JBL 250Ti Bruksanvisning

JBL högtalare 250Ti

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1
250Ti Jubilee Instruction Manual
2
Contents
The 250Ti Jubilee............................................................. 2
Placement......................................................................... 2
Speaker Wire.................................................................... 3
Connections ..................................................................... 3
Amplifier Power Recommendations................................ 5
Biased Crossover Battery Replacement........................... 6
Grille ................................................................................. 6
General Care..................................................................... 7
Service.............................................................................. 7
Specifications................................................................... 7
The 250Ti Jubilee
A definitive expression of quality and craftsmanship, the
250Ti Jubilee is the most advanced JBL loudspeaker built
for the home. No effort has been spared and no perfor-
mance factor has been overlooked in building the most
accurate loudspeaker possible, from the singular shape
of the enclosure to the design of the level controls. The
woodworking of the 250Ti Jubilee – with each hand-
detailed enclosure carefully crafted of dense fiberboard
and finished in high-gloss lacquer – complements the
engineering.
The 250Ti Jubilee will sound as good as your equip-
ment and program source will allow. Imaging is precise
and stable. Frequency response, both on and off axis, is
nearly ruler-flat to well beyond the audible bandwidth.
Distortion is held to levels more typical of fine electronics
than of loudspeakers.
Despite its sophistication, the 250Ti Jubilee is easy to
set up properly. Please read this manual thoroughly before
beginning. The instructions and information it contains will
ensure a trouble-free setup and will allow you to realize the
full potential of your system.
Placement
For the best performance, place your 250Ti Jubilee speakers
at least three feet from any walls, and equidistant from your
primary listening position (there is no designated right or
left speaker). The location of your primary listening position
is determined by the distance between the speakers; the
area created between the loudspeakers and the listening
position should ideally equal a 40- to 60-degree angle. For
example, if the loudspeakers are 2.4m (8 feet) apart, your
listening position should be 2.4 – 3.65m (8 to 12 feet) from
each speaker. To widen the area in which the best stereo
image will be perceived, turn the speaker to face the primary
listening position.
3
Speaker Wire
Speaker wire and interconnecting cables are an important
component in an audio system. The 250Ti Jubilee system
is internally wired with specially designed cable manufac-
tured for JBL by Monster Cable®. The same care that was
taken in selecting internal system wiring should be taken
in selecting and applying the cables that will connect the
various system components. Your 250Ti Jubilee dealer
has the experience and knowledge to recommend suitable
interconnects and speaker wire to best complement your
system.
The following gauge wires (minimum requirements) are
recommended:
Gauge Distance
1 mm2 (18 AWG) Up to 5 meters (15 feet)
1.5 mm2 (16 AWG) Up to 10 meters (30 feet)
2 mm2(14 AWG) Up to 25 meters (75 feet)
The length of the wire will depend on the location of the
loudspeakers and amplifier. Since you should listen care-
fully to your loudspeakers
before
determining their final
position, you may want to arrange a temporary wiring
layout that allows you to move the loudspeakers and
experiment with their placement. After you have deter-
mined the best location for the system, permanent con-
nections may then be made using the shortest cable runs
possible. Use the same length wires for both speakers.
In some systems, the amplifier may be located near
the loudspeaker system and connected using a short
length of wire. Although such a hookup requires a
relatively long cable between the preamplifier and main
amplifier, the benefit of the short amplifier-to-loudspeaker
connection often outweighs any drawbacks.
Connections
WARNING: Be sure your amplifier is turned off before
connecting or disconnecting the loudspeakers. Making con-
nections while the amplifier is operating could seriously
damage the loudspeaker system and void the warranty. The
amplifier must also be turned off before connecting or dis-
connecting cables at the amplifier or preamplifier inputs.
Before you begin.
Examine your speaker wire carefully.
One conductor is solid, and the other is differentiated
by a ridge, printed marking or color stripe. Assign one
conductor positive (+) and the other negative (–) polarity,
and always connect the designated conductors to their
respective amplifier and loudspeaker terminals, positive-
to-positive, and negative-to-negative. This will ensure that
the loudspeakers will work together (in phase) rather than
in opposition. (Connecting the loudspeakers out of phase
will not cause damage but will result in reduced low-
frequency output and lack of stereo effect.)

Produktspecifikationer

Varumärke: JBL
Kategori: högtalare
Modell: 250Ti

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