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WARNING

FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:

WATER AND MOISTURE:

Appliance should not be used near water (e.g. near a bathtub, wash-

bowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc).  Care should be
taken so that objects do not fall and liquids are not spilled into the enclosure through openings.

POWER SOURCES:

The appliance should be connected to a power supply only of the type

described in the operating instructions or as marked on the appliance.

GROUNDING OR POLARIZATION:

Precautions should be taken so that the grounding or

polarization means of an appliance is not defeated.

POWER CORD PROTECTION:

Power supply cords should be routed so that they are not like-

ly to be walked on or pinched by items placed upon or against them, paying particular attention to
cords at plugs, convenience receptacles, and the point where they exit from the appliance.

SERVICING:

To reduce the risk of fire or electric shock, the user should not attempt to service the

appliance beyond that described in the operating instructions.  All other servicing should be referred
to qualified service personnel.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTACLE:

Replace fuse with same type and rating only.

MULTIPLE-INPUT VOLTAGE: 

This equipment may require the use of a different line cord,

attachment plug, or both, depending on the available power source at installation. Connect this equip-
ment only to the power source indicated on the equipment rear panel. To reduce the risk of fire or
electric shock, refer servicing to qualified service personnel or equivalent.

SAFETY INSTRUCTIONS 

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH
A POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED.

The cores in the mains lead are coloured in accordance with the following
code:

GREEN and YELLOW - Earth        BLUE - Neutral        BROWN - Live

As colours of the cores in the mains lead of this appliance may not corre-
spond with the coloured markings identifying the terminals in your plug,
proceed as follows:

¥ The core which is coloured green and yellow must be connected to

the terminal in the plug marked with the letter E, or with the earth
symbol, or coloured green, or green and yellow.

¥ The core which is coloured blue must be connected to the terminal

marked N or coloured black.

¥ The core which is coloured brown must be connected to the terminal

marked L or coloured red.

This equipment may require the use of a different line cord, attachment
plug, or both, depending on the available power source at installation.  If the
attachment plug needs to be changed, refer servicing to qualified service
personnel who should refer to the table above.  The green/yellow wire shall
be connected directly to the unit's chassis. 

WARNING:

If the ground is defeated, certain fault conditions in the unit or

in the system to which it is connected can result in full line voltage between
chassis and earth ground.  Severe injury or death can then result if the chas-
sis and earth ground are touched simultaneously.

LIVE

E

NEUTRAL

EARTH GND

CONDUCTOR

L

N

BROWN

BLUE

GREEN/YEL

BLACK

Normal

Alt

WIRE COLOR

WHITE

GREEN

U.K. MAINS PLUG WARNING

A

moulded mains plug that has been cut off from the cord is unsafe.

Discard the mains plug at a suitable disposal facility.  

NEVER UNDER

ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED
OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET. 

Do

not use the mains plug without the fuse cover in place.  Replacement
fuse covers can be obtained from your local retailer.  Replacement fuses
are 13 amps and MUST be ASTA approved to BS1362.

The symbols shown above are internationally accepted symbols that warn of
potential hazards with electrical products.  The lightning flash with arrow-
point in an equilateral triangle means that there are dangerous voltages pre-
sent within the unit.  The exclamation point in an equilateral triangle indi-
cates that it is necessary for the user to refer to the ownerÕs manual.

These symbols warn that there are no user serviceable parts inside the unit.
Do not open the unit.  Do not attempt to service the unit yourself.  Refer all
servicing to qualified personnel.  Opening the chassis for any reason will
void the manufacturerÕs warranty.  Do not get the unit wet.  If liquid is
spilled on the unit, shut it off immediately and take it to a dealer for service.
Disconnect the unit during storms to prevent damage.

ELECTROMAGNETIC COMPATIBILITY

This unit conforms to the Product Specifications noted on the 

Declaration of

Conformity

.  Operation is subject to the following two conditions:

¥ this device may not cause harmful interference, and 
¥ this device must accept any interference received, including interference

that may cause undesired operation.  

