In-Ceiling Installation Guide - JBL Synthesis SCL-5 Installations- Und Bedienungsanleitunghandbuch

WARNING: HARMAN International assumes no responsibility for improper installation of hardware or for any personal injuries or product
damages resulting from improper installation or a fallen loudspeaker.
PREPARING THE HOOK-UP WIRE
1. First determine the distance between your amplifier and the most distant speaker in each group (fronts, surrounds, back surrounds, passive
subwoofers).
2. Now make the hookup wires for all speakers in each group this length, even if one speaker is much closer to your amplifier than the other.
This will help maintain proper signal balance. Remember to make extra wires for bi-amp or bi-wire usage should this be selected.
3. Strip off 3/8" of insulation from both ends of each conductor.
4. Twist each set of stranded wires into a tightly bunched spiral. Run wires through walls to the mounting positions.
5. Speakers and electronics terminals have corresponding (+) and (–) terminals. Most manufacturers of speakers and electronics, including JBL,
Inc., use red to denote the (+) terminal and black for the (–) terminal. Please confirm before connecting.
It is important to connect all speakers identically: (+) on the speaker to (+) on the amplifier and (–) on the speaker to (–on the amplifier. Wiring "out of
phase" (+ to - and - to +) results in thin sound, weak bass and poor imaging.
With multichannel surround sound systems, connecting all of the speakers in your system with the correct polarity remains equally important to
preserve the proper ambience and frequency response of the program material.
Now find a visual difference between the two conductors of each molded pair of speaker wires. Differentiating marks can be a different color wire
(copper or silver); a strand of yarn in one conductor; thin, raised ribs on one part of the outer insulation; or a printed marking on one part of the outer
insulation. It doesn't matter which of the two strands go to the (+) and (–) on the speakers and amplifiers, as long as all speakers are connected
identically. When attaching to the back box, push on the top of the spring-loaded post and insert the bare wire into the hole on the side.

IN-CEILING INSTALLATION GUIDE

For New Construction
If you wish to pre-install a rough-in frame for the speakers before the drywall is installed in new construction, you will need to purchase the correct
rough-in frame kit for your loudspeaker model from your authorized JBL Synthesis dealer. Detailed mounting instructions are supplied with the
rough-in kit. After the drywall is installed, follow the installation instructions in For Existing Construction, below.
For Existing Construction
Note: The installation procedure is the same for all models covered by this manual.
1. Ensure that the drywall, plywood or other ceiling material is 1/2" - 2" (13mm - 51mm) thick and capable of withstanding the weight of the
speaker being installed.
Make sure to allow at least 3/4" (19mm) between the edge of the supplied installation template and any rafters or other obstructions behind the
wall, so the speaker's locking mechanism will have room to engage fully Perform an obstruction survey to be sure that there are no studs, lengths of
conduit, pipes, heating ducts or air returns in the ceiling cavity that will interfere with the speaker.
2. Determine the correct speaker location and use the template included with the speaker to mark the ceiling material.
3/4"
(19mm)
Mounting
3/4"
Opening
(19mm)
3/4"
(19mm)
Template
8