Behringer DSP1100P user manual Installation, Rack mounting, Mains connection

Page 25

Quantization Steps

 

 

 

 

 

U (Voltage)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

0111

Continuous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Analog Signal

 

 

 

 

 

 

 

 

7

 

 

 

 

0110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

0101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

0100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

0011

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

0010

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0001

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0000

 

 

 

 

 

 

 

 

-8

-7

-6

-5

-4

-3

-2

1111

1

2

3

4

5

6

7

t (Time)

8

 

 

 

 

 

 

1110

 

-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1101

 

 

-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quantization Errors

 

 

 

 

 

1100

 

-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Noise)

 

 

 

 

1011

 

 

-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1010

 

 

 

-5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1001

 

 

 

 

 

 

-6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

 

 

-7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-8

 

 

 

 

 

 

 

 

 

 

Digital Words

 

 

 

 

 

 

 

Conversation Rate

Fig. 4.4: Transfer diagram for an ideal linear ADC (2’s complement representation)

Digital distortion is quite different, as illustrated by this simplified example. If we take the situation where a 4 bit word has the positive maximum value of 0111, and add to it the smallest possible value of 0001 (in other words, the smallest increase in amplitude possible), the addition of the two results in 1000 - the value of the “negative” maximum. The value is turned on its head, going instantly from positive max to negative max, resulting in the very noticeable onset of extreme signal distortion.

5. INSTALLATION

Your BEHRINGER FEEDBACK DESTROYER PRO was carefully packed in the factory and the packaging was designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred in transit.

+If the unit is damaged, please do not return it to us, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted. Shipping claims must be made by the consignee.

5.1 Rack mounting

The BEHRINGER FEEDBACK DESTROYER PRO fits into one standard 19" rack unit of space (1 3/4"). Please allow at least an additional 4" depth for the connectors on the back panel. Be sure that there is enough air space around the unit for cooling and please do not place the FEEDBACK DESTROYER PRO on high tem- perature devices such as power amplifiers etc. to avoid overheating.

5.2 Mains connection

The mains connection of the FEEDBACK DESTROYER PRO is made by using a mains cable and a standard IEC receptacle. It meets all of the international safety certification requirements.

+Please make sure that all units have a proper ground connection. For your own safety, do not remove the ground connection within the units or at the supply, or fail to make this connection at all.

Before you switch on the unit, check that it is configured to match your AC mains voltage requirements. If it

E

5. INSTALLATION

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Contents PRO DSP1100P EG-Declaration of Conformity Detailed Safety Instructions Safety InstructionsFeedback Destroyer PRO Foreword Table of Content Design concept IntroductionBefore you begin IntroductionMonitor application Hook up & goFeedback Destroyer PRO front panel Control elementsFunction keys and jog wheel Operation OperationManual filters / parametric equalizer Activating/deactivating the filtersAutomatic filters Working with programsDisplay Mode of operation Midi control Displa y ModeFeedback Destroyer PRO Applications ApplicationsUsing the Feedback Destroyer PRO in the monitor path Level settingUsing the Feedback Destroyer PRO in the main mix bus Using the Feedback Destroyer PRO in the main mix bus Using the Feedback Destroyer PRO as an effects device Using the Feedback Destroyer PRO in a studio environmentSpecial remarks Technical BackgroundTechnical Background Dynamic range of human hearing Octave Quality factor Q FeedbackTypical feedback loop Graphic equalizersFeedback Destroyer PRO Parametric equalizersDigital audio processing Installation InstallationRack mounting Mains connectionOutput Cable Input Audio connectionsBalanced use of stereo 1/4 jack plugs Midi connectionsFrequency chart Operating level SwitchAppendix AppendixPreset Filter Preset tableOmni ON, Poly Midi implementationTHD SpecificationsWarranty Warranty