Pre-compression unit
Proper signal level should be applied to the input of the main compressing unit.
You can either set it at the source of the signal (FIXED IN) or let the device control
it automatically (AUTO IN).
When the signal level is set at its source, its amplitude could be set to 0.775 V or
1.55 V (chosen by a switch on the mainboard).
The device can also control the input signal level automatically. To achieve this a
pre-compressing unit is used. Its attack time is about 4 seconds and release time
can be set between 120 and 300 sec. This results in 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 signal with long piano periods is applied the effect may be
compromised.
Extremely low distortion – 0.04 %
By using our patented compressing unit, our device can reach unusually low
distortion.
LINK Socket
In stereo recordings identical compression ratios in both channels are necessary.
You can achieve this by linking two L-629's together with LINK sockets.
Input and output peak level indicators
To show the difference between signal levels at input and output two peak level
indicators are used.
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