BSS Audio FCS-960 User Manual

1Welcome to the FCS-930/960 Users ManualWelcomeV2.2 8 December 1995This Manual is the COPYRIGHT of BSS Audio. All reproduction and copying, other than

10FCS-930/960Ground Loop ControlPowering Up4.5 Ground LoopControlStrict adherence to the wiring conventions noted above within a fullybalanced signal

11Control DescriptionsFront Panel5.0 Control Descriptions5.1 Front Panel11 Filter boost and cut fader control. Move this fader to vary the amount of b

12FCS-930/960Rear Panel5.2 Rear Panel8 Mains power fuse is 20mm long and rated at T250mA for 120V voltage setting andT200mA for the 240V voltage sett

13Using the FCS-930/960The FCS-930/960 Graphic equaliser is the result of a detailed study ofsound engineers and contractors requirements plus many ho

14FCS-930/960Using the FCS-930/960In general you would use this mode where amplitude cuts are primarilybeing introduced. It still however, has many ap

15Filter Shape and Interaction EffectsGraphic equalisers have tremendous value in their ability to modifythe amplitude response of a sound system. The

16FCS-930/960Filter Shape and Interaction Effectsment of it’s sharpness or selectivity, and the boost/cut shape is sym-metrical about the 0dB line.Fig

17Filter Shape and Interaction EffectsFig 7. shows the effect on selectivity as different levels of boost (orcut) is applied, for conventional equalis

18FCS-930/960AppendixChassis 0V RemovalTransient Suppressor Replacement8.0 Appendixfor conventional gyrator designs indicate inadequate selectivity at

19AppendixOptional Balancing Transformer FittingOptional Security Cover8.3 OptionalBalancingTransformer FittingThe two VDRs are mounted on a small ci

2FCS-930/960This equipment has been tested and found to comply with thefollowing European Standards for Electromagnetic Compatibility.Emission Specifi

20FCS-930/9609.0 Technical SpecificationsTechnical SpecificationsA steel security cover is available for the FCS-930/960 which is securedby two out of

21Technical SpecificationsIn keeping with our policy of continued improvement, BSS Audioreserve the right to alter specifications without prior notice

22FCS-930/960This unit is warranted by BSS Audio to the original end user purchaseragainst defects in workmanship and the materials used in its manufa

23User Notes

24FCS-930/960User Notes

25User Notes

26FCS-930/960

3Table Of ContentsTable Of Contents1.0 Introduction 42.0 Unpacking 53.0 Mechanical Installation 64.0 Connections 74.1 AC Voltage Setting 84.2 Safety E

4FCS-930/9601.0 IntroductionIntroductionThe FCS-930 and FCS-960 are dual mode graphic equalisers; eachchannel featuring 30 filter bands spaced at the

5UnpackingAs part of BSS AUDIO's system of quality control, this product iscarefully checked before packing, to ensure flawless appearance.After

6FCS-930/960Mechanical InstallationA vertical rack space of 2U (3.5", 88.9mm) for the FCS-930, and 3U(5.25", 133.4mm) for the FCS-960 is req

74.0 ConnectionsUnpackingWarrantyWarningBefore connecting your unit to its AC power source, check that thevoltage selector switch located on the rear

8FCS-930/960AC Voltage SettingSafety EarthingAC Power Fusing4.1 Voltage SettingThe mains voltage selector switch provides simple, external adjustmentf

9Audio Connections4.4 AudioConnectionsFig. 3 Input and OutputConnector WiringThe FCS-930/960 audio inputs are RFI filtered and electronicallybalanc