Note that the DX2 will default to its previous condition if the above operations are not completed and no buttons are pressed for 20 – 30 seconds.
Amplifier power, amplifier gain and limiter settings
We suggest you specify an amplifier capable of meeting the loudspeaker’s peak power rating – as long as you use the correct Martin Audio limiter recommendations. The limiter parameters protect the loudspeaker from long- term overloads whilst the correct amplifier specification protects the loudspeaker from transient overloads and clipping.
Limiter thresholds are factory preset for power amplifiers with the
*We recommend using power amplifier voltage with known gain settings if at all possible. Manufacturers’ sensitivity settings are not very useful as the resulting gain figures will vary from model to model depending on their power specifications causing spectral imbalance when using mixed amplifier
If you use a power amplifier set to a different gain standard, make absolutely sure it is set to that gain and adjust the limiter threshold settings as follows:
Power amplifier gain | Limiter threshold adjustment | |
23dB | Add 9dB | (e.g. +4dBu becomes +13dBu) |
24dB | Add 8dB |
|
25dB | Add 7dB |
|
26dB (Crown standard) | Add 6dB | (e.g. +4dBu becomes +10dBu) |
27dB | Add 5dB |
|
28dB | Add 4dB |
|
29dB | Add 3dB |
|
30dB | Add 2dB |
|
31dB | Add 1dB | (e.g. +4dBu becomes +5dBu) |
32dB (Industry standard) | Martin Audio preset standard | |
33dB | Decrease by 1dB | (e.g. +4dBu becomes +3dBu) |
34dB | Decrease by 2dB |
|
35dB | Decrease by 3dB |
|
36dB | Decrease by 4dB | (e.g. +4dBu becomes 0dBu) |
37dB | Decrease by 5dB |
|
38dB | Decrease by 6dB |
|
39dB | Decrease by 7dB |
|
40dB | Decrease by 8dB | (e.g. +4dBu becomes |
System configurations
Your Martin Audio DX2 Loudspeaker Management System must be correctly patched.
See the following standard preset and output channel allocation details.
Note that this information may be adapted for experienced technicians to create special user presets for the products listed – but please read the covering notes…
All material © 2007. Martin Audio Ltd. Subject to change without notice.
