JBL Professional Speaker - Manual (Page 2)

INSTRUCTIONS
Before Starting -- Click Speaker Configurator and then Preferences to set whether you will be using
English or Metric units.
Step 1 -- Click Speaker Configurator and then New Configuration to bring up the New Configuration
screen.
o
Enter the project name.
o
Check the bubble for whether the system will be used solely for music, solely for paging, or
for both.
o
Read the box about 70V/100V distributed speakers vs. low-impedance (8 Ω or 16Ω)
speakers. If you want the results to include low-impedance speakers (in addition to
70V/100V speakers), then click the top checkbox in that section. If you want to only
include low-impedance speakers, click the bottom checkbox in that section. Read the note
at the bottom left about complex rooms. Click NEXT.
Step 2 -- If you selected Music or Both, the music system screen will appear. Click the bubble
representing the sound level you want, based on the description in the bottom left. If in doubt between two
levels, check the higher level bubble to allow the proper headroom for either level. Click NEXT.
Step 3 -- If you selected Paging or Both, the paging system screen will appear. Click the bubble most
closely representing the type of application. The purpose is to determine what the typical ambient sound is
that the sound system will need to overcome. If your application is not specifically mentioned, choose an
application where the ambient sound level is similar to your application. Click NEXT.
Step 4 – On the Room Dimension screen, enter the dimensions of the room, or of the section of the room
that you are modeling. (Note that CSC does not compute based on the specific room dimensions, but rather
bases its computations on the total square footage of the floorspace. For more complete computations
taking into consideration the specific room dimensions, use DSD.)
Input the Ceiling Height. If the speakers will be installed below the actual ceiling height, input the height
above the floor at which the speakers will be installed. Click NEXT.
Step 5 – The Results screen appears.
o
Recommended Sound Level – Based on the information you entered on the Music page,
Paging page or both, CSC sets a recommended sound level. (The target paging sound level
for the listed application-types comes from industry standard BS5839, Annex B.)
o
Speakers Options #1,#2, & #3 – For most systems, CSC presents three possible speaker
choices. Option #1 is the least expensive choice, followed by #2 and then #3.
Matching Required Sound Level – Note that the sound level capability of some of the
speaker selection Options might be lower or higher than the target sound level
recommendation listed at the top of the page. Selections are made in a window that
allows a few dB variation from the recommended level, to provide some trade-off
choices.
In certain situations, such as very low target sound level with only low-impedance
speakers selected, actual sound level capability of the speakers could be considerably
higher than the target level simply because that is the sound level capability of the
designated speakers.