Introduction and Features

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INTRODUCTION

Congratulations on your purchase of this JBL Synthesis® SDEC Digital Equalizer! You have chosen a product that embodies the best of what JBL, Inc., has discovered about the emotional power of audio reproduction in more than sixty years of preeminence in the field. This Digital Equalizer has been designed and crafted to provide the user with a high level of sonic performance. Special attention has been paid to minimize the number of components in the audio signal path, resulting in extremely low distortion, excellent transient response and wide dynamic range. Synthesis® products set new benchmarks in audio technology, and, when used as part of a complete JBL Synthesis system, will bring the ambience and acoustics of some of the world’s greatest concert halls and theaters into your home. To obtain the best performance from this Digital Equalizer, please be sure to completely read this user’s manual and use the SDEC Digital Equalizer only in accordance with its instructions.

From its inception, JBL Synthesis has been the answer to the questions: “How do you build a state-of-the-art home theater system and make it sound superb in every installation?” and “How can you be sure all the hardware is compatible?” These were the big questions Synthesis components answered fifteen years ago. Today, JBL Synthesis systems move beyond the competition yet again. The JBL Synthesis Digital Equalizer (SDEC) is a 12-channel-in/20-channel-out 24-bit, 96kHz digital audio signal processor. Unlike nearly all other audio components on the market, the SDEC has been designed to work specifically with other Synthesis system components. This narrow application focus has allowed JBL engineers to design a product with far fewer compromises, resulting in unequalled system performance. By reading the following pages, you will become familiar with the technological features and unique capabilities incorporated within the SDEC and available nowhere else.

Until now, anything beyond the most basic equalization has been impossible without expensive acoustical instru- mentation and the knowledge to use it. This is why, traditionally, equalizers have been general-purpose devices, designed to be applicable to any audio system, and usually doing more harm than good! Add to this situation the fact that equalizing a speaker system by ear is truly a futile exercise. This helps to account for the generally low acceptance of equalizers outside of professional audio applications.

FEATURES

•Up to 256 bands of fully parametric EQ

•Built-in crossover for bi-amp outputs (SDEC-4500 only)

•Delay adjustment for each output

•Delay adjustment for driver compensation

•Screen compensation

•Driver compensation

•Web-based Java remote for basic system setup

•Windows application for advanced system setup

•Custom configuration possible

•Remote VPN monitoring

•Four subwoofer outputs (SDEC-4500 only)

•Three pairs of side speaker outputs for large rooms with multiple rows of seating (SDEC-4500 only)

•24-Bit DSP

•96kHz sample rate on all inputs and outputs

•Balanced or single-ended (unbalanced) inputs and outputs

SDEC-4500P, SDEC-4500, SDEC-4500X specifications

The JBL SDEC-4500, SDEC-4500X, and SDEC-4500P represent a significant evolution in the world of digital signal processors (DSP) designed specifically for professional audio applications. These products are tailored to enhance sound quality and ensure optimal performance in various environments, including concert halls, clubs, and large venues.

The JBL SDEC-4500 is engineered to provide comprehensive processing capabilities that allow users to take full control of audio signals. One of its main features is its 32-bit floating-point processing, which ensures high precision and accuracy in audio handling. This feature is essential for maintaining audio integrity, especially in complex sound systems that require extensive tuning and adjustments.

The SDEC-4500X model builds upon the capabilities of the SDEC-4500, incorporating extended connectivity options. It includes multiple analog and digital input/output configurations, making it versatile for various setups. The device is equipped with advanced filter algorithms that enable users to implement precise EQ settings and dynamic control, thus tailoring the audio output to their specific needs and room acoustics.

The SDEC-4500P, on the other hand, is designed for portability and ease of use. This model retains the core processing features of the SDEC-4500 series while focusing on user-friendly interfaces. It includes a touchscreen display that allows for intuitive operation, enabling sound engineers to make adjustments on-the-fly during performances.

All models in the SDEC-4500 series feature comprehensive protection schemes, ensuring reliability and durability in demanding environments. They offer full matrix routing capabilities, allowing for flexible signal flow and management across various audio channels. Moreover, the built-in latency adjustment features help accommodate different system setups, optimizing performance while maintaining sound quality.

In addition to their core features, the SDEC-4500 series also supports remote control capabilities, allowing users to manage settings from a distance, which is beneficial for live sound situations. The integration of advanced technologies, such as the proprietary JBL DSP algorithms, ensures that the audio output meets professional standards while remaining adaptable to different applications.

In conclusion, the JBL SDEC-4500, SDEC-4500X, and SDEC-4500P showcase cutting-edge technology and design tailored for professional sound reinforcement. Their array of features, combined with robust performance and flexibility, makes them invaluable tools for audio professionals across various sectors. Whether in studio settings or live events, these DSPs elevate sound management to new heights.