JBL LX-SERIES INSTRUCTION MANUAL
Congratulations on choosing JBL LX Series loudspeakers.
JBL LX series loudspeakers are designed using the technology that have made
JBL the worlds most famous brand of loudspeakers.
Wherever loudspeakers are important, integral parts of musical performances - in
opera-houses, in football stadiums or at rock concerts - JBL is the loudspeaker brand of
choice.
By using only the best available materials and devoting careful attention to details,
JBL is certain that your JBL speakers will provide many years of excellent performance.
The instructions in this manual will help you realize the full potential of your
loudspeakers.
JBL LX Series loudspeakers are designed to produce the best possible sound
when located at some distance to the walls and corners of the room. Approximately 1 m
is preferable. Placement in the corners or close to the walls of the room will increase the
amount of bass, but not necessarily the quality of the bass. If such placement is
unavoidable it is recommended that you use the tone controls on your amplifier or
receiver to reduce the bass.
The bookshelf-size loudspeakers should not be placed on the floor, but will greatly
benefit from placement on an open, rigid stand 35-50 cm high, which will place the high
frequency unit at ear level, which is important for the creation of the best possible stereo
image. Further the placement of the speaker on a high quality stand will improve the
accuracy of the bass, which again will lead to the most dynamic, expressive reproduction.
We strongly advice that you consult your JBL dealer for advice and demonstration.
Should you want to mount you JBL LX speaker on the wall it is recommended to
use a strong bracket. A distance of 2-4 cm from the wall will allow the rear panel
mounted reflex port to work, while complete closing of the port will reduce the deepest
bass.
For the best stereo imaging the two loudspeakers in the stereo system should be
placed at the same distance from your listening position, and separated by an angle of
40 to 60° (see illustration). For example, if your listening position is 2,4-3,6 m from each
speaker, the two speakers should be 2-2,4 m apart.
Since every room is different, and since room acoustics is very important to the
overall sound, we strongly recommend that you experiment to find the placement that
gives you the most pleasing results.
LISTENING
POSITION
PLACEMENT
40°-60°
CONNECTIONS
To connect the loudspeaker systems to your
amplifier or receiver you should use two-
conductor insulated wire. We recommend
1,5mm
2
wire as a minimum size for cable
runs of appx. 5 m. If your loudspeakers has
to be placed at greater distance from your
amplifier or receiver you should use heavier
wire. Too thin wire or too long wire runs can
can result in the sound from the
loudspeaker being different than intended,
but will not do other harm than that. We
recommend that you consult your dealer,
who will be happy to assist you in this
matter.
For each channel, the red terminal on the