35
Thunder
User Guide
Active Analog Audio Breakout Panels - Adjustment
These panels are intended for use as microphone input panels.
They incorporate two front-of-panel controls for each XLR connector.
The switches are self centering, 3 position momentary action types. In the case of the
“PH/PWR” switches, the throw is either momentary left (phantom power off ) or momentary
right (phantom power on) from the center position. For the “GAIN” switches the throw is
either momentary down (lower gain setting) or momentary up (higher gain setting). The
operation of these switches is explained more thoroughly below. A single Expansion Panel
is available with either one or two 8 channel banks installed for a total of up to16 channels.
The “Extended” switch functions explained below (switches that perform operations on
multiple channels) pertain to single banks of 8. Numbers shown in parenthesis () are for a
second 8 channel bank (if so equipped).
The “PH/PWR” and “GAIN” switches on the Thunder MIC Input Expansion Panel work in the
following manner:
Phantom Power Switches
Single Switch Functions (Any Channel)
• Press “PH/PWR” toggle left momentarily – Phantom Power is
disabled, “OFF” on the appropriate channel.
• Press “PH/PWR” toggle right momentarily – Phantom Power is
applied, “ON”, to the appropriate channel.
Extended Switch Functions (All 8 channels “ON”, All 8 channels
“OFF”)
• Press and hold CH1 (CH9) “PH/PWR” toggle left, Press CH8
(CH16) “PH/PWR” toggle left momentarily – Phantom Power to
all 8 channels is disabled simultaneously; “OFF”
• Press and hold CH1 (CH9) “PH/PWR” toggle right, Press CH8
(CH16) “PH/PWR” toggle right momentarily – Phantom Power to all 8 channels is
applied simultaneously; “ON”
Gain Switches
Single Switch Functions (Any Channel)
