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Introduction

Thanks for purchasing our Classic FET Compressor, this is our version of the well
known FET compression designs, including all the character and fast response you
could expect from it, as well as some added features like True bypass or Sidechain
HPF which are extremely useful in the modern studio environment.

Built in a 19” 2U. Rack chassis, uses high quality VU-Meter for Gain Reduction or
Output Level monitoring. using RGB LED illumination, the meter also displays useful
information like overcompression or bypass state. Additionally, Bypass is Wi-Fi
controllable, allowing you to make precise A/B comparison from the listening spot.

Below you can find the block diagram for the audio path.

Installing your compressor

Before plugging the unit to mains power, check the rear voltage switch position is set
for your local voltage (110VAC 60Hz. or 220VAC 50Hz.)

The audio input and output uses XLR connectors to receive and send balanced
signals. Although we highly advise using balanced cables, the unit will work with
unbalanced input and will feed unbalanced devices through it’s output, just keep in
mind the 6db’s loss when using unbalanced cables.

Although all our products are built, tested and packed conscientiously, some
problems may occur during transport. If you find any problem or malfunction please
unplug the unit and contact us to

victornafria@lennardaudio.com

to find a solution or

replace the unit.

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Classic FET Compressor - User Manual

Summary of Contents for CLASSIC FET COMPRESSOR

Page 1: ...CLASSIC FET COMPRESSOR User Manual www lennardaudio com...

Page 2: ...ng your compressor Front Rear Panel Drawings Control Description VU Meter Indication Calibration Linking two units Specs and Measurements Recall Sheet Warranty and Legal Health and Safety consideratio...

Page 3: ...he listening spot Below you can find the block diagram for the audio path Installing your compressor Before plugging the unit to mains power check the rear voltage switch position is set for your loca...

Page 4: ...Front Rear Panel Drawings Classic FET Compressor User Manual 3...

Page 5: ...nit react when the threshold level is reached by the input signal continuously variable from 20us to 800ms Release sets the speed of the gain recovery after the input signal falls below the threshold...

Page 6: ...ency energy coming into the detector so lower frequency sounds don t create overshoot in gain reduction level resulting in a smoother compression and a more natural sound ALL IN Emulates the behaviour...

Page 7: ...r is out of the signal path Calibration Each unit is conscientiously calibrated and tested after building it and the circuit design assures consistent and stable along time calibration However Zero in...

Page 8: ...dance 10k Output Impedance 600 Max Input Level 18dBu Max Gain 40dB Max Out Level 28dBu Freq Response 1dB 20Hz 20Khz THD 4dBu no compression 0 025 THD 4dBu 6dB Gain Reduction 0 12 S N Ratio 75 dBs Clas...

Page 9: ...Recall Sheet 8 Classic FET Compressor User Manual...

Page 10: ...liquid moisture or vibration Avoid direct sunlight and maintain an optimal ventilation Special care should be given to the power and signal cables don t run them where they could be pierced stepped o...

Page 11: ...Technical Support For any doubt about installation or usage as well as claim warranty you can contact us via email in victornafria lennardaudio com 10 Classic FET Compressor User Manual...

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