Operation of this unit within significant electromagnetic fields should be avoided.

¥ use only shielded interconnecting cables.

DECLARATION OF CONFORMITY

ManufacturerÕs Name:

dbx Professional Products

ManufacturerÕs Address:

8760 S. Sandy Parkway

Sandy, Utah 84070, USA

declares that the product:

dbx 566

conforms to the following Product Specifications:

Safety:

EN 60065 (1993)
IEC65 (1985) with Amendments 1, 2, 3

EMC:

EN 55013 (1990)
EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements of
the Low Voltage Directive 73/23/EEC and the EMC
Directive 89/336/EEC as amended by Directive
93/68/EEC.

dbx Professional Products
Vice-President of Engineering
8760 S. Sandy Parkway
Sandy, Utah 84070, USA
September 25th, 1998

European Contact:  Your Local dbx Sales and Service Office or 

International Sales Office
68 Sheila Lane
Valparaiso, Indiana
46383, USA
Tel: (219) 462-0938
Fax: (219) 462-4596

Summary of Contents for 566

Page 1: ...Dual Vacuum Tube Compressor Owner s Manual Version 1 0...

Page 2: ...he unit s chassis WARNING If the ground is defeated certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground Seve...

Page 3: ...1 Table of Contents Introduction 2 Features 2 Inspection 2 Warranty 3 Connections 4 Compressor Controls 5 Rear Panel 10 Specifications 11 Settings Page 13...

Page 4: ...set of performance tests and a 24 hour burn in peri od before it is shipped from the factory We recommend that you take a moment to read through this operation manual It provides valuable information...

Page 5: ...re performed by an authorized service center No responsibility is assumed for any special inciden tal or consequential damages However the limitation of any right or remedy shall not be effective wher...

Page 6: ...and 1 4 TRS connectors on the inputs and outputs can be used for bal anced or unbalanced connections However the use of more than one connector at a time on the input pair could unbalance balanced lin...

Page 7: ...when the signal is below the level set by the Compressor Threshold control This indicates that the Compressor is not compressing and is operating in its linear region THRESHOLD control This control s...

Page 8: ...ettings cause the 566 to act like an RMS or averaging detecting Compressor Limiter AUTO switch This switch overrides both the Attack and Release controls and enables preset program dependent attack an...

Page 9: ...ful in keep ing low frequency program material from muffling or punching holes in the compressed signal This feature allows faster attack times and higher compression ratios with less artifacts The sw...

Page 10: ...ully right position and not the 0 dB position indicated on the top line of the meter OUTPUT LEVEL switch This configures the meter to show the output signal level This works in conjunction with the ou...

Page 11: ...er to the manual for the TYPE IV Conversion System for a description of the function of this switch SHAPE switch This switch becomes active only when the optional dbx TYPE IV Conversion System output...

Page 12: ...e level devices to the 566 The nominal output level can be set to either 4 dBu or 10 dBV with the 4 dBu 10 dBV switch SIDECHAIN SEND The Sidechain Send and Return allow external processing of the Comp...

Page 13: ...125 dB sec rate Output Gain 15 to 15 dB LIMITER Type PeakPlus Limiter Threshold Range 0 dBu to 22 dBu off Ratio Infinity 1 Attack Time Program dependent typically 5 msec Release Time Program dependent...

Page 14: ...00 120V 500mA 250V Slow Blow 5mm X 20mm 230 240V T250 mA 250V 5mm X 20mm Mains Connection IEC 320 Receptacle PHYSICAL Dimensions 3 5 H X 19 W X 8 D Weight 12 lbs 5 5 kg Shipping Weight 13 lbs 5 9 kg N...

Page 15: ...13 dbx 566 Settings Page Photocopy this page and mark the settings you use for your sessions Session Date Comments Session Date Comments 13...

Page 16: ...South Sandy Pkwy Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Int l Fax 603 672 4246 Questions or comments E mail us at customer dbxpro com or visit our World Wide Web home page at www dbxpro...

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