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V1.5 9 August 2006
Welcome to the MSR-602/604 II Users Manual
This Manual is the COPYRIGHT of BSS Audio. All reproduction and copying, other than for the legal
owner's personal use, or disclosure of part or whole to a third party, without prior written authorisa-
tion, is in violation of the European Copyright Convention. BSS Audio 1996
This manual is provided to assist sound engineers, installers and
consultants to fully understand the MSR-604 II and to benefit from its
full capability.
As opposed to most manuals, the contents can be read like a book.
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 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 about applying the
MSR-604 II within your application, please write to us at the address in
the warranty section.
MSR-600 II Series
User's Manual
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Related Manuals for BSS Audio MSR-600 II Series
Summary of Contents for BSS Audio MSR-600 II Series
- Page 1 MSR-600 II Series User's Manual This Manual is the COPYRIGHT of BSS Audio. All reproduction and copying, other than for the legal owner's personal use, or disclosure of part or whole to a third party, without prior written authorisa- tion, is in violation of the European Copyright Convention. BSS Audio 1996...
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Page 2: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS WARNING FOR YOUR PROTECTION C A U T I O N READ THESE INSTRUCTIONS: R I S K O F E L E C T R I C S H O C K D O N O T O P E N KEEP THESE INSTRUCTIONS A T T E N T I O N : R I S Q U E D E C H O C E L E C T R I Q U E - N E P A S O U V R I R... - Page 3 Revised: October 27, 2006 inch rack width and single rack-space for European Contact: mounting. Your local BSS Audio Sales and Service Office or In order to ensure proper ventilation and cooling it is to be mounted with one Harman Music Group...
- Page 4 MSR-604 II within your application, please write to us at the address in the warranty section. This Manual is the COPYRIGHT of BSS Audio. All reproduction and copying, other than for the legal owner's personal use, or disclosure of part or whole to a third party, without prior written authorisa- tion, is in violation of the European Copyright Convention.
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Page 5: Table Of Contents
Table Of Contents Table Of Contents Introduction MSR-604 II Mic/Line Signal Splitter MSR-602 II Power Supply Unit Unpacking Warranty Warning Connections and Control Descriptions 8 AC power connections and control settings DC power connections Audio connections MSR-602 II Controls MSR-604 II Controls System Implementation and Use Racking Grounding... -
Page 6: Introduction
MSR-600 II Series Introduction Introduction It is not uncommon within a sound system which uses microphones as a source of programme, for that microphone to be connected to the input of a number of different processing facilities. An example of this would be in sound reinforcement work where a stage microphone is required to drive the main ‘front of house’... -
Page 7: Msr-604 Ii Mic/Line Signal Splitter
MSR-604 II Microphone Signal Splitter flexibility of gain and level control, internal bus routing, signal meter- ing and a headphone monitoring facility. The MSR-604 II is a four channel, four way signal splitting package and the MSR-602 II is the system power supply capable of supplying power for 20 channels, that is, 5 separate MSR-604 II units. -
Page 8: Msr-602 Ii Power Supply Unit
MSR-600 II Series MSR-602 II Power Supply 1.2 MSR-602 II The MSR-602 II is the system power supply providing all the neces- sary DC voltages for the MSR-604 II. It utilises a custom designed low Power Supply field toroidal transformer and separate mumetal screen to reduce the possibility of mains field coupling into the electronic circuitry of the MSR-604 II. -
Page 9: Unpacking
Unpacking Warranty Warning Unpacking As part of our system of quality control, this product is carefully inspected before packing to ensure flawless appearance. After unpacking the units, please inspect for any physical damage and retain the shipping carton and all relevant packing materials, should the unit require repacking. -
Page 10: Connections And Control Descriptions
MSR-600 II Series Connections and Control Descriptions Connections and Control Descriptions Fig. 2 MSR-602 II and MSR-604 II... -
Page 11: Ac Power Connections And Control Settings
AC Power Connections and Control Settings 3.1 AC Power Before connecting the MSR-602 II to the AC power source, check that the voltage selector switch located on the rear panel is cor- Connections and rectly set. If a change is necessary, ensure that the mains fuse is Control Settings also changed for one of the correct rating. - Page 12 MSR-600 II Series Voltage Setting Safety EarthingAC Power Fusing Fig. 4 DC Connection Cabling The mains voltