BSS Audio MSR-600 II Series, User Manual

Page 1: ...ion appears at the head of each section under the main title As you read further into each subsequent section more detailed specific information is given Should you have any comments or questions abou...

Page 2: ...reduce the risk of fire or electric shock refer servicing to qualified service per sonnel or equivalent This Equipment is intended for rack mount use only SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF...

Page 3: ...ded interconnecting cables Manufacturer s Name BSS Audio Manufacturer s Address 8760 S Sandy Parkway Sandy Utah 84070 USA declares that the product Product name MSR602II and 604II Note Product name ma...

Page 4: ...At the same time the information is structured under a series of broad headings for easy access So where possible within each section The most immediate information appears at the head of each sectio...

Page 5: ...4 3 Channel coding 19 4 4 Dual power supply operation 20 4 5 Output drive level setting 20 4 6 Multiple output Distribution Amplifier configuration 22 4 7 Stereo Summing Configuration 24 5 0 Compatibi...

Page 6: ...very much in excess of its design capability and as a consequence the level and quality of the sound is impaired Fig 1 A further complication can arise within such a system from multiple earthing as e...

Page 7: ...outes the signal to a calibrated HEADROOM meter and a headphone monitor amplifier built into the MSR 602 II power supply unit Each channel also has a CLIP LED to give constant warning against signal o...

Page 8: ...r and high quality headphone amplifier give the operator absolute confidence in signal integrity during setting up and provide an indispensable aid to trouble shooting and fault detection The signal w...

Page 9: ...manship and materials used in manufacture for a period of one year from date of shipment Faults due to purchaser misuse unauthorised modifications or accidents are not covered by this warranty No othe...

Page 10: ...8 MSR 600 II Series Connections and Control Descriptions 3 0 Connections and Control Descriptions F300MAL250V F3MAL250V F3MAL250V F10E Fig 2 MSR 602 II and MSR 604 II...

Page 11: ...the colours of the wires in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The wire which is coloured green a...

Page 12: ...k framework that this unit might be mounted into is assumed to be connected to the same grounding circuit the MSR 604 II has electronically balanced audio connections and does not need disconnection o...

Page 13: ...I units NB this is opposite to the way early MSR 604s were racked Having the power supply at the top gives superior hum performance and also places the HEADROOM meter and headphone amplifier in the mo...

Page 14: ...emote attenuator switching and microphone screening it is important that the pin 1 earth connection is maintained See section 4 5 for configuring the output drive level This is electronically balanced...

Page 15: ...function Always replace blown fuses with the correct value The HEADROOM meter is calibrated to show signal level relative to the clip point In practice the red 0db LED will illuminate when the signal...

Page 16: ...to 10dB In the line position phantom powering is disabled and the maximum permitted signal level is 33dBu with the GAIN set to 10dB The GAIN switch allows the input amplifier gain to be changed in 10...

Page 17: ...h the desk phantom switch as he would if a phantom powered microphone were directly connected to the desk input CAUTION USE OF THE DESK PHANTOM SWITCH IS ALMOST CERTAIN TO PRODUCE AN AUDIBLE CLICK SO...

Page 18: ...It is envisaged that a number of the MSR 604 II units will be racked together with one MSR 602 II power supply The metal case of the MSR 604 II is not connected to the electronic 0V and is taken to t...

Page 19: ...oportional to the current demanded from the PSU In all cases the MSR 602 II and the MSR 604 II s MUST be fully supported along their depth For touring system failure to observe this precaution will ca...

Page 20: ...ements for a complete MSR 600 system where the microphone shielding is held directly to ground The star grounding point is the main front of house mixing console and this earth is the one used to shie...

Page 21: ...tage monitor console as the main star point In any system it is important to remember a Choose one star point for all grounding b Ensure all microphone screening is permanently held to this ground c E...

Page 22: ...rive at mic or line level A third setting which may be described as Hot mic level is also available in order to provide a headroom structure which is compatible with previous versions of the MSR 604 A...

Page 23: ...ption Level dB Note 1 3dBm 3dBm 0 Mic level output Factory default 13dBm 13dBm 10 MSR 604 pre Mk II compatibility 23dBu 23dBu 20 Line level output Note 1 Gain between input XLR and output XLR with cha...

Page 24: ...annels This bus is continued via the multiway LOOP connector between MSR 604 II units allowing blocks of D A channel to span several output sections Figure 12 shows the bus and the bus linking headers...

Page 25: ...604 IIs that are connected in the rack The limiting factor on how many channels may be linked is the paral lel loading that occurs on the drive from the input stage The recom mended maximum is sixtee...

Page 26: ...ion are used to set the required operating conditions the controls on the other channels are disabled except for the CLIP LEDs and the LISTEN switches which may be used to confirm that the signal is r...

Page 27: ...channel bus linking will be restricted to operating within individual MSR 604 II units Remove the top cover plates on MSR 604 IIs and locate the two jumpers JP14 and JP15 next to the aluminium regula...

Page 28: ...ottom of the rack away from the power supply Using the adaptor leads connect the Mk I units between the MSR 602 II LOOP RETURN socket and the final MSR 604 II LOOP OUT socket If the units are wired in...

Page 29: ...ails to each channel are protected by fusible resistors so that in the event of a short circuit fault in one channel the other three are not affected The input signal passes via RFI filters to the MIC...

Page 30: ...lled they are fitted in place of the attenuators and the output headroom is preset at 3dBu The FEED AMPLIFIER buffers the signal and drives the dual secondary isolating FEED TRANSFORMER which is conne...

Page 31: ...II input transformer kit Z MSRTXIII 01 This is per channel with four required for one MSR 604 II unit Full fitting instructions are provided with this kit Provision has been made within the MSR 604 II...

Page 32: ...nally preset 3dBm 13dBm 23dBu Impedance 23 71 100 Max load 200 600 600 Feeds Two XLR 3M Transformer balanced Max level 3dBu Impedance 50 Max load 600 Isolation 2 5kV ACrms for 1 minute Gain 40dB to 50...

Page 33: ...0V 27V F3AL250V 27V F300MAL250V 48V Connectors 9 pin D female Loop out 9 pin D male Loop return System Ground Lift Rear panel Slide switch Indicators 3 LEDs post fuse on 27V 27V and 48V outputs Headro...

Page 34: ...60 High Power Audio Amplifier EPC 780 High Power Audio Amplifier FCS 926 VaricurveDualEqualiser Analyser FCS 920 VaricurveDualEqualiser Analyser FPC 900 Varicurve Remote Control System FCS 960 2 Chann...

Page 35: ...ipping prepaid You should include a statement listing the faults found The unit s serial number must be quoted in all correspondence relating to a claim We recommend that you record your purchase info...

Page 36: ...3 4 MSR 600 II Series USER NOTES...

Page 37: ...35 USER NOTES...

Page 38: ...3 6 MSR 600 II Series USER NOTES...