User manual

AMP-S8 Series+ User Manual P/N 821640 Rev-B

Analog Input Connector

This female DB-25 connector accepts standard balanced, line level analog signals. See diagram below for pin-out information.

Metered Analog Output Connector

This DB-25 connector outputs analog signals as de-embedded from the selected sources or downmix, which are eligible for

conversion to analog. See the diagram under Item J above for pin-out information.

NOTE: The Analog Output Preference entry within the Setup menu is used to determine how this connector outputs

the channel mix when a DM1, DM2, or DM3 downmix selection is enabled. The default setting is Downmix, which

outputs the channel mix with individual channel scaling (gain settings) intact as determined by the selected downmix (DM1,

DM2, or DM3). However, if Discrete is selected, then all channels within the downmix are output from these connectors

at full gain without scaling of the channels as determined by the selected downmix. See Analog Output Preference (A-

OutPref) section on page 30 for information on how to set this parameter.

Reference Setting Rotary Switch (1-10)

This recessed 10-position rotary switch is used to set the Analog and Digital Reference Levels for the units level meters, as well

as selecting the Software Upgrade function. In the table shown, the Analog Reference Level (Analog, left column) is the

analog input level needed to turn on the bargraph segment at the associated Digital Reference Level (Digital, right column) value.

This is also the location on the bargraph level meter where the color transitions from GREEN to AMBER. Example: Choosing

position 2 (0 dBu = -20 dBFS) means an analog input level of 0 dBu will light up the LED segment associated with the digital -20

dBFS value on the bargraph meter and also transition from GREEN to AMBER at that segment.

Rear Panel Features

Section 2: Operation

Selected/Downmix Analog Output Connectors (Left and Right)

These two 3-pin male XLR connectors are analog outputs of the channel mix (or downmix) source as selected for the left and

right speaker channels. Pinout conections are: Pin-1 = Ground (shield), Pin-2 = High (+), Pin-3 = Low (-).

NOTE: The Analog Output Preference entry within the Setup menu is used to determine how these connectors

output the channel mix when a DM1, DM2, or DM3 downmix selection is enabled. The default setting is Downmix,

which outputs the channel mix with individual channel scaling (gain settings) intact as determined by the selected

downmix (DM1, DM2, or DM3). However, if Discrete is selected, then all channels within the downmix are output

from these connectors at full gain without scaling of the channels as determined by the selected downmix. See

Analog Output Preference (A-OutPref) section on page 30 for information on how to set this parameter.