JBL N24II - User Manual

JBL Consumer Products, 250 Crossways Park Dr., Woodbury, New York 11797
Technical Manual
N24II/N24AWII
Northridge
™
Series
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
• Nominal Impedance 8 ohms
• Max Amp Power 100 watts*
• Frequency Response 75Hz – 20kHz
• Sensitivity 86dB (1 watt @ 1 meter)
• Crossover Frequency 3000Hz
SYSTEM COMPONENTS:
• Enclosure N24II/24AWII (not for sale)
• Grille N24
II X04085-01 (gray)
N24AW
II X04086-01 (off-white)
• Low-Frequency Transducer N24
II 4" (102mm) PolyPlas,
™
shielded (NS-W4SSII)
N24AW
II 4" (102mm) WeatherPlas
™
(NS-W4SS-03II)
DC Resistance 4.8 ohms ±10%
• High-Frequency Transducer 3/4" (19mm) Titanium-laminate
dome A73C20DM-03DT
DC Resistance 3 ohms ±10%
• Crossover Network XR0183
AURAL SWEEP TEST SPECIFICATIONS:
• System Aural Sweep Test 6.0V input 70Hz to 20kHz
• L.F. Aural Sweep Test 6.0V input 70Hz to 4kHz
• H.F. Aural Sweep Test 2.83V input 2kHz to 20kHz
PHYSICAL SPECIFICATIONS:
• Enclosure Dimensions: 9-1/2" x 6-1/4" x 4-3/4"
(H x W x D) 241mm x 159mm x 121mm
• Weight 9.0 lb/4.1kg (sold in pairs)
WARRANTY:
• Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating will
ensure proper system headroom to allow for special peaks.
We do not recommend sustained operation at these maximum
power levels.
Owner's Manual
AI0455
Warranty Card
AT0341
Survey Card
AI0193-01
Manual for Bracket
AI0463
Instructions for Feet
AI0464
OWNER'S
MANUAL
Outer Carton N24 II
WB2216
N24AW
II
WB2217
Upper/Lower
Foam
WP0373
Plastic Bag (2 pcs.)
The N24 II is also part of the NPS1 II system,
consisting of (4) N24
II and (1) N-Center II.
Rubber Feet
(8-pc. set)
WI0742-B
PACKAGING
6/04
N24II/N24AWII Northridge
™
Series
– +
- +
High-Frequency Driver
N26AW
II –
A12B20DM-03DT
Low-Frequency Driver
NS-W6.25SS-03II
Network
XR0182
GREEN
WHITE
BLUE
WHITE
L.F.
+IN
–IN
INPUT
+
–
H.F.
–
+
250
205
205
110
L1
1.2mH
C1
6.0 μF
R1
C2
2.5μF
RED
BLACK
GREEN
WHITE
BLUE
WHITE
value may be 3.9 ohm
4.3 ohm (recommended)
5.1 ohm
(Revisions)
N24II/N24AWII SCHEMATIC
WIRING DIAGRAM

Summary

Acoustic and Electrical Specifications

Nominal Impedance

The standard electrical resistance of the speaker system.

Max Amp Power

Maximum recommended amplifier power for optimal system performance.

Frequency Response

The range of audio frequencies the speaker can reproduce.

Sensitivity

Sound pressure level produced at a specified distance and power input.

Crossover Frequency

The frequency point where audio signals are divided between speaker drivers.

System Components

Enclosure and Grille

Details on the speaker cabinet, grille, and associated part numbers.

Low-Frequency Transducer

High-Frequency Transducer

Crossover Network

Wiring Diagram and Schematic

Wiring Diagram

Schematic

Exploded View and Part Identification

Exploded View Diagram

Component Part Numbers

JBL N24II Specifications

General

Type	2-Way Bookshelf Speaker
Configuration	2-Way
Woofer Size	4 inches
Tweeter Size	0.75 inches
Frequency Response	75 Hz - 20 kHz
Sensitivity	86 dB
Impedance	8 ohms
Power Handling	100W
Tweeter Material	Titanium laminate
Woofer Material	PolyPlas