JBL 328CT, 322CT, 321CT, 312CS ACCESSORIES, Maintenance & Contacting JBL, Optional Accessories

Models: 312CS 300 Series 328C 322CT 328CT 322C 321CT 321C

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ACCESSORIES, MAINTENANCE & CONTACTING JBL

Painting the Grille -- Control 300 Series Grilles feature a powder coated, satin finish paint (RAL 9016 - Pantone equivalent 11-0602TPX) and can be painted to match any decor. This should only be done when the grilles have been removed from their loudspeaker and back box / can assembly.

For best results, a spray paint technique is recommended. If the grille is rolled or brush painted, the grille perforations may become clogged with paint and poor sound quality may result.

Maintenance -- No maintenance is required when assembled in accordance with the instructions and wiring guidelines described in this manual.

Optional Accessories

MTC-RG6/8 Grille - a round, contoured grille for use with the Control 328C/CT Loudspeaker System.

MTC-300BB8 Backbox - a round, one cubic foot (nominal, back- box for use with the Control 328C/CT Loudspeaker System.

MTC-300SG12 Grille - a square, contoured grille for use with the Control 321C/CT, 322C/CT & 312CS Loudspeaker Systems.

MTC-300BB12 Backbox - a round, three cubic foot (nominal), for use with the Control 321C/CT, 322C/CT & 312CS Loudspeaker Systems.

MTC-300T150 Transformer - a 100V, 150W (plus 75W at 70V) transformer for applications requiring high power.

Contacting JBL Professional -- These products are designed and backed by JBL Professional, the world leader in professional sound reinforcement. For complete warranty information, to order replacement parts or to ask for clarifications to this manual, contact JBL Professional.

Within the United States:

Applications Department, JBL Professional

8400 Balboa Blvd., PO Box 2200

Northridge, CA 91329 USA

In the USA you may call Monday through Friday 8:00am to 5:00pm Pacific Coast Time (818) 894-8850.

Outside the USA:

Contact the JBL Professional Distributor in your country.

A list of JBL Professional Distributors and US Service Centers can be obtained from the JBL Professional website at: www.jblpro.com

10 JBL Professional Control 300 Series

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JBL 328CT, 322CT, 321CT, 300 Series, 312CS manual ACCESSORIES, Maintenance & Contacting JBL, Optional Accessories

312CS, 300 Series, 328C, 322CT, 328CT specifications

JBL, a well-renowned name in the audio industry, has long been associated with innovation and superior sound quality. Among its impressive lineup, the JBL 321C, 321CT, 322C, 328CT, and 322CT stand out for their remarkable features, cutting-edge technologies, and versatile characteristics, ensuring an exceptional listening experience.

The JBL 321C is designed with a sleek, modern aesthetic, making it a stylish addition to any setting. This compact speaker delivers clear and balanced sound, thanks to its advanced driver technology and well-engineered acoustics. The inclusion of a high-frequency driver enhances the overall soundstage, providing crisp highs and detailed mid-range frequencies. This model is perfect for smaller spaces, ensuring that users still experience robust audio performance without overwhelming their environment.

Moving to the JBL 321CT, this variant introduces the convenience of a built-in transformer, making it suitable for commercial installations where efficient power usage is key. Like its counterpart, it boasts exceptional audio fidelity, ensuring that it can easily adapt to various applications, such as retail spaces or hospitality environments. Its reliability and sound quality make it a smart choice for professionals seeking a robust audio solution.

The JBL 322C and 322CT models further enhance this series by incorporating dual-speaker configurations. This design philosophy increases sound dispersion and volume output. With the 322C, users can expect a rich audio experience that fills larger rooms, making it ideal for home theaters and other entertainment spaces. Meanwhile, the 322CT expands functionality with its transformer setup, making it a prime choice for commercial use while delivering excellent sound quality.

Lastly, the JBL 328CT stands as a flagship option in the series. This model combines advanced technologies, such as a powerful woofer and an optimized high-frequency driver, to produce an impressive sound profile. It features an enhanced bass response, making it perfect for music enthusiasts who crave depth in their audio experience. The 328CT is designed for both home and professional environments, offering flexibility without compromising sound fidelity.

All these models emphasize JBL’s commitment to high-quality sound, reliability, and aesthetics. Their ability to deliver clarity across diverse music genres, combined with their versatility for both residential and commercial use, make the 321C, 321CT, 322C, 328CT, and 322CT exceptional choices for anyone looking to enhance their audio experience. Whether in a cozy living room or a bustling public venue, these speakers promise to deliver unparalleled sound quality that embodies the true essence of JBL's audio legacy.