Feed Forward and Feed Back Compression

The FAIRCHILD 670 mkII is equipped with a Mix Control which can also be used to obtain a blend of Feed Forward or Feed Back signals back into the Side-Chain Input, if you have the Side Chain Insert Option :

Feed-Forward

This setup will allow you to use the IN and OUT of your FAIRCHILD normally and to obtain more aggressive sounding compression, especially when the Mix control is set towards the input.

Back_Inserts