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U.K. MAINS PLUG WARNING

A molded 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.

LITHIUM BATTERY

WARNING

CAUTION!

This product may contain a lithium battery.There is dan-
ger of explosion if the battery is incorrectly replaced.
Replace only with an Eveready CR 2032 or equivalent.
Make sure the battery is installed with the correct polari-
ty. Discard used batteries according to manufacturer’s
instructions.

ADVARSEL!

Lithiumbatteri - Eksplosjonsfare.Ved utskifting benyttes
kun batteri som anbefalt av apparatfabrikanten. Brukt bat-
teri returneres apparatleverandøren.

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri av samme fabrikat og
type. Levér det brugte batteri tilbage til leverandøren.

VAROITUS!

Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan
tyyppin. Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.

VARNING!

Explosionsfara vid felaktigt batteribyte. Använd samma bat-
terityp eller en ekvivalent typ som rekommenderas av
apparattillverkaren. Kassera använt batteri enligt fabrikan-
tens instruktion.

IMPORTANT SAFETY INSTRUCTIONS

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 interfer-

ence 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

Manufacturer’s Name:

dbx Professional Products

Manufacturer’s Address: 8760  S. Sandy  Parkway

Sandy, Utah 84070, USA

declares that the product:

Product name:

dbx 131, 215 and 231

Note:

Product name may be suffixed
by the EU.

Product option:

None

conforms to the following Product Specifications:

Safety:

IEC 60065 (1998)

EMC:

EN 55013 (1990)
EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements
of the Low Voltage Directive 72/23/EEC and the EMC
Directive 89/336/EEC as amended by Directive
93/68/EEC.

Vice-President of Engineering

8760 S. Sandy Parkway

Sandy, Utah 84070, USA
Date: April 19,2002

European Contact:

Your local dbx Sales and

Service Office or

Harman Music Group
8760 South Sandy Parkway
Sandy, Utah  84070  USA
Ph: (801) 566-8800
Fax: (801) 568-7583

Summary of Contents for 131, 215, 231

Page 1: ...User Manual 2 Series Graphic Equalizers 131 215 231 ...

Page 2: ... shock refer servicing to qualified service personnel or equivalent This Equipment is intended for rack mount use only 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 andYELLOW Earth BLUE Neutral BROWN Live As colours of the cores in the ma...

Page 3: ...ti VARNING Explosionsfara vid felaktigt batteribyte Använd samma bat terityp eller en ekvivalent typ som rekommenderas av apparattillverkaren Kassera använt batteri enligt fabrikan tens instruktion IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY This unit conforms to the Product Specifications noted on the Declaration of Conformity Operation is subject to the following two conditions t...

Page 4: ...tion procedures If you are still unable to solve a problem contact our Customer Service Department at 801 568 7660 for consultation If you need to return a product to the factory for service you MUST contact Customer Service to obtain a Return Authorization Number No returned products will be accepted at the factory without a Return Authorization Number Please refer to the Warranty information on ...

Page 5: ...om the factory where all parts and labor will be covered up to a period of 2 years A Return Authorization number must be obtained from dbx by telephone The company shall not be liable for any consequential damage as a result of the product s use in any circuit or assembly 4 dbx reserves the right to make changes in design or make additions to or improvements upon this product without incurring any...

Page 6: ...r sound The 2 Series Equalizers include the following features 131 One 31 band 1 3 octave Constant Q frequency bands 215 Two 15 band 2 3 octave Constant Q frequency bands 231 Two 31 band 1 3 octave Constant Q frequency bands Switchable boost cut ranges of 6 or 12 dB 12 dB per octave 50Hz low cut filter Front panel bypass switch 12 dB input gain range 4 segment LED ladders for monitoring output lev...

Page 7: ... at the output of the equalizer after all other processing Clip LED This LED lights whenever any internal signal level reaches 3dB below clip ping which may occur when any of the following happen 1 the input signal is hot ter than 22dBu 2 excessive gain is applied by the input gain control or 3 exces sive boost is applied using the frequency sliders Frequency Band Slider Controls Each one of these...

Page 8: ... balanced or unbalanced connections The use of more than one connector at a time for the inputs could unbalance balanced lines cause phase cancellation short a conductor to ground or cause damage to other equipment connected to the equalizer More than one output may be used simultaneously as long as the combined parallel load is greater than 2kΩ Select the operating range with the BOOST CUT RANGE ...

Page 9: ...ctor carrying the signal and the shield at ground potential Input Cable Configurations The equalizer has an input impedance of 40kΩ bal anced and 20kΩ unbalanced This makes the 2 Series Equalizers audio inputs suit able for use with virtually any low source impedance under 2kΩ Output Cable Configurations The equalizer s output is capable of driving a 2kΩ load to 18dBu For maximum hum rejection wit...

Page 10: ...ced unbalanced RF filtered Impedance Balanced 40kΩ unbalanced 20kΩ Max Input Level 21dBu balanced or unbalanced CMRR 40dB typically 55dB at 1kHz Outputs Connectors 1 4 TRS male XLR pin 2 hot Type Impedance balanced unbalanced RF filtered Impedance Balanced 100Ω unbalanced 50Ω Max Output Level 21dBu balanced unbalanced into 2kΩ or greater 18dBm balanced unbalanced into 600Ω System Performance Bandw...

Page 11: ...User Manual 2 Series Notes ...

Page 12: ...60 Fax 801 568 7662 Int l Fax 801 568 7583 E mail us at customer dbxpro com or visit us on the web at www dbxpro com www driverack com www blueseries com A Harman International Company 18 1333V A Printed in China The Professional s Choice In Signal Processing ...

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