Page 28 User Guide
English
Installation and Operating Guide
pro.Bose.com
MAIN MENU < DSP < LIMITING
DSP
Speaker Presets
Array EQ
Delay
Limiting
Description
This display allows you to adjust limiting parameters that allow for loudspeaker driver protection for each output channel.
Available Controls
To access Limiting, use the rotary encoder dial from the DSP menu to highlight, then press to select.
Navigation Soft Key: Back to DSP menu.
Menu Soft Key #5: Enables the selection of the output channel (or output groupings) using the rotary encoder dial.
Menu Soft Key #1: Enables the selection of a peak voltage value, which corresponds to the maximum voltage that may be applied to the driver
without causing over-excursion. Use the rotary encoder to adjust the selected parameter.
Menu Soft Key #2: Enables the selection of an RMS voltage threshold value, which works in conjunction with the subsequent attack and release
values. The RMS voltage setting corresponds to the long-term power handling capability of the loudspeaker. Use the rotary encoder to adjust the
selected parameter.
Menu Soft Key #3: Enables the selection of attack time, in milliseconds, related to the RMS limiter. Use the rotary encoder to adjust the selected
parameter.
Menu Soft Key #4: Enables the selection of release time, in milliseconds, related to the RMS limiter. Use the rotary encoder to adjust the selected
parameter.
Options
PEAK: 0.5 to 200 Volts (dependant on output mode), 0.5 V increments
RMS: 0.5 to 100 Volts (dependant on output mode), 0.5 V increments
ATTACK: From 500 to 10,000 milliseconds
RELEASE: From 500 to 10,000 milliseconds
Notes
Values are automatically applied for Bose
®
loudspeakers set in MAIN MENU < DSP < SPEAKER PRESETS.
For non-Bose loudspeakers, refer to manufacturer technical specifications for information to properly configure the limiter.
See "Setting the Limiting Function for use with 3rd Party Loudspeakers" on page 34 for further details.
MAIN MENU < CONFIGURE
CONFIGURE
Description
The CONFIGURE menu allows you to access the configuration of input and output signals for a particular system design.
Available Controls
Navigation Soft Key: Return back to MAIN MENU.
Menu Soft Key #1-5: Changes menu to respective category.
Rotary Encoder: Scrolls and selects menu options.
Options
Output Config
Input Routing
MAIN MENU < CONFIGURE < DIGITAL INPUT RANGE
CONFIGURE
Description
On 4-channel models (PM4500, PM4250), a group of channels from expansion cards card can be mapped to input channels A-D.
Available Controls
"To access Digital Input Range, use the rotary encoder dial from the CONFIGURE menu to highlight, then press to select.
Navigation Soft Key: Back to CONFIG menu.
Menu Soft Key #1 and 2: Selects a range of digital input channels for access by the amplifier."
Options
[1-4], [5-8]
Notes
Amplifier models PM4500 and PM4250 are input channel limited to four analog and/or four digital channels. For additional flexibility, 8-channel
feeds from the digital expansion slot have been grouped into 4-channel banks for selective use in installations with multiple 4-channel PowerMatch
amplifiers.
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