BSS Audio DPR 402 Instrukcja Użytkownika

1DPR 404User Manual

10Getting to know the DPR-404Fig 6.1 Front PanelFig 6.2 Rear Panel

11All numbers in bubbles refer to Section numbers.

127.0 Audio connectionsThe DPR-404 audio inputs are RFI filtered and electronically balanced, withthe outputs electronically balanced and floating. Th

13For stereo program processing, channels 1 and 2 can be linked together byselecting the LINK switch on channel 2. Channel 1 will assume the masterrol

148.0 Controls8.1 INWhen depressed the processing is engaged and the green LED lights inconfirmation. When released, processing is disabled, the LED i

158.4 Attack/ReleaseWith the switches released, the function is automatically set and is programrelated, such that it follows the signal requirements

168.7 De-essThreshold control for the high frequency de-esser circuitry. It worksindependently of the main compressor section and can be used simultan

178.11 Main powerfuse20mm, T160mA for 240v AC voltage setting and T250mA for 120v AC voltagesetting9.0 Rear panel controlsAllows operation from 90v-13

18Rear panel controls9.6 Electronicallybalanced andfloating outputMaximum output is +20dBu into 600ohms.The pin connections are: Pin 1: Ground/Chassis

19The human ear excels in its ability to detect an extremely wide range ofsound levels. These can range from the quietest whisper to the roar of a jet

2This equipment has been tested and found to comply with the following European Standards forElectromagnetic Compatibility:Emission Specification: EN5

20Compressors and LimitersIt therefore becomes apparent that to get the most out of an audio system, thestandard operating level must be kept as high

21In the DPR-404, gain reduction is achieved by using a proprietary subtractivecircuit which minimises signal degradation and has a maximum attenuatin

22The effect of Compression11.1 Compression11.0 The effect of Compression on soundConsider an input signal which is applied to two units, one having i

23Comparing the input and output waveforms for the compressed mode, theloudest portions of the signal have been effectively decreased in level, and if

24De-essing and Peak LimiterA common problem encountered when amplifying or recording the humanvoice is the large amount of high frequency energy hear

2512.0 SpecificationsSpecifications12k ohm electronically balanced, +20dBu (+20dBv) maximum input level via a 3 pin male XLRcable plug. Common Mode re

26SpecificationsSide chain insert: Rear panel RTS jack accesses side chain for inserting other equipment at linelevel. Connections are: Ring: Signal o

2713.0 Service Section13.1 Transientsuppressorreplacement!!! CAUTION - Important Notes !!!SERVICE SECTIONThe primary of the input transformer is prote

28!!! CAUTION - Important Notes !!!SERVICE SECTION!!! WARNING - Refer all servicing to qualified service personnel !!!Risk of electric shock if the un

2914.0 Warranty InformationWarranty InformationWhen sold to an end user by BSS Audio or a BSS Audio Authorised Reseller,this unit is warranted by the

3ContentsContents1.0 The BSS DPR-404 52.0 Unpacking 63.0 Mechanical Installation 64.0 Earthing Requirements 75.0 Mains Power Connection 87.0 Audio con

30IndexIndexAAttack Time 21BBelow Threshold. See Compression meters; Compression meters:Below ThresholdCChassis groundseparating from signal 26Compres

31IndexRelease time 21SSpecifications 23TThreshold 14Transient suppressorreplacement 25UUnpacking 6WWarranty Info. 27

32User Notes

33User Notes

4Contents11.0 The effect of Compression onsound 2011.1 Compression 2011.2 Attack, Release and Ratio 2111.3 De-essing 2212.0 Specifications 2313.0 Serv

51.0 The BSS DPR-404The DPR-404 is a compact and professional four channel compressor and de-esser. Based on the well established BSS subtractive gain

6As part of BSS’ system of quality control, this product is carefully checkedbefore packing, to ensure flawless appearance. After unpacking the unit,p

7Earthing Requirements4.0 Earthing RequirementsWARNING! THIS APPLIANCE MUST BE EARTHED.IMPORTANT: The wires in the mains lead are colour coded in acco

85.0 Mains Power ConnectionVoltage: The DPR-404 operates on either 120 or 240 volt supplies. Use thevoltage selector switch to choose the required vol

9Power ON: This is indicated the green 'ON' LED located under the CH 'IN'switches. If this LED is not lit when power is connected