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sive damage which is not covered by the warranty.

Output Option Panel

This panel is removed when an output option card is installed in your 786. Connecting a custom
designed digital output module in the option port provides full 24-bit AES/EBU and S/PDIF output capa-
bilities for the 786. The digital outputs of the 786 operate simultaneously with the analog outputs, pro-
viding the possibility of running to two different devices at the same time: analog, and AES/EBU or
S/PDIF. For more information on the digital output option, contact dbx customer service. Be sure to fill
out your warranty registration card, provided in this manual, and return it to dbx as soon as possible.
This will enable us to notify you of other output options that will become available in the future.

If you require technical support, contact dbx Customer Service. Be prepared to accurately describe the
problem. Know the serial number of your unit - this is printed on a sticker attached to the rear panel. If
you have not already taken the time to fill out your warranty registration card and send it in, please do
so now.

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. 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 below, which extends to the first end-user. After expiration of the warran-
ty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory ser-
vice 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.

Factory Service

Technical Support

10

Technical

support and factory service

786

Summary of Contents for 786

Page 1: ...Precision Mic Preamp 786 Owner s Manual...

Page 2: ...t 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 chassis and earth ground are touched simultan...

Page 3: ...nsole Signal Path 3 Connection To Your System 4 Operating Controls 6 Front Panel Description 6 Rear Panel Description 8 Technical Support Factory Service 10 Warranty 11 Specifications 11 Block Diagram...

Page 4: ...in mind We wanted to create a pristine mic pre that would carefully reveal the very subtle nuances of any source device To that end the 786 uses premium parts and as short a signal path as possible t...

Page 5: ...t upon the signal EQ dynamics panning etc Unfortunately console preamp circuits are often not given enough room on the circuit board or high quality parts It is for this reason that outboard pre amps...

Page 6: ...red settings including phantom power and Low Z Connect the audio output of the 786 to the console s LINE INPUT and ensure that the con sole s input selection switch is set to LINE and the console s ga...

Page 7: ...a compressor limiter in the path before the recorder The perfect com panion product to the 786 is the dbx 160SL Stereo Compressor Also when recording with this method remember that desired gain change...

Page 8: ...rated to the frequency at which 3dB of boost or cut occurs when the Detail con trol is set at 16dB or 16dB respectively Detail Control This control adjusts the amount of boost or cut of the high frequ...

Page 9: ...or consistent performance 20dB Pad Switch and LED This switch inserts a 20dB attenuator circuit into the signal path from the microphone input The pad is inserted before the signal is routed through t...

Page 10: ...ssis Ground Binding Post The green Chassis Ground binding post is supplied to give the user another method to provide com prehensive grounding options for any installation It is easy to think of the b...

Page 11: ...e to any 50Hz or 60Hz AC power source of the correct line voltage for your area Make sure this voltage is also correct for the voltage marked on the back of the 786 Always make AC power connections wi...

Page 12: ...registration card and send it in please do so now 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...

Page 13: ...y obligation or liability in connection with the sale of this product In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the perfor mance of this...

Page 14: ...low LED to indicated when 12 dB octave mode is selected Peak Red LED to indicated when signal is within 3 dB of clipping Sense points are out put of M8 gain module Course Gain output of Fine Control a...

Page 15: ...in Switching Relay Bank Coarse Gain Rotary Switch 15dB 20dB 65dB M8 Mic Pre Module 48V Relay Relay Super Low Z 20dB Pad Phase Invert Relay Relay Relay Relay Rectifier Unbalance Ground Spectrum Detail...

Page 16: ...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 com A Harman Internatio...

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