JBL ND310II User Manual

09/02

Technical Manual

ND310II

Northridge™Series

ACOUSTIC & ELECTRICAL SPECIFICATIONS:

• Nominal Impedance 8 ohms

• Max Amp Power 250 watts*

•Frequency Response 37Hz – 20kHz

• Sensitivity 91dB (1 watt @ 1 meter)

•Crossover Frequencies 1000Hz, 5000Hz

SYSTEM COMPONENTS:

• Enclosure ND310II (not for sale)

•Grille 337804-001

• Low-Frequency 10" (254mm) Polyplas

™

, shielded
Transducer (2) 335573-002
DC Resistance 10.8 ohms ±10%

• Mid-Frequency Transducer 4" (102) Polyplas

™

, shielded

335588-002

DC Resistance 4.4 ohms ±10%

• High-Frequency

3/4" (19mm) titanium-laminate
Transducer dome, shielded 338035-001
DC Resistance 3.0 ohms ±10%

•Crossover Network 335624-002

AURAL SWEEP TEST SPECIFICATIONS:

• System Aural Sweep Test 6.0V Input 30Hz to 20kHz

• L.F. Aural Sweep Test 6.0V Input 30Hz to 2kHz

• M.F. Aural Sweep Test 4.0V Input 500Hz to 6kHz

• H.F. Aural Sweep Test 2.83V Input 4kHz to 20kHz

PHYSICAL SPECIFICATIONS:

• Enclosure Dimensions 42" x 14-1/2" x 12"
(H x W x D) 1067mm x 368mm x 305mm

•Weight 55 lb/25kg (each)

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.

PACKAGING

JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797

ND310II Northridge

™

Series

ND310II SCHEMATIC

WIRING DIAGRAM

Upper/Lower
Foam
337799-001

Owner’s Manual
338061-001

Warranty Card
338322-001

OWNER’S

MANUAL

Survey Card
331384-001

Plastic Bag (2 pcs.)

Driver High
Frequency
338035-001

Driver Low
Frequency
335573-002

— +

Driver Mid
Frequency
335588-002

— +

+—

YELLOW

YELLOW/BLACK

WHITE

WHITE/BLACK

— +

+
—

Network
335624-002

Outer Carton
337798-001

GREEN

GREEN

GREEN/BLACK

GREEN/BLACK

L1

R1

7.5/10W

2.8mH

C2

4µF, 100v

GREEN/BLACK 21"

L2

640µH

GREEN 21"

GREEN 16"

GREEN/BLACK 16"

C1

15µF, 100v

WHITE/BLACK 34"

L3

300µH

YELLOW/BLACK 36"

WHITE 34"

YELLOW 36"

250
250

205
205

110

250

205

110

+

+

L.F.

–
–

–

M.F.

+

+

H.F.

–

RED

+IN

NPUT

BLACK

–IN

ND310II

Northridge™Series

ND310II Northridge

™

Series

09/02

JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797

EXPLODED VIEW

Screws (6)
#6 x .75"
HX HD BLK
908302-012

Screws (2)
PPH H/L 6-19 x 5/8 Znc
905402-010

Bar, Hold Down
338059-001

Tweeter
338035-001

Grille Retainers (10)
333249-001

Tweeter Gasket
335633-001

Flower Pot
334072-001

Enclosure
ND310

II

(not for sale)

Terminal Cup
335471-001

Screws (4)
#6 x 3/4" BLK
PPHD
63563

Faceplate
337793-001

Screws (16)
#8 x .75" HX HD
903802-012

Grille
337804-001

Screws (4)
#6 x 3/4" BLK,
PPHD 63563

Woofers (2)
335573-002

Midrange
335588-002

Screws (4)
#6 x 3/4" BLK,
PPHD 63563

Network
335624-002

Port Tube
337805-001

Feet (4)
335429-002

Bump-On
Pads (4)
330104-001

Screws (4)
#8 x 1"
HXS-HD BLK
72216