Page 19
CDi DriveCore Series Operation Manual
Conguring the Amp
Limiter
The CDi DriveCore Series amplifiers include the LevelMAX™ suite of limiters. Limiter
settings can be edited from the Limiter screen (see Figure 20). Limiters are used to set
a "ceiling" on the output level to protect drivers from over-excursion. The thermal limiters
in the CDi DriveCore Series amplifiers can also protect against thermal driver failure
(overheating).
To edit limiter settings manually:
1� From the Home screen, press the MENU button.
2� Select the "Configure Amplifier" option from the menu using the ENCODER.
3� Select the "Speaker Tunings/DSP" option from the menu.
4� Select the "Limit" icon for the channel you wish to edit.
5� Use the ENCODER to navigate, make selections, and edit settings.
6� When done, select "Done" at the bottom of the screen.
Available options/parameters:
• Enable (Off, On)
Turns the Limiter on or off.
• RMS Voltage (1 – 400VRMS)
Sets the RMS voltage limit for the output.
• Thermal Voltage (1 – 500V)
Sets the long-term output power limit of the amplifier to what the loudspeaker load can handle without overheating and going into thermal
compression. This is based on the AES power/voltage ratings of drivers outlined in the AES2-2012 standard.
• Thermal Response (1 – 600 sec)
Sets the time it takes for the thermal limiter to adjust output voltage. This is based on the AES power/voltage ratings of drivers outlined in the AES2-
2012 standard.
NOTE: The LevelMax limiters include sidechain EQ for advanced speaker tunings. Sidechain EQ parameters are not user adjustable.
Additional limiter parameters are available in Audio Architect. For more information, see "LevelMAX Panel" on page 45.
For more information on the LevelMAX limiters and how to set the parameters, see the LevelMAX white paper available at www.crownaudio.com.
Figure 20: Limiter screen
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