BSS Audio FDS 355 Spezifikationen

FDS-334/336Minidrive ManualConnect here first..

10FDS-334/336 Minidrive Features Active crossover filters with up to 48dB/Octave slopes to divide the audio spectrum intoseparate passbands for each

11FDS-336 Back PanelAC Power ConnectionsThe FDS-334/336 will accept input AC from 100 - 240 Volts, 50-60 Hz. It does not have apower switch and must

12Audio ConnectionsThe FDS-334/336 has two balanced Inputs and either six (336) or four (334) balanced Outputsthat can accommodate both balanced and u

13Rear Panel ConnectionsUnbalanced wiringA fully balanced signal system will yield the best possible results with none of the problemsoften associated

14Front Panel InterfaceFDS-336 Front PanelWhats on the screen?All the programming for the Minidrive is presented through a clear 2x16 character LCD s

15Front Panel Navigation ControlThe NavipadTo the left of the display screen there is a four way rocker selectorswitch. This enables navigation throu

16Front Panel Other ControlsSTORE/ENTER and RECALLUsed to store edited Programs to a new memory location and to recall saved setupsfrom the internal m

17Front Panel MeteringLED Input BargraphsThe Input bargraphs respond to the peak input signal and also indicate digital clipping. Theseshow the input

18Editable ParametersThere are three basic editing modes; Input, Output and Utilities, all selectable directly from thefront panel.Input mode Enables

191 Before making any connections between the Minidrive and the amplifiers, make sure thatthe amplifiers are switched off and that their level control

2ContentsSafety Information... 5Warranty Information...

20ProgramsProgram StoringA Program can be stored in any one of the 60 available memory locations. Pressing STORE/ENTER displays the Store screen with

21Program RecallRECALL screen, the key indicates that the Program is locked.Pressing RECALL will enter the recall mode with the last used Program on t

22The configuration is the basic setup of the unit and is stored as part of the Program information,along with the Stereo Link setting associated with

23Utilities Configuration2 Channel x 3 way mode (FDS-336 only) Outputs 1,3 and 5 are routed from Input A. Outputs 2, 4 and 6 are routed from Input B

24LCR 2 way mode (FDS-336 only)When using a derived centre cluster feed such as in LCR (Left, Centre, Right) installation, theconfiguration can be cha

252 Channel x 2 way mode (FDS-334 only)This is a standard stereo 2 way configuration. Outputs 1 & 2 are routed from input A. Outputs 3 & 4 a

26Stereo LinkThis parameter adjusts the stereo linking of various Input andOutput parameters and works in conjunction with theConfiguration setting.

27Delay UnitsPressing the Utilities button at any time from a Delay screenin any of the Input or Output modes will select the DelayUnits screen.Delay

28Security SettingsThere are three levels of security for the unit, Lock Out, OEM Lock and Owner Lock. These areused to protect the parameters or Pro

29Utilities Security Lock OutsLock set up modeA further press of either the Up or Down navipad key enters the Lock set up mode.Once in the Lock setup

3ContentsScreen Explanations... 20Programs...

30Utilities Security Lock OutsConfirming the Lock selectionWhen all the desired parameters are locked, confirm the lock set up process with the STORE/

31Delete ProgramTo delete a Program, press either > or turn the encoder clockwise.Choose the Program to be deleted using the < and > keys or

32MIDI OperationMIDI Channel Number (1-16)MIDI is used to transmit and receive Program changes and to transmit system exclusive dumpdata between units

33PCPORTThis mode allows the RS-232 port on the rear of the Minidrive to be used to perform MIDIsystems exclusive dumps and to control other Minidrive

34Input Mode There are three input sections: Input A, Input B and Input Sum (A+B). Delay and EQ can beadded to Inputs A, B and stereo linked A&B

35There are six output sections on a FDS-336; Output 1 through Output 6, and four on a FDS-334.The Output parameter screens are accessed by pushing th

36SourceStereo Linked Output 1 & 2 source A & B.Choose which Input or combination of Inputs supplies the Output channel.The options are: Inpu

37LimiterEach Output channel has a dedicated limiter that can be set to a threshold anywhere between-10 to +20dBu.There are two primary uses for the l

38DelayOutput channel Delay is adjustable from 0 - 635ms in 21µs steps. At no time can there bemore than 635ms of delay on any Input to Output path.

