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JBL SYNTHESIS SDEC-1000 Installation Manual

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Table Of Contents

Table of Contents

Table of Contents
Important Safeguards for Audio Products
Introduction
The Concept
SDEC-1000 and SDEC-2500 Rear Panels
What the SDEC Does
Driver EQ
Figure 1: Raw Driver Response/Corrected Driver Response
Driver Time Correction
Channel-To-Channel Distance Correction (Auto-Time Correction)
Crossovers
Figure 3: Effect of Auto-Time Correction
Screen Correction
Modes
Room Correction EQ
Figure 4: Effect of Screen Correction EQ
Figure 5: Effect of Room EQ
Location, Location, Location
A Note on Wiring
Wiring Connections to the SDEC
Case I - Replacing an Analog Equalizer in an Existing Synthesis System
Case II - Installing an SDEC as Part of a New Synthesis System Installation
Power the System up for the First Time
Operational Overview
Stimulus
Data Acquisition
Data Post-Processing
Display Data
Make Corrections
Target Curves
Ideal Low-Frequency Response
Ideal High-Frequency Response
Figure 7: Synthesis 1 Main Target Curve, below 1Khz
Figure 8: Complete Synthesis 1 Target Curve
DACS4 Connections and Use
Things to Consider When Selecting a Location for DACS4
Hookup
Ac/Power Connections
Figure 9: DACS4 Connection to Synthesis
Audio Connections
Other Connections
Microphone Connection and Placement
Room Placement
How Is the Room Used
Microphone #1
Now Place the Remaining Microphones
Power up Synthesis and DACS4
Preliminary Surround Processor Settings
Global Settings
Mode Specific Settings
DACS4 Operation
Notational Conventions
About Online Help
[F-1] Help
Starting DACS4
Initial DACS4 Screen
Figure 11: DACS4 Opening Screen
Enter Customer Information
Figure 12: Customer Information Window
Synthesis Model
Select a Surround Processor
Figure 14: Select a Surround Processor
Center Screen Compensation
Left/Right Compensation
Figure 15: Identify Screen Type, Center Channel
Figure 16: Identify Screen Type, Left & Right Front
Confirm DACS4 Connections
Figure 17: DACS4 on Screen Wiring Diagram
DACS4 Main Screen
Figure 18: DACS4 Main Calibration Screen
Response Graph
Filters at a Glance
Figure 19: Response Graph Window
Figure 20: Filter Setting and Control Field
Individual Filter Control
Channel and Mode Selection/Status
Figure 21: Filter Control Field
Figure 22: Direct Channel and Mode Access
Overlay Previously Tested Channels
Online Help
Special Function Keys
Figure 23: Channel Display Control Field
Figure 24: Continuously Updated Online Help
Figure 25: Function Keys and Status Line
Figure 26: Channel Gain and Delay Information
Calibration Walk-Through
Figure 27: Fresh Install, First Screen
Auto-Time Correction
Figure 28: Auto-Time Correction Dialog Box
Cinema, Subwoofer Calibration
Figure 29: Ready for Subwoofer Level Test
Setting the Level
Figure 30: Setting Level
Figure 31: Without Smoothing Filter
Auto-Equalization
Figure 32: Results of Auto-EQ
Cinema, Left - Center - Right Calibration
Setting the Level
Figure 33: Left Cinema Level Set
Run Auto-EQ
Left and Right Ambient Calibration
Figure 34: Auto-EQ
Setting the Level
Music Mode Calibration
Figure 35: Ambient Target
Quitting DACS4
After a Complete Calibration
Quitting When some Channels Are Not Accepted
SDEC Maintenance
Using the Loader Utility
Troubleshooting
Correcting Hum Problems
Why Does It Hum in the First Place
What You Can Do During Installation
Video Devices
Specifications
Synthesis One Interconnection Diagram
Synthesis Two and Three Interconnection Diagram

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1 Introduction
2 The Concept
3 Sdec-1000 and Sdec-2500 Rear Panels
4 What the Sdec Does
5 Synthesis One Interconnection Diagram
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SYNTHESIS

SDEC-1000/2500

INSTALLATION

GUIDE

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JBL SYNTHESIS SDEC-1000 Installation Manual

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