User Guide

Q2 OPERATION AND MAINTENANCE MANUAL 9601 19
One trend in modern console design that DDA has chosen not to
follow is the removal of the traditional 20dB pad in favour of a
wide range gain control system.
The reason for this is mostly due to the use of microphone input
transformers. Their position in the circuit is always before the
input amplifier. Without a pad, the risk of saturating the
transformer with high level microphone outputs is extreme, unless
very large transformers are used.
DDA's philosophy places the 20dB pad before the transformer to
eliminate the risk of transformer saturation.
THE 20DB PAD