JBL SDEC-4000, SDEC-3000 manual Calibration Checklist

Page 5

3 Calibration Checklist

The calibration process is more than just measuring and applying EQ to achieve a preset target. It includes examining the entire signal chain and confirming that all parts of the system are accurately connected. Use the below checklist to make sure you have completed all the steps to ensure that your system meets the standards for the best audio system possible.

Follow this list in the order below and you will be guaranteed a great

sounding and properly calibrated JBL Synthesis installation.

￿Speaker placement and installation is correct (page 16 - Speaker Sound Check)

￿Correct connection from Preamp to EQ to Amplifier to Speakers (page 6 -

Audio Connections)

￿Connection of SDEC to Ethernet Network (page 8 - Ethernet Connection)

￿Phase test of each speaker (page 16 - Speaker Phase Test)

￿Set all preamp bass, treble, and speaker distances to flat or 0

￿All bass management crossover points should be set to 80Hz. Do not use

80Hz THX® (See the SDP processor installation manual)

￿Measure and input speaker offset correction (page 9 for Java Remote -

Distance/Delay settings or page 14 for London Architect - Channel Delay (Speaker Distance Offset Correction)

￿Use internal noise test and adjust SDP output levels to set nominal reference level of 75dB using SPL meter before beginning room

correction EQ (page 18 - Setting Levels before Calibrating)

￿Set Processor to Dolby ProLogic and set volume to 0dB

￿Run room measurement using the DACS system and enter corrective EQ

settings (page 19 - DACS Measurement System)

￿Set final levels for system using SPL meter to balance overall output for

each speaker using gain adjustment in SDEC (page 15 - Level Matching Multiple

Surround and Subwoofer Channels)

￿Use test DVD to confirm results using the subjective listening tests

￿Save the SDEC settings file for backup to both your computer and the

network device (SDEC) for future recall (page 20 - Saving Your Work London

Architect software only)

- 5 -

SDEC -X000 DACS Calibration Manual v1.0.doc

Page 4 Page 6
Image 5
Page 4 Page 6
Contents SDEC-3000 SDEC-4000 Speaker Setup Screen Sdec -X000 Dacs Calibration Manual v1.0.doc Equipment Required IntroductionCalibration Checklist Audio Connections Sdec Hardware ConnectionSDEC-4000 with Bi-Amplified Fronts Initial Network Connection Ethernet ConnectionUsing the Java Remote Software Operation using the Java RemoteLondon Architect Software Setup Software Operation using London ArchitectInitial Software Connection to Network Control PanelDesign Configuration Firmware UpgradeOpening from a Network Device HiQnet Node AddressSpeaker Configuration and Instructions Online ModeEQ Controls Channel Delay Speaker Distance Offset Correction Level Matching Multiple Surround and Subwoofer Channels Channel Output1 S4Ai configured as Bipole default Speaker Phase TestSpeaker Sound Check Main SpeakersDipole Surrounds Using the Phase TesterDirect Radiating Point Source Surrounds Cricket-RSetting Levels before Calibrating Setting Output LevelUsing the SPL Meter Digital SLM InstructionsChannel Test and System Calibration Dacs Hardware SetupDacs Measurement System Saving Your Work Recalling Saved SettingsMultiple EQ Presets Advanced FeaturesCinema/Music Subwoofer Output Parameter SynchronizationSdec -X000 Dacs Calibration Manual v1.0.doc Troubleshooting Guide Sdec -X000 Dacs Calibration Manual v1.0.doc
Related manuals
Manual 16 pages 59.53 Kb

SDEC-4000, SDEC-3000 specifications

The JBL SDEC-4000 is an advanced digital signal processor designed for professional audio applications, offering a range of features tailored for optimizing sound quality in both live and installation settings. This powerful device is equipped with cutting-edge technologies that elevate the audio experience through precise control and manipulation of audio signals.

One of the standout features of the SDEC-4000 is its high-performance 32-bit DSP engine, which allows for complex audio processing tasks to be executed seamlessly. This means sound engineers can utilize precise adjustments without any degradation in audio quality. The processor supports various crossover types, making it versatile for different speaker configurations and ensuring proper frequency distribution across audio systems.

The SDEC-4000 comes with comprehensive networking capabilities, supporting both Ethernet and USB connections. This enables easy integration into larger systems while allowing for remote control and monitoring via a user-friendly interface. The device also supports various audio protocols, including AES/EBU and analog inputs, providing flexibility for connecting with multiple sources.

A vital aspect of the SDEC-4000 is its extensive array of built-in algorithms for equalization, compression, limiting, and delay. These tools empower sound engineers to tailor the audio output precisely to their requirements, whether it’s for a concert, a theater production, or a permanent audio installation. With up to 20 channels of processing, users have the freedom to fine-tune each element of their sound system individually.

In addition, the SDEC-4000 features a robust and intuitive graphical user interface that simplifies programming and adjustments. Users can visually represent their audio setups, making it easier to manage complex configurations. The processor also includes comprehensive diagnostic tools, ensuring that any issues can be quickly identified and resolved, thereby maintaining optimal performance.

Furthermore, the device is built with durability in mind. Its rugged construction ensures reliability even in demanding environments, making it a trustworthy choice for both touring applications and fixed installations. The JBL SDEC-4000 is not just a technical marvel, but a comprehensive solution designed to meet the diverse needs of audio professionals, setting a new standard in digital signal processing technology.
Top Page Image Contents