JBL N28 Bedienungsanleitung
SPEAKER PLACEMENT
MODEL:N28
5–6 ft.
MODELS:N38,ND310
As Front Speakers As Surround Speakers
OWNER’S GUIDE
PRODUCT LINE:
NORTHRIDGE SERIES
PRO SOUND COMES HOME™
MODEL NUMBERS:
N28, N38, ND310
™
m
Proper placement of the
speakers is an important
step in obtaining the most
realistic soundstage
possible. These recom-
mendations are for the
optimum placement of the
loudspeakers. Use these
placement recommendations
as a guide. Slight variations
will not diminish your
listening pleasure.
All of the Northridge Series
loudspeakers referred to in
this guide are video-shielded
and can safely be placed
near a television.
N28, N38, ND310 OM 8/5/99 4:51 PM Page 1
CONNECTIONTIPS
Speakers and electronics
terminals have
corresponding (+) and (–)
terminals. It is important to
connect both speakers
identically: (+) on the
speaker to (+) on the
amplifier and (–) on the
speaker to (–) on the
amplifier. Wiring “out of
phase” results in thin
sound, weak bass and a
poor stereo image.
SPEAKER CONNECTIONS
– +– +
– +
Speaker Outputs
LEFT
RIGHT
– +
N28, N38, ND310 OM 8/5/99 4:51 PM Page 2
Declaration of Conformity
We, JBL Europe A/S
Kongevejen 194B
DK-3460 Birkerød
DENMARK
Steen Michaelsen
JBL Europe A/S
Birkerød. DENMARK. 8/99
declare in own responsibility, that the loudspeakers
described in this owner’s manual are in compliance with
technical standards
EN 50081-1:1992
EN 50082-1:1992
If there is no sound from
any of the speakers:
• Check that receiver/
amplifier is on and that a
source is playing.
• Review proper operation
of your receiver/amplifier.
If there is no sound coming
from one speaker:
• Check the “Balance”
control on your receiver/
amplifier.
• Check all wires and
connections between
receiver/amplifier and
speakers.
• Make sure all wires are
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
If the system plays at low
volumes but shuts off as
volume is increased:
• Check all wires and
connections between
receiver/amplifier
and speakers.
• Make sure all wires are
connected. Make sure none
of the speaker wires are
frayed, cut or punctured.
• If more than one pair of
main speakers is being
used, check the minimum
impedance requirements of
your receiver/amplifier.
If there is no (or low) bass
output:
• Make sure the polarities
(+and–) of the left and right
“Speaker Inputs” are
connected properly.
If there is no sound from the
center speaker:
• Make sure that your
receiver’s “Center-Channel”
mode is in the ”Normal“ or
”Wide“ position. If it is in
the ”Phantom“ position, the
center speaker will not play.
• Check all connections
between processor/
amplifier and the center
speaker.
TROUBLESHOOTING
N28, N38, ND310 OM 8/5/99 4:51 PM Page 3
SPECIFICATIONS
N28 N38 ND310
Description: 2-Way 8" bookshelf 3-Way 8" floorstanding 3-Way dual 10"
floorstanding
Maximum
Recommended
Amplifier Power*: 150W 175W 250W
Nominal
Impedance: 8 Ohms 8 Ohms 8 Ohms
Sensitivity
(2.83V/1m):
90dB 90dB 91dB
Frequency
Response (–3dB):
50Hz – 20kHz 45Hz – 20kHz 37Hz – 20kHz
Crossover
Frequency: 4000Hz 1000, 5000Hz 1000, 5000Hz
High-Frequency 3/4" Titanium-laminate 3/4" Titanium-laminate 3/4" Titanium-laminate
Transducer: dome, shielded dome, shielded dome, shielded
Midrange
Transducer: NA 4" PolyPlas™, shielded 4" PolyPlas™, shielded
Low-Frequency
Transducer: 8" PolyPlas™, shielded 8" PolyPlas™, shielded 10" PolyPlas™, shielded
Baffles:
Low Diffraction, IsoPower™ Low Diffraction, IsoPower™ Low Diffraction, IsoPower™
Port: FreeFlow™ flared FreeFlow™ flared FreeFlow™ flared
Network: Straight-Line Straight-Line Straight-Line
Signal Path™ (SSP) Signal Path™ (SSP) Signal Path™ (SSP)
Terminals: 5-Way binding posts 5-Way binding posts 5-Way binding posts
Dimensions 19-1/2" x 12" x 9-1/2" 31-1/2" x 12" x 10-1/2" 42" x 14-1/2" x 12-1/2"
(H x W x D): 495mm x 305mm x 241mm 800mm x 305mm x 267mm 1067mm x 368mm x 318mm
Weight: 22.5lbs, 10.2kgs 35lbs, 15.9kgs 55lbs, 25kgs
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
8500 Balboa Boulevard, Northridge, CA 91329
800-336-4JBL (4525) (USA only)
www.jbl.com
©1999 JBL, Incorporated.
JBL is a registered trademark of JBL, Incorporated.
Part No.
N28/N38/ND310 O/G
PRO SOUND
COMES HOME™
*The maximum recommended amplifier power rating
will ensure proper system headroom to allow for
occasional peaks. We do not recommend sustained
operation at these maximum power levels.
Occasional refinements may be made to existing
products without notice but will always meet or
exceed original specifications unless otherwise stated.
N28, N38, ND310 OM 8/5/99 4:51 PM Page 4
Dieses Handbuch passt für folgende Modelle
2
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