24
7 Audio Distribution Amplifier - RB-DA24MD
Outputs 1-12 D-Type
Outputs 13-24 D-Type
Pin No.
Signal
Signal
Pin 1
Screen
Screen
Pin 2
Output 1 - Phase
Output 13 - Phase
Pin 14
Output 1 - Non-Phase
Output 13 - Non-Phase
Pin 3
Output 2 - Phase
Output 14 - Phase
Pin 15
Output 2 - Non-Phase
Output 14 - Non-Phase
Pin 4
Output 3 - Phase
Output 15 - Phase
Pin 16
Output 3 - Non-Phase
Output 15 - Non-Phase
Pin 5
Output 4 - Phase
Output 16 - Phase
Pin 17
Output 4 - Non-Phase
Output 16 - Non-Phase
Pin 6
Output 5 - Phase
Output 17 - Phase
Pin 18
Output 5 - Non-Phase
Output 17 - Non-Phase
Pin 7
Output 6 - Phase
Output 18 - Phase
Pin 19
Output 6 - Non-Phase
Output 18 - Non-Phase
Pin 8
Output 7 - Phase
Output 19 - Phase
Pin 20
Output 7 - Non-Phase
Output 19 - Non-Phase
Pin 9
Output 8 - Phase
Output 20 - Phase
Pin 21
Output 8 - Non-Phase
Output 20 - Non-Phase
Pin 10
Output 9 - Phase
Output 21 - Phase
Pin 22
Output 9 - Non-Phase
Output 21 - Non-Phase
Pin 11
Output 10 - Phase
Output 22 - Phase
Pin 23
Output 10 - Non-Phase
Output 22 - Non-Phase
Pin 12
Output 11 - Phase
Output 23 - Phase
Pin 24
Output 11 - Non-Phase
Output 23 - Non-Phase
Pin 13
Output 12 - Phase
Output 24 - Phase
Pin 25
Output 12 - Non-Phase
Output 24 - Non-Phase
Input Gain Control
The input gain on the RB-DA24MD can be varied between -15dB and +15dB
by adjusting the pre-set potentiometers. These are accessible through the
holes in the rear panel. The RB-DA24MD has separate input 1 and input 2
gain controls.
LF Roll Off Filter
A low frequency roll off filter is activated by a push switch on the rear
panel. This implements a 125Hz 6dB per octave roll off filter which is
applied to both inputs.
Dual Mono/Mixed Mono Operation
The method of operation may be switched between stereo/dual mono
and mixed mono. When the RB-DA24MD is set to dual mono each input
is distributed separately to outputs 1-12 and 13-24. Input 1 is routed to
outputs 1-12 and input 2 to 13-24. When it is set to mixed mono mode both
inputs are mixed and routed to all 24 outputs.
Fig 7-6: 25 Roll Off and Dual Mono/Mixed Operation Switches
Mixed Mono Settings
When set to mixed mono operation there are 3 different mix level modes,
selected by the 4 jumpers on the PCB.
Jumper Link
Mix Mode
Off
(Input 1 + Input 2) -6dB
Pin 1 & 2
(Input 1 + Input 2) -3dB
Pin 2 & 3
Input 1 + Input 2
All jumpers (J1 to J4) must be set the same for correct operation.
Содержание Redbox RB-AES4B3
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