JBL manual JBL N24II/N24AWII Northridge Series, Exploded View, N24 II/N24AW

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JBL N24II/N24AWII NorthridgeSeries

JBL Loudspeaker Troubleshooting/Repair Tips

Most customers prefer to do simple loudspeaker repairs themselves. By following the steps below, a majority of loudspeakers can be returned to their original factory performance with minimum effort. Choose the example that best describes the problem you are experiencing.

Problem 1: No sound or distorted sound from one loudspeaker in a pair (or set)

Connect the dead/distorting loudspeaker to a different amplifier channel (one that had a functioning loudspeaker connected to it). If it functions normally, the problem is not loudspeaker-related. If the loudspeaker still makes no sound or sounds distorted, a wire may have become loose or disconnected, the network (also known as a crossover) may be defective, the drivers (woofer, tweeter, etc.) may be defective or, in very rare cases, all may be defective.

Refer to the wiring diagram and exploded view below. The network is a small circuit board found on the inside of the terminal cup, or mounted to an inside wall of the enclosure. It sends low-frequency sounds to the woofer, high-frequency sounds to the tweeter and, if applicable, mid-frequency sounds to the midrange driver. Make sure all wires are secure and connected. Look for components on the network that look burnt, “bulged,”

or abnormal. If everything looks normal, connect the network to the drivers from another matching loudspeaker. MAKE SURE you attach the correct wires to each driver – mid- and low-frequency sounds can damage the tweeter! If there is still no sound or distorted sound, the network is defective. If there is clean undistorted sound, the drivers are defective.

Problem 2: No sound or distorted sound from one or more (but not all) drivers in an enclosure

Remove the problem driver(s) from the enclosure and make sure all wires are secure and connected. If they are, proceed with the following test: Woofer or midrange driver – Connect the driver’s + and – input terminals directly to the loudspeaker wires from your receiver/amplifier and play some music at a reasonable volume. If the driver now sounds normal (produces a clean, undistorted sound), the network is most likely defective. Tweeter – Replace the tweeter with a functioning tweeter from another loudspeaker. If the tweeter now functions normally (produces clean, undistorted sound), the original tweeter is defective. If the replacement tweeter also sounds distorted or produces no sound, the network is most likely defective.

Problem 3: Loudspeakers distort, rattle or pop at higher volumes

This is usually NOT a loudspeaker problem. Common causes are too much power (playing the loudspeakers too loud and causing them to distort), an amplifier with not enough power (the amplifier can’t produce the required volume without distorting), excessive equalization (turning the tone controls too far clockwise, and/or engaging the loudness/bass boost button on your receiver) or some combination of the above. If only one loudspeaker is exhibiting the problem, and you’re confident that it’s not caused by too little power/too much power/excessive equalization, see solutions for Problems 1 and 2.

WIRING DIAGRAM

High-Frequency Driver

N24II/N24AWII

EXPLODED VIEW

N24AWII White – (4) WI0406-W

 

Grille Retainers N24II Gray (4) – WI0406

A73C20DM-03DT

+

 

Network

 

XR0183

 

BLUE

 

WHITE

Low-Frequency Driver

N24II - NS-W4SSII-1

N24AWII - NS-W4SS-03II-1

-

+

 

GREEN

 

WHITE

 

Gasket, Tweeter

 

WI0085

 

 

Tweeter

 

 

N24II/N24AWII

 

 

A73C20DM-03DT

 

 

Screws (4)

 

 

#8 x 5/8" Allen Head

 

 

A06-T41611

 

 

Gasket, Woofer

 

 

P04095

 

Screws (4)

 

 

#8 x 5/8" Allen Head

 

Network

A06-T41611

 

 

XR0183

 

Screw (1)

 

 

 

5/32" x 7/32" PPH

 

A06-M40603

 

 

Woofer

Woofer Trim Ring

N24II NS-W4SSII-1

P04096-01

N24AWII NS-W4SS-03II-1

Grille

N24II (gray) –

X04085-01

Grille (outdoors)

N24AWII (off-white)

X04086-01

Red and Black

Binding Posts

N24II – T761

N24AWII T761-1

Note: A Phillips screwdriver and 3mm Allen wrench (hex key) are required to service this product

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Contents JBL N24II/N24AWII Northridge Series JBL Loudspeaker Troubleshooting/Repair TipsExploded View N24 II/N24AW
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N24AWII, N24II specifications

JBL is renowned for its commitment to delivering high-quality audio products, and the JBL N26AWII, N24AWII, and N24II models are no exception. Designed primarily for versatile outdoor and indoor use, these speakers exhibit exceptional sound quality, durability, and a range of features that cater to both casual listeners and audiophiles alike.

The JBL N26AWII is an all-weather loudspeaker that combines high performance with a sleek design. Its 6.5-inch woofer and dual 0.5-inch Titanium-laminate tweeters deliver a rich, dynamic sound stage, ensuring that every note is heard clearly, regardless of the environment. The speaker’s Power Handling capacity of up to 150 Watts ensures that it can handle a wide range of audio inputs, making it suitable for both music and vocal applications in various settings. The enclosure is constructed from high-quality materials that are UV resistant and capable of enduring harsh weather conditions, making the N26AWII perfect for outdoor patios or gardens.

On the other hand, the JBL N24AWII speaker offers a compact and powerful solution that maintains the same level of sound excellence as its larger counterpart. Featuring a 4-inch woofer and dual 0.5-inch tweeters, the N24AWII provides robust audio performance while being easy to mount and integrate into smaller spaces. The speaker is designed with a weather-resistant enclosure that protects it from moisture, dirt, and UV rays, thus enhancing its longevity.

Lastly, the JBL N24II, while somewhat smaller, does not fall short in performance. With its 4-inch PolyPlas woofer and 0.75-inch aluminum tweeter, it produces a clear and balanced sound that suits any room or outdoor setup. The N24II is also engineered for durability, featuring all-weather construction that enhances its performance in various environments.

All three models are equipped with JBL’s proprietary technologies that optimize sound quality and ensure consistent performance across different audio sources. The performance-oriented designs coupled with multiple mounting options make these speakers suitable for both residential and commercial applications. Whether one’s preference leans toward enjoying music at home or amplifying sound in outdoor venues, the JBL N26AWII, N24AWII, and N24II deliver reliable, high-fidelity sound experiences that stand the test of time.