1 PEAK Sets the amount of compression from zero to more than 40 dB of gain reduction. It defines the threshold at which the compression appears.

2 RATIO 3 positions switch that set the compression ratio.

• Ratio 3 (left): This is the COMPRESS setting in the LA2A. The actual ratio value is program dependent and changes with the level.
• Ratio 20 (center): This is the LIMIT setting in the LA2A. With this setting the LA502 works like a limiter.
• Ratio 6 (right): This is an additional intermediary setting.

3 HPF This switch inserts a high-pass filter in the sidechain which produces a fat sound and eliminates bass driven pumping.

• 0 (left): No filter, works like the original LA2A,
• 100Hz (center): 100Hz high pass,
• 200Hz (right): 200Hz high pass.

4 ATTK Sets the attack time of the compressor.

• 5mS (left): This is the attack time of the LA2A.
• 10mS (center): We have added a delay in the sidechain allowing percussive sound to pass through less affected.
• 20mS (right): The delay is further increased.

5 BYP

• BYP (left): Hardware relay bypass,
• IN (center): Compressor active,
• STER. (right): Compressor active and stereo link connected for stereo operations.

6 GAIN This potentiometer sets the output level of the compressor.

7 Meter Shows the gain reduction from -3dB to -20dB.