JBL Synthesis SDEC-1000/ SDEC-2500 Installation Guide:
The SDEC-1000/2500 is a dealer installed digital equalizer and time correction unit. It is part of the Synthesis home
theater package. This Installation Guide will supply all the necessary information for the operation of the SDEC-1000 with
Synthesis 1, or the SDEC-2500 with Synthesis 2 and 3.
Introduction:
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? How can you be sure all the hardware is compatible?” These were the
big questions five years ago – Synthesis was the answer.
Once again, JBL Synthesis moves beyond the competition and is
the
answer. The JBL Synthesis Digital Equalizer (SDEC)
is a six channel in/seven channel out 20-bit 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 our 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.
The Concept:
Visualize a speaker system with the highest performance components available. Imagine that you have the power of 20-bit
digital signal processing available to correct any remaining system non-linearity. Fantasize about crossovers that are
theoretically perfect, and time-domain correction delivering idealized impulse response.
The fun doesn’t stop there. Now that this perfected speaker is in the room, you’ve got arrival time correction, multipositional
spatially averaged measurements and scientifically derived target response curves for each speaker, multiband parametric
equalizers, auto-EQ algorithms and compensation for perforated video projection screens! How good would all this be? In a
few words, “very, very good”!
Okay, stop dreaming. It’s here, now. (It’s in that box over there, and you’re going to install it and make someone very
happy!) The JBL Synthesis Solution
™
. The SDEC and the Digital Acoustic Calibration System (DACS) together can
achieve what others only dream about.
Properly used, a high-quality equalizer can improve the overall sound quality of most systems. However, there are many
areas of a speaker’s behavior that can be improved, but only if you know, in advance, what the speaker needs. The
Synthesis solution allows this to be a reality. Until now, anything beyond the most basic equalization has been impossible
without expensive acoustical instrumentation and the knowledge to use it. This is why, traditionally, equalizers have been
general-purpose devices, designed to be applicable to any audio system, usually of 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.
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2.0
INTRODUCTION
2.0
INTRODUCTION
