JBL PRX900 Series, Руководство пользователя

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Main Menu
•
Pressing the Main/Menu rotary at any time will take you to the PRX915/918XLF’ main menu. Here, users can access the
main menu functions of the PRX900 Series Subwoofers.
• DBX Driverack output - DriveRack is a line of hardware products produced by Harman’s dbx brand. These rack mount signal
processors provide detailed control for final processing and crossovers before feeding the mix to one or more speakers. This
DriveRack functionality embedded into PRX900 is designed to optimize the combination of speaker and Pass Thru outputs
built into this JBL speaker.
•
The Output EQ is a package of filter adjustments on the main mix before the audio feeds to the amp and speaker. It
includes a collection of easy to select preset curves for common subwoofer use cases. Each preset can also be loaded
into the Custom preset for detailed user adjustable of output parametric EQ’s. The user has adjustments for individual
band level, frequency, and width (“Q”).
•
“Output EQ” On/Off enables or bypasses the current settings in the output EQ processor.
•
“Presets” enables rotation of the Main/Menu knob to view and select from the Output EQ presets.
• Scroll the menu to “Presets” and press the MAIN/MENU knob.
• Rotate the MAIN/MENU knob to view the available presets.
• Click the MAIN/MENU knob to load the currently listed preset.
• Users can load the Custom preset, then double click the MAIN/MENU knob to open the Master EQ editing
page. Inside this graph display page you may rotate the MAIN/MENU knob to a specific parametric
EQ number and click the MAIN/MENU knob again to select to edit the gain (plus or minus in dB), filter
frequency, or “Q” (i.e. adjust the filter width.)
• Users can load any preset as a starting point, then scroll down and adjust any setting to load the
current curve as the Custom preset for further editing. A confirmation dialog will appear, warning
the user that doing this will remove the current Custom preset settings and load it with the currently
viewed settings.
• Flat – a flat tuned subwoofer preset
• 80hz – adjusts the subwoofer crossover point to 80hz
• 100hz – adjusts the subwoofer crossover point to 100hz
• 120hz – adjusts the subwoofer crossover point to 120hz
• Cardioid – adjusts the tuning, delay and polarity of the subwoofer to optimize its usage in cardioid mode.
For more on this, please see the Cardioid section of the guide.
•
Speaker Delay
•
Signal delays are used when multiple speakers are in use but speakers are at different distances from the audience.
• Examples:
•
A subwoofer in front of the stage, while this full range speaker in on the stage. In this configuration, the Pass
Thru XLR to subwoofer will need to be slightly delayed to make up for its closer position to the audience.
•
Time Alignment Basics:
EASYNAV LCD
Intro to the EasyNav LCD