39PolarityPolarity is switchable between Normal or Inverted.Using the < and > navipad keys or rotary encoder the polarity of the output signal c

4ContentsOutputs... 35Stereo Linked Outputs ...

40The FDS-334/336 allows full control over each high and low pass filter of a crossover segmentin shape, slope and frequency. Graphically these param

41Outputs Crossover Shapes and Frequencies-50.00-45.00-40.00-35.00-30.00-25.00-20.00-15.00-10.00-5.0000.05.000020 100 1k 10k 20k-50.00-45.00-40.00-35.

42Low edge filter frequencyThis control adjusts the cut off frequency of the selected Low Frequency (high pass) crossover.The range is from 15Hz to 16

43Assignable EQMultiple EQs can be assigned to individual Input and Output channels.If there is no EQ on the currently selected channel (and there are

44Inputs/Outputs Assignable EQEQ FrequencyThe Frequency of the EQ is adjustable from 15Hz to 16kHz in approximately 1/6 Octave steps.The screen above

45The crossover filters and EQs share DSP resources between two DSP chips. There are certainassignment constraints, the table below summarizes how th

46Q. Where has the output gone?A. If you have a signal source assigned to an Output, but do not have any output,check that the low pass filter frequen

47Q. I dont have any linked delays, but I cant get the maximum 635ms on an Inputor Output.A. The maximum delay is a combination of the amount of del

48MONO - Stereo linking defaults to OFFCHANNELOUT 1OUT 2OUT 3OUT 4OUT 5OUT 6NAMEBand 1 Band 2 Band 3 Band 4 Band 5 Band 6SOURCEAAAAAALINKINGNone None

49MONO - Stereo linking defaults to OFFCHANNELOUT 1OUT 2OUT 3OUT 4NAMEBand 1 Band 2 Band 3 Band 4SOURCEAAAALINKINGNone None None NoneGAIN0dB 0dB 0dB 0

5Safety InformationCAUTION REDUCE THE RISK OF ELECTRIC SHOCKDO NOT REMOVE COVER.NO USER SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIED PERSONNE

50User Program TemplateInput Parameters Input A Input B Input A+BDelayEQ1 TypeFrequencyGain +/-BandwidthEQ2 TypeFrequencyGain +/-BandwidthEQ3 TypeFreq

51User Program TemplateInput Parameters Input A Input B Input A+BDelayEQ1 TypeFrequencyGain +/-BandwidthEQ2 TypeFrequencyGain +/-BandwidthEQ3 TypeFreq

52O: Yes X: NoFUNCTION TRANSMITTED RECOGNISED REMARKSBASIC CHANNEL Default Changed1-161-161-161-16MemorisedMODE X XNOTE NUMBER X XVELOCITY X XA

53Inputs: 2 channelsMaximum level +20dBu, 10kΩΩΩΩΩ impedance,Pin 2 +, electronically balanced.Outputs: 6 channels (FDS-336), 4 Channels (FDS-334)Maxim

54FDS-336 Minidrive Block Diagram

6Warranty InformationIMPORTANTWhen sold to an end user by BSS Audio or a BSS Audio Authorised Reseller, this unit is warranted by theseller to the pur

7UnpackingCarefully unpack the unit and inspect it for shipping damage. If any damage is discoveredimmediately contact the dealer from whom you purch

8IntroductionThe principle behind the Minidrive was to harness the recent leaps in audio signal processingtechnology to produce a range of digital pro

9Introductioneach Output and driver alignment or remote stack delays can easily be set up. Outputs can belinked to follow the settings made for a par