JBL N28 Manuel utilisateur

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

™

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

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

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