JBL Northridge N28II Technical Manual

Technical Manual
N28
II
Northridge ™
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
• Max Amp Power
• Frequency Response
• Sensitivity
• Crossover Frequency

SYSTEM COMPONENTS:

• Cabinet
• Grille
• Low-Frequency Transducer 8" (203mm) PolyPlas
DC Resistance
• High-Frequency Transducer 3/4" (19mm) titanium-laminate
DC Resistance
• Crossover Network
PACKAGING
OWNER'S
MANUAL
Owner's Manual
338061-001
Warranty Card
338322-001
Survey Card
331384-001
Felt Pads
335634-001
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
Series
8 ohms
150 watts*
50Hz – 20kHz (–3dB)
90dB (1 watt @ 1 meter)
4000Hz
N28 (not for sale)
II
337784-001
™ cone,
shielded (335469-002)
5.2 ohms ±10%
dome, shielded (338035-001)
3.0 ohms ±10%
335589-002
Upper/Lower
Foam
337767-001
Plastic Bag (2)
Outer Carton
(Black)
337766-001
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
• L.F. Aural Sweep Test
• H.F. Aural Sweep Test
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions
(H x W x D)
• Weight
WARRANTY:
• Refer to Warranty Statement packed with each product.
* 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.

WIRING DIAGRAM

Driver High
Frequency
338035-001
YELLOW/BLACK
Driver Low
Frequency
335469-002
—
N28 SCHEMATIC
II
RED
+IN
INPUT
BLACK
–IN
R2
1.8 OHM/10W
6.0V Input 50Hz to 20kHz
5.0V Input 50Hz to 5kHz
2.83V Input 3kHz to 20kHz
19-1/2" x 10-1/2" x 11-1/4"
495mm x 267mm x 286mm
36 lb/16.4kg (sold in pairs)
Network
335589-002
YELLOW
+
GREEN
GREEN/BLACK
L3
0.2µH
GREEN 14"
GREEN/BLACK 14"
C2
4µF/100v
YELLOW 18"
L4
0.1mH
YELLOW/BLACK 18"
250 +
L.F.
205 –
+
205
H.F.
–
110
09/02