Lehmann Audio offers high quality and high performance for both home system and studio applications.

Norbert Lehmann

After being educated in the field of sound recording engineering, Norbert Lehmann began experimenting with audio circuit design in 1988.  This experimentation culminated in the first Black Cube phono preamplifier prototype in 1995.  The Black Cube was an immediate hit, recognized for its cost-to-price performance.

Since that time, Mr. Lehmann has continued to improve upon the Black Cube design and has advanced it to build a full line of phono preamplifiers, including a true reference model.  During this time he has also developed a line of headphone amplifiers, including the high value Rhinelander model.

Norbert Lehmann continues the development and refinement of his line of products today.  We can look to the future for an ever-expanding and improving line of Lehmann products.

We at Osage Audio Products are proud to have been chosen as a retailer of Lehmann Audio electronics.  If you have questions about the Lehmann Audio product line, or would like to purchase a Lehmann Audio product, please call us at 573-696-3551 or email us at your convenience.  We are open late and weekends.

Lehmann Audio products are available only by telephone, in our showrooms, or by email.  They are not available in our Online Store.

You can find more information about Lehman Audio and their exceptional selection of audio electronics by visiting their website.

Phono Preamplifiers

Black Cube Statement

Black Cube Statement

Specifications:

            Selectable Gain Settings:  31dB, 41dB, 51dB, 61dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Input Capacitance:  100pF
            Output Impedance:  <100 Ohms
            Signal to Noise Ratio:  >57 dB
            RIAA Network:  Passive
            Power Supply:  External wall wart
            Available in Black finish.
                                               
Retail Price:  $459.00

Black Cube Original

Black Cube Original

Specifications:

            Selectable Gain Settings:  36dB, 46dB, 56dB, 66dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Input Capacitance:  100pF
            Output Impedance:  <100 Ohms
            Signal to Noise Ratio:  >66 dB
            RIAA Network:  Passive
            Bass Filter:  Soft Bass Rolloff of 6 dB per octave at 60 Hz
            Power Supply:  External
            Available in Black finish.
                                               
Retail Price:  $629.00

Black Cube SE

Black Cube SE

Specifications:

            Selectable Gain Settings:  36dB, 46dB, 56dB, 66dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Input Capacitance:  100pF
            Output Impedance:  <100 Ohms
            Signal to Noise Ratio:  71 dB moving magnet, 63 dB moving coil
            RIAA Network:  Passive between 2 gain stages
            Bass Filter:  Soft Bass Rolloff of 6 dB per octave at 60 Hz
            Power Supply:  External toroidal PWX
            Available in Black finish.
                                               
Retail Price:  $929.00

Black Cube SE II

Black Cube SE II in Silver

Specifications:

            Selectable Gain Settings:  36dB, 46dB, 56dB, 66dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Input Capacitance:  100pF
            Output Impedance:  <100 Ohms
            Signal to Noise Ratio:  71 dB moving magnet, 66 dB moving coil
            RIAA Network:  Passive between 2 gain stages
            Bass Filter:  Passive with 16 roll off frequency selections
            Power Supply:  External toroidal PWX
            Available in Black or Silver finish.
                                               
Retail Price:  $1169.00

Decade

Decade in Silver

Specifications:

            Selectable Gain Settings:  36dB, 46dB, 56dB, 66dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Output Stage:  Zero feedback Class A
            Input Capacitance:  100pF
            Output Impedance:  <100 Ohms
            Signal to Noise Ratio:  71 dB moving magnet, 66 dB moving coil
            RIAA Network:  Passive between 2 gain stages
            Bass Filter:  Soft Bass Rolloff of 6 dB per octave at 60 Hz
            Power Supply:  External toroidal PWX II in matching chassis
            Available in Black or Silver finish.
                                               
Retail Price:  $2099.00

Silver Cube

Silver Cube Front

Silver Cube Back

Specifications:

            Casework:  Milled from solid aluminum block
            Circuitry:  Discrete dual mono with zero feedback Class A FET output stage
            Featured Internal Components:  Mundorf MKP capacitors, WBT Nextgen
                      connectors
            Selectable Gain Settings:  36dB, 46dB, 56dB, 66dB
            Selectable Input Impedance Settings:  47k Ohm, 1k Ohm, 100 Ohm
                      (slot for customized impedance loading included)
            Output Stage:  Zero feedback Class A
            Selectable Input Capacitance Settings:  47pF to 1370pF
            Output Impedance:  5 Ohms
            Signal to Noise Ratio:  78 dB moving magnet, 69 dB moving coil
            RIAA Network:  Passive between 2 gain stages
            Bass Filter:  Soft Bass Rolloff of 6 dB per octave at 50 Hz
            Power Supply:  External toroidal with isolating coil and filter chokes on
                      secondary windings
            Available in Silver finish; external power supply has black chassis.
                                               

Headphone Amplifiers

Drachenfels/ Drachenfels USB

Drachenfels in Silver

Specifications:

            Inputs:  1
            Input Impedance:  47k Ohms
            Voltage Gain:  12 dB maximum by Potentiometer
            Frequency Response:  10 Hz (-0.3dB) – 35k Hz (-1dB)
            Signal to Noise Ratio:  >85 dB at 0 dB Gain
            Channel Separation:  >80 dB at 10k Hz
            Outputs:  2 x Phones; 1 x Switched Line Out; 1 x Non-switched Line Out
            Output Power: 110 mW @ 330 Ohms; 180 mW @ 33 Ohms
            Output Impedance:  Phones – 5 Ohms; Line – 105 Ohms
            Available in Black or Silver finish.

Linear

Linear in Black		Linear in Silver

Specifications:

            Inputs:  2 with relay source selection
            Input Impedance:  47k Ohms
            DIP Switch Selectable Gain:  0 dB, 10 dB, 20 dB
            Frequency Response:  10 Hz (-0.3dB) – 35k Hz (-1dB)
            Signal to Noise Ratio:  >95 dB at 0 dB Gain
            Channel Separation:  >70 dB at 10k Hz
            Output Power: 200 mW at 300 Ohms
            Output Impedance:  Headphone out – 5 Ohms, line out – 50 Ohms
            Available in Black or Silver finish.

Linear SE

Linear SE/ Linear SE USB in Black

Specifications:

            Inputs:  2 with relay source selection
            Input Impedance:  47k Ohms
            Jumper Selectable Gain:  6 dB, 20 dB
            Frequency Response:  10 Hz (-0.3dB) – 35k Hz (-1dB)
            Signal to Noise Ratio:  >95 dB at 0 dB Gain
            Channel Separation:  >70 dB at 10k Hz
            Output Power: 200 mW at 300 Ohms
            Output Impedance:  5 Ohms
            Power Supply:  Low noise toroidal external
            Available standard in Black finish.  Other finishes available                     
            by special order.

We at Osage Audio Products are proud to have been chosen as a retailer of Lehmann Audio electronics.  If you have questions about the Lehmann Audio product line, or would like to purchase a Lehmann Audio product, please call us at 573-696-3551 or email us at your convenience.  We are open late and weekends.

Lehmann Audio products are available only by telephone, in our showrooms, or by email.  They are not available in our Online Store.

You can find more information about Lehman Audio and their exceptional selection of audio electronics by visiting their website.

Osage Audio Products, LLC ∙ P.O. Box 232 ∙ Hallsville, MO  65255
  573-696-3551 ∙ www.osageaudio.com ∙ info@audiointelligent.com
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