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BEFORE YOU BEGIN
The MPRO speakers covered by this manual are designed for portable applications in which the speakers will be
stacked directly on the floor, stage, a solid, stable platform, mounted on a tripod stand or pole mount. JBL
Professional does not support suspension of the MP
RO models covered by this manual nor are these models
intended for fixed installation in outdoor or high moisture environments. Moisture can damage the speaker cone
and surround and cause corrosion of electrical contacts. Avoid exposing the speakers to direct moisture. Keep
speakers out of extended or intense direct sunlight. The driver suspension will prematurely dry out and finished
surfaces may be degraded by long-term exposure to intense ultra-violet (UV) light.
MP
RO speakers can generate considerable energy. When placed on a slippery surface such as polished wood or
linoleum, the speaker may move due to its acoustical energy output. Precautions should be taken to assure that
the speaker does not fall off a stage or table on which it is placed.
Some MP
RO speaker models include a 35 mm receptacle cup to allow mounting on tripod stands. When using
stands, be sure to observe the following precautions:
• Check the stand specification to be certain it is designed to support the weight of the speaker.
Observe all safety precautions specified by the stand manufacturer.
• Always verify that the stand is placed on a flat, level, and stable surface and be sure to fully extend
the legs of tripod type stands. Position the stand so that the legs do not present a trip hazard.
• Route cables so that performers, production crew, and audience will not trip over them pulling the speaker over.
• Do not attempt to place more than one speaker on a stand designed for a single speaker.
• Always be cautious in windy, outdoor conditions. It may be necessary to place additional weight (i.e. sandbags)
on the base of the stand to improve stability.
• Unless you are confident that you can handle the weight of the speaker, ask another person to help you get it
onto the tripod stand.
Hearing damage, prolonged exposure to excessive SPL
MP
RO loudspeakers are easily capable of generating sound pressure levels (SPL) sufficient to cause
permanent hearing damage to performers, production crew and audience members. Caution should be taken
to avoid prolonged exposure to SPL in excess of 90 dB.
CONTENTS
2
Before You Begin - Important Information
Product Range
Product Specifications
Block Diagrams
Speaker Cables
Basic Configuration
Bi-Amp Configuration
JBL Warranty and Contact Information
2-5
6-7
8-9
10
11
12
13
16