Restore Flat; Common Settings; Source Selection; Main Delay - Martin Audio MA12K - 2010 User Manual

3.10.1

Restore flat

This command resets to default values all the DSP parameters after a confirmation request. Flat frequency
response, 0 dB gain, + polarity, no delay, no limiters and no damping control.
Input signal parameters, such as the stereo/parallel input mode and the AES3 gain trim are NOT modified.
3.10.2

Common settings

These parameters are applied (identical) to both channels.
3.10.2.1

Source selection

This menu allows you to choose the input selection mode.
In "Stereo Mode" the signal on CH1 IN is processed and then goes to CH1 OUT, and that on CH2 IN is
processed and then goes to CH2 OUT.
In "Parallel from CH1" the signal on CH1 IN goes on both CH1 and CH2 out, through independent DSP
processing. Similarly, in "Parallel from CH2" mode the source is the signal on CH2 IN.
3.10.2.2

Main delay

This is the delay that is applied to both channels. This is mainly intended for delayed speaker systems. The
delay ranges from 0 to 2000 ms, in 1 ms increments.
3.10.2.3

AES3

This menu controls the AES3 input options.

3.10.2.3.1 Gain trim

This menu sets the gain to be applied at the signal coming from the AES3 digital input. Setting 0 dB makes a
full-scale digital signal equivalent to an analog input signal of 20 dBu.

3.10.2.3.2 If no link

This menu controls the behaviour if the AES3 signal connection fails or becomes unreliable (>1% of errors).
You can choose either "mute" or "analogue".
If "mute" is selected, when the AES3 connection fails, the amplifier will mute the output.
If "analog" is selected, when the AES3 connection fails, the amplifier will take the signal from the analog
input.
The switching is done in real time to avoid a glitch. If the input levels are correctly matched between analog
input and AES3 input (use AES3 GAIN TRIM parameter), the switching between AES3 and analog will be
inaudible.
When you use the analog input backup, you must run the amplifier in parallel mode to select only one digital
input channel and you have to connect the corresponding analog signal cable in the ANALOG IN1 plug.
The amplifier must be patched like this:
All material © 2010 Martin Audio Ltd. Subject to change without notice
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