JBL SDEC-4500 User Manual
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SYNTHESIS
®
SDEC-3000
SDEC-4500
IGITAL
D
EQUALIZER
INSTALLER’S
MANUAL
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CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INTRODUCTION AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
DETAILED DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
REAR PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
INPUT/OUTPUT ASSIGNMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
SDEC-3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
SDEC-4500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
SDEC-4500 WITH BI-AMPLIFIED FRONT SPEAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SDEC-4500 WITH FULL-RANGE FRONT SPEAKERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
CONNECTION TO THE RESTOFTHEJBL SYNTHESIS®SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SDEC-3000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYNTHESIS TWO ARRAY™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYNTHESIS THREE ARRAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYNTHESIS FOUR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SYNTHESIS PROJECT ARRAY™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SDEC-4500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SYNTHESIS ONE ARRAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SYNTHESIS ATLAS™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SYNTHESIS K2® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SYNTHESIS EVEREST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
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IMPORTANT SAFETY PRECAUTIONS!
PLEASE READ CAREFULLY ALL OF THE FOLLOWING IMPORTANT SAFEGUARDS THAT ARE
APPLICABLE TO YOUR EQUIPMENT
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and
the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the apparatus.
12.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord
or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
15. Do not use attachments not recommended by the product manufacturer, as they may cause hazards.
16. This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply
to your home, consult your product dealer or local power company. For products intended to operate from battery power, or other sources, refer to
the operating instructions.
17. If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is grounded so as to provide some protection
against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to
proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors,
location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure A.
18. An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall
into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or
circuits, as contact with them might be fatal.
19. Do not overload wall outlets, extension cords, or integral convenience receptacles, as this can result in a risk of fire or electric shock.
20. Never push objects of any kind into this product through openings, as they may touch dangerous voltage points or short-out parts that could result in
a fire or electric shock. Never spill liquid of any kind on the product.
21. The apparatus shall not be exposed to dripping or splashing, and no objects filled with liquids, such as vases, shall be placed on the apparatus.
22. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
23. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same
characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards.
24. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in
proper operating condition.
25. The product should be mounted to a wall or ceiling
only as recommended by the manufacturer.
Note to CATV system installer:
This reminder is provided to call the CATV system installer’s
attention to Article 820-22 of the NEC that provides
guidelines for proper grounding and, in particular, specifies
that the cable ground shall be connected to the grounding
system of the building, as close to the point of cable
entry as practical.
Figure A.
Example of Antenna Grounding as per
National ElectricalCode ANSI/NFPA 70
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INTRODUCTION AND FEATURES
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
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 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, 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.
®
products set new benchmarks in audio technology, and, when used as part of a complete JBL Synthesis
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
4
0
1
2
3
4
5
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DETAILED DIAGRAM –FRONT PANEL
0 INPUT/OUTPUT CARD MONITORING
Each channel has three LED indicators showing:
CLIP
Illuminated – Indicates clipping in the analog domain for each channel of the fitted input or output card.
The LED will light at +18.5dB.
SIGNAL
Illuminated – The signal LED will light for each channel of a fitted input or output card when the signal
reaches or exceeds the signal threshold of – 20dB.
SYNC/48V
This feature is currently not supported by JBL Synthesis (lights to indicate that + 48V “phantom” power has
been activated for the relevant channel of a fitted input card or that Digital Sync is valid).
1 USB PORT
This is currently for future use and is not supported (SDEC 4500 does not include USB).
2 DATA ACTIVITY
The data activity LED will flash to indicate that the device is communicating with another control device, either
on the network or via the serial or control ports.
3 NETWORK LINK
The network link LED indicates the presence of Ethernet cables. If no cables are connected, the LED is unlit.
The network link is used for configuring and calibrating the Synthesis system when using the DACS calibration.
4 LCD (LIQUID CRYSTAL DISPLAY)
The LCD indicates the name/ID and IP address of the unit.
5 HOLD
Pressing and holding the Hold switch will cycle the LCD through its contrast range.
6 LOCATE
Pressing the Locate switch on the front of the unit will illuminate the Locate switch on the rear.
5
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