User guide

AMP1A Series User Guide

Internal Switch Settings

Figure 1–16 AMP1-30 Phase Correlation Labels

Figure 1–17 AMP1A-106 Phase Correlation Labels

Positive amounts of correlation are indicated by an ascending amber

bar in the lower (right channel) bar graph; negative correlation is

shown when a red bar ascends in the top (left channel) bar graph.

While the audio level in both channels is high enough, the phase

correlation indication occupies the bottom 13 segments of both bar

graphs of a 30-segment stereo pair. One additional segment above the

active correlation region is always off, to serve as a marker. The

correlation display is visible only so long as the VU audio level is above

this blank segment (fourteenth segment up on the 30-segment bar

graph).

AMP1A Plus and AMP1A-LP10S Internal Switch

Settings

Level Meter DIP Switch Settings

Two DIP switch modules, accessed through an opening in the top

cover, allow the user to set the bar graph display mode and meter input

gain calibration independently for each of the two bar graph displays.

There are four sections (S1, S2, S3, S4) on each DIP switch module. The

first two sections (S1, S2) are for setting the meter input gain calibration

and the second two sections (S3, S4) are for setting the bar graph

display mode. See Figure 1–18 on page 22.