JBL Northridge E250P Käyttöohje
Lue alta 📖 käyttöohje suomeksi merkille JBL Northridge E250P (8 sivua) kategoriassa Subwoofer. Tämä opas oli hyödyllinen 6 henkilölle ja sai 4.5 tähden keskimäärin 2 käyttäjältä
Sivu 1/8
E150P, E250P
NORTHRIDGE™E SERIES
OWNER’S GUIDE
®
2
READ FIRST!
Important Safety Precautions!
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near
water.
6. Clean only with a dry cloth.
7. Do not block any ventilation
openings. Install in accordance
with the manufacturer’s
instructions.
8. Do not install near any heat
sources such as radiators, heat
registers, stoves or other appara-
tus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose
of the polarized or grounding-type
plug. A polarized plug has two
blades with one wider than the
other. A grounding-type plug has
two blades and a third grounding
prong. The wide blade or the third
prong are provided for your safety.
If the provided plug does not
fit into your outlet, consult an
electrician for replacement of the
obsolete outlet.
10. Protect the power cord from
being walked on or pinched, par-
ticularly at plugs, convenience
receptacles and the point where
they exit from the apparatus.
11. Only use attachments/
accessories specified by the
manufacturer.
12. Use only with the cart,
stand, tripod, bracket or
table specified by the
manufacturer or sold
with the apparatus.
When a cart is used, use caution
when moving the cart/apparatus
combination to avoid injury from
tip-over.
13. Unplug this apparatus during
lightning storms or when unused
for long periods of time.
14. Refer all servicing to qualified
service personnel. Servicing is
required when the apparatus has
been damaged in any way, such as
power-supply cord or plug is dam-
aged, liquid has been spilled or
objects have fallen into the appa-
ratus, the apparatus has been
exposed to rain or moisture, does
not operate normally, or has been
dropped.
15. Do not use attachments not
recommended by the product
manufacturer, as they may cause
hazards.
16. This product should be oper-
ated only from the type of power
source indicated on the marking
label. If you are not sure of the
type of power supply to your home,
consult your product dealer or
local power company. For prod-
ucts intended to operate from bat-
tery power, or other sources, refer
to the operating instructions.
17. If an outside antenna or cable
system is connected to the prod-
uct, be sure the antenna or cable
system is grounded so as to pro-
vide some protection against volt-
age surges and built-up static
charges. Article 810 of the
National Electrical Code, ANSI/
NFPA 70, provides information with
regard to proper grounding of the
mast and supporting structure,
grounding of the lead-in wire to
an antenna discharge unit, size of
grounding conductors, location of
antenna-discharge unit, connec-
tion to grounding electrodes, and
requirements for the grounding
electrode. See Figure A.
18. An outside antenna system
should not be located in the vicin-
ity of overhead power lines or
other electric light or power cir-
cuits, or where it can fall into such
power lines or circuits. When
installing an outside antenna sys-
tem, extreme care should be taken
to keep from touching such power
lines or circuits, as contact with
them might be fatal.
19. Do not overload wall outlets,
extension cords, or integral con-
venience receptacles, as this can
result in a risk of fire or electric
shock.
20. Never push objects of any kind
into this product through openings,
as they may touch dangerous volt-
age points or short-out parts that
could result in a fire or electric
shock. Never spill liquid of any
kind on the product.
21. Do not attempt to service this
product yourself, as opening or
removing covers may expose you
to dangerous voltage or other haz-
ards. Refer all servicing to quali-
fied service personnel.
22. When replacement parts are
required, be sure the service tech-
nician has used replacement parts
specified by the manufacturer or
that have the same characteristics
as the original part. Unauthorized
substitutions may result in fire,
electric shock or other hazards.
23. Upon completion of any service
or repairs to this product, ask the
service technician to perform
safety checks to determine that
the product is in proper operating
condition.
24. The product should be mounted
to a wall or ceiling only as recom-
mended by the manufacturer.
Antenna Lead-In Wire
Ground Clamp
Antenna Discharge Unit (NEC Section 810-20)
Grounding Conductors (NEC Section 810-21)
Electric Service Equipment
Ground Clamps
Power Service Grounding Electrode System
(NEC Art 250, Part H)
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: To reduce the risk of electric shock,
do not remove cover (or back).
No user-serviceable parts inside.
Refer servicing to qualified service personnel.
CAUTION: To prevent electric shock,
do not use this (polarized) plug with
an extension cord, receptacle or other outlet
unless the blades can be fully inserted to
prevent blade exposure.
The lightning ash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure that may be of sucient magnitude to constitute
a risk of electric shock to persons.
Figure A.
Example of Antenna Grounding as
per National Electrical Code,
ANSI/NFPA 70
SPEAKER PLACEMENT
• As a general rule, bass
response increases as a
subwoofer is placed closer
to a wall. Therefore, bass
output is maximized when
the subwoofer is placed in a
corner.
• It is also recommended that
the subwoofer be positioned
along the same wall as the
front loudspeakers.
Low-frequency sounds are nor-
mally omnidirectional, meaning
the listener can’t tell where they
are
generated
from. However,
frequencies between 75Hz and
150Hz can be localized, espe-
cially at higher volume levels.
Positioning your subwoofer as
recommended will provide the
most natural soundstage and
imaging from your loudspeaker
system.
Remember that these are just
guidelines. Since every listening
room is different, JBL strongly
recommends experimenting
with the positioning of your
subwoofer to obtain the most
pleasing results in your room.
One technique that can help
you find the ideal subwoofer
location is to temporarily place
the subwoofer near the main
listening location. Then move
around the room and determine
where you hear the most
pleasing bass performance.
This would then be the ideal
location for the subwoofer.
SPEAKER CONNECTION
When we designed the
E150P and E250P powered
subwoofers, our goal was
to offer the user the best pos-
sible performance combined
with the most flexible and
complete installation options.
Please look over the following
three examples to determine
which description best
matches your system and
follow the corresponding
hookup instructions.
To use the binding-post
speaker terminals with bare
wire, unscrew the collar until
the hole through the center
post is visible under the collar.
Insert the bare end of the wire
through the hole in the post,
then screw the collar back
down until the connection is
tight. The holes in the center
of the collars are intended for
banana-type connectors.
Speakers and electronics termi-
nals have corresponding positive
(+) and negative (–) terminals.
It
is important to connect both
speakers identically:
positive (+) on the speaker
to positive (+) on the amplifier
and negative (–) on the speaker
to negative (–) on the amplifier.
Wiring “out of phase” results in
thin sound, weak bass and a
poor stereo image.
NOTE: The speaker-level con-
nection method described on
page 4 is not a preferred con-
nection and should only be
resorted to if your receiver/
processor does not have a
line-level or subwoofer output.
The customer is responsible for
proper connections, and any
damage to JBL or other equip-
ment due to improper connec-
tions will not be covered by
your JBL warranty. Consult with
your JBL dealer or an audio-
installation expert if you have
any questions about how to
connect your subwoofer using
the speaker-level inputs.
3
THANK YOU FOR CHOOSING JBL
For more than 50 years, JBL
has been involved in every
aspect of music and film
recording and reproduction,
from live performances to
the recordings you play in
your home, car or office.
We’re confident that the JBL
system you have chosen will
provide every note of enjoy-
ment that you expected –
and that when you think
about purchasing additional
audio equipment for your
home, car or office, you will
once again choose JBL.
Please take a moment to
register your product on our
Web site at www.jbl.com.
This enables us to keep you
posted on our latest advance-
ments, and helps us to better
understand our customers
and build products that
meet their needs and
expectations.
JBL Consumer Products
Tuotetiedot
| Merkki: | JBL |
| Kategoria: | Subwoofer |
| Malli: | Northridge E250P |
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