JBL Northridge Series Technical Manual

Technical Manual
ND310
Northridge ™
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance
• Max Amp Power
• Frequency Response
• Sensitivity
• Crossover Frequencies
SYSTEM COMPONENTS:
• Enclosure
• Grille
• Low-Frequency
Transducer (2)
DC Resistance
• Mid-Frequency Transducer 4" (102) Polyplas
DC Resistance
• High-Frequency
Transducer
DC Resistance
• Crossover Network
PACKAGING
Owner's Manual
338061-001
Warranty Card
338322-001
OWNER'S
MANUAL
Survey Card
331384-001
Outer Carton
337798-001
JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
II
Series
8 ohms
250 watts*
37Hz – 20kHz
91dB (1 watt @ 1 meter)
1000Hz, 5000Hz
ND310 (not for sale)
II
337804-001
10" (254mm) Polyplas ™ , shielded
335573-002
10.8 ohms ±10%
™ , shielded
335588-002
4.4 ohms ±10%
3/4" (19mm) titanium-laminate
dome, shielded 338035-001
3.0 ohms ±10%
335624-002
Upper/Lower
Foam
337799-001
Plastic Bag (2 pcs.)
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test
• L.F. Aural Sweep Test
• M.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
Driver Mid
Frequency
335588-002
—
Driver Low
Frequency
335573-002
— +
GREEN
GREEN/BLACK
ND310
RED
+IN
INPUT
BLACK
–IN
R1
7.5/10W
6.0V Input 30Hz to 20kHz
6.0V Input 30Hz to 2kHz
4.0V Input 500Hz to 6kHz
2.83V Input 4kHz to 20kHz
42" x 14-1/2" x 12"
1067mm x 368mm x 305mm
55 lb/25kg (each)
Network
— +
335624-002
YELLOW
YELLOW/BLACK
+
—
+
WHITE
WHITE/BLACK
— +
GREEN
GREEN/BLACK
SCHEMATIC
II
L1
2.8mH
GREEN 21"
GREEN 16"
GREEN/BLACK 21"
GREEN/BLACK 16"
C1
L2
15µF, 100v
640µH
WHITE/BLACK 34"
WHITE 34"
C2
4µF, 100v
YELLOW 36"
L3
300µH
YELLOW/BLACK 36"
+
250
+
250
L.F.
–
205
205 –
–
110
M.F.
+
250
+
205
H.F.
–
110
09/02