mostly the reason why a seemingly puristic combination of CD-player, power amp and speakers is sounding dis-satisfactory in so many cases. With the Black Cube Buffer such setups can turn into highlights! 

Read more at: http://www.hifigear.co.uk/lehmann-audio-black-cube-buffer.html
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Technical Data:

Input impedance: 47 KOhms
Maximum gain: 0dB, 10dB, 20dB switchable underneath the unit
Maximum input level: 9V at gain 0dB, 900mV at gain 20dB
Maximum output level: 9V RMS
Frequency response: 10Hz (-0.3dB) to 60 kHz (-1dB)
Signal to noise: >95dB at 0dB gain
THD: <0.001% at 6mW/300 Ohms
Channel separation: >70dB/10kHz
Output impedance: 60 Ohms
Power dissipation: <5W, internal, regulated power supply
Dimensions: 280 x 110 x 44mm3 (case only)
Connectors (audio): gold plated RCA connectors with Teflon isolation
Weight: app. 1.4 kg

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