Introduction
9
adjacent columns is not permitted. Figure 1 shows the conceptual model along with a somewhat
simple routing. The input feeds the “WAH” block which feeds an “AMP” block which in turn feeds
the “CAB” block, etc. A second series path has another amp and cab and this path is added to the
first path at the input to the chorus (CHO). Signal flow is always left-to-right. We’ll cover routing
in more detail later.
Every effect has a common input-output structure. The input sums the outputs of the effects that
feed into the effect. Each effect can have up to four inputs from the previous column. In turn each
effect can feed its output to up to four effects in the subsequent column.
Figure 2. Effect Block I/O Structure
The Output Mixer (the block labeled “OUTPUT” in Figure 1) sums the signals from the four rows.
The Output Mixer allows mixing and panning of the four rows and overall level control.
