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 3  FEATURES

Basic principle of operation and ballistics based on the famous Fairchild 

compressor

Patented circuit completely eliminating distortion on low frequencies and on 

low-release time – all other compressors on short release time and on low 

frequencies   changes   amplification   within   single   sine   wave,   commonly   a 

major source of distortion

Extremely fundamental design based on patented "Lipinski Square" circuitry

No capacitors in the signal path

No Integrated Circuits (IC's) in the signal path

Only 0.04% maximum distortion with the highest (18dB) compression

Extremely fast attack time - 0.01ms (1/5th 20kHz sine wave)

Tape Simulation doesn't generate gimmicky even-harmonic distortions. This 

feature senses and triggers compression on high frequencies (correction 

within control network)

Auto gain: 5 sec attack time, and 5 min release time

Auto control has ballistics similar to VU meter, it is based on photo resistor, 

completely eliminates distortion with zero adjustment error - quality on 

output signal totally independent of input level

Dual peak meter pre and post compression 

Hard wiring option for stereo operation

Low-frequency distortion elimination system

In   analogue   compressors   when   short   release   time   is   set,   low-frequency   input 
signals are considerably distorted. It occurs because the gain changes during a 
single   period   of   the   signal.     The   Lipinski   Patented   circuit   designed   by   our 
engineers, eliminates this effect thoroughly.

Tape Simulation system

In a typical audio signal low-frequency components have greater level than high-
frequency   components.     Standard   compression   mode   treats   equally   all 
frequencies, which makes the sound very ‘sharp’. By turning Tape Simulation on, 
compression for high-frequency components is increased by 3 dB.

Lipinski Sound Corporation                   Confidential Copyright © 2010                 5 

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Summary of Contents for L-629

Page 1: ...User Manual L 629 Compressor 500 series module Lipinski Sound Corporation Confidential Copyright 2010 1 Page...

Page 2: ...Lipinski Do not use un authorized main cables All servicing must be performed by our qualified personnel Do not expose this product to moisture rain or water or direct sunlight Insure adequate air cir...

Page 3: ...DUCTION 4 2 UNPACKING 4 3 FEATURES 5 4 DESCRIPTION 7 5 PRODUCT SPECIFICATION 8 6 FRONT PANEL DESCRIPTION 9 7 QUICK GUIDE TO USING THE L 629 COMPRESSOR 10 Lipinski Sound Corporation Confidential Copyri...

Page 4: ...Simulation system Pre compression system Low frequency distortion elimination system Our L 629 Compressor is different from most devices you have had a chance to use It is based on the fabled Fairchi...

Page 5: ...ttack time and 5 min release time Auto control has ballistics similar to VU meter it is based on photo resistor completely eliminates distortion with zero adjustment error quality on output signal tot...

Page 6: ...nearly constant signal level at the input of the main compressing unit So the signal level at the input of the device could be from 100 mV to 5 V measured between signal line and ground Caution When...

Page 7: ...f the devices although the nonlinearity of the variable transconductance vacuum tubes is far higher than in L 629 s patented circuitry Moreover in Fairchild compressor apart from significant distortio...

Page 8: ...V or 3 1 V Input level range AUTO IN mode 200 mV to 10 V Audio output symmetrical Output impedance 75 k Output level when COMP OFF 3 1 V Output level when COMP ON 1 1 V to 8 7 V Dynamic range 100 dB...

Page 9: ...h tones is increased by 3 dB what sounds like a magnetic tape 3 FIXED IN AUTO IN Turning the pre compression unit on or off 4 LINK Socket for linking two L 629 s when in stereo mode 5 RELEASE TIME 6 A...

Page 10: ...ews are tight fitting Make sure to not cross the thread Plug your 500 series rack back into the AC source Set up and usage Plug input and output cables then power on the rack If the FIXED IN mode is u...

Page 11: ...We wish you fantastic unforgettable moments of audio performance The Lipinski Team Lipinski Sound Corporation Confidential Copyright 2010 11 Page...

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