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User Manual

2-Series 

Table of Contents

 Section 1 - Introduction .........................................................................6

 Section 2 - Operating Controls .................................................................7

 Section 3 - Connecting the EQ to Your System ...........................................8

 Section 4 - Rear Panel Descriptions ..........................................................9

 Section 5 - Installation Considerations ......................................................9

 Section 6 - Operation and Application Notes ..............................................10

 Specifications........................................................................................11

Service Info

If you require technical support, contact dbx Technical Support. Be prepared to 
accurately describe the problem. Know the serial number of your device - this is 
printed on a sticker attached to the chassis. If you have not already taken the 
time to fill out your warranty registration card and send it in, please do so now. 
You may also register online at www.dbxpro.com.

Before you return a product to the factory for service, we recommend you refer 
to the manual. Make sure you have correctly followed installation steps and 
operation procedures. For further technical assistance or service, please contact 
our Technical Support Department at (801) 568-7660 or visit www.dbxpro.com. 
If you need to return a product to the factory for service, you MUST first contact 
Technical Support 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 the following page, which extends to 
the first end-user. After expiration of the warranty, a reasonable charge will be 
made for parts, labor, and packing if you choose to use the factory service facility. 
In all cases, you are responsible for transportation charges to the factory. dbx will 
pay return shipping if the unit is still under warranty.

Use the original packing material if it is available. Mark the package with the 
name of the shipper and with these words in red: DELICATE INSTRUMENT, FRAGILE! 
Insure the package properly. Ship prepaid, not collect. Do not ship parcel post.

Summary of Contents for 131s Graphic EQ

Page 1: ...User Manual 2 Series Graphic Equalizers 131s 215s 231s Professional Audio Equipment...

Page 2: ...NG FOR YOUR PROTECTION READ THE FOLLOWING KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASH ING LIQUID AND NO OBJECT FILLED WIT...

Page 3: ...E MAY BE SUF FIXED BY THE 5 Product option None conforms to the following Product Specifications 3AFETY MD EMC 0ART Supplementary Information The product herewith complies with the requirements of the...

Page 4: ...s and operation procedures For further technical assistance or service please contact our Technical Support Department at 801 568 7660 or visit www dbxpro com If you need to return a product to the fa...

Page 5: ...t provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory where all parts and labor will be covered up to a period of two years A Return Authorization number must first be o...

Page 6: ...mpromising your sound The 2 Series Equalizers include the following features s S NE BAND OCTAVE ONSTANT 1 FREQUENCY BANDS S 4WO BAND OCTAVE ONSTANT 1 FREQUENCY BANDS S 4WO BAND OCTAVE ONSTANT 1 FREQUE...

Page 7: ...IGHTS WHEN THE D RANGE IS SELECTED Output Level Bar Graph These four LEDs indicate output level of the equalizer The red LED is 3 dB below clip ping and is marked as 18 dBu It monitors the level at th...

Page 8: ...ures should not exceed 113 F 45 C when equipment is in use Although the unit s chassis is shielded against radio frequency and electromagnetic interference extremely high fields of RF and EMI should b...

Page 9: ...ED FOR INPUT CONNECTIONS FEMALE LOCKING 8 2 TYPE CONNECTORS AND TIP RING SLEEVE PHONE JACK CONNECTORS 4HE MAXIMUM INPUT level that the equalizer can accept is typically 22 dBu ref 0 775Vrms Section 5...

Page 10: ...qualizers are useful audio signal processing tools in situations where precise frequency control is required across the audible frequency spectrum When used with an audio spectrum analyzer the EQs can...

Page 11: ...K Z D REQUENCY 2ESPONSE Z TO K Z D YNAMIC 2ANGE 4YPICALLY D 3IGNAL TO OISE 4YPICALLY D 4 OISE NTERCHANNEL ROSSTALK D Z TO K Z Function Switches EQ Bypass Bypasses the graphic equalizer section in the...

Page 12: ...3OUTH 3ANDY 0ARKWAY s 3ANDY 5TAH 0HONE s AX NT L AX MAIL US AT CUSTOMER DBXPRO COM OR VISIT US on the web at WWW DBXPRO COM s WWW DRIVERACK COM Printed in China 18 0804V A...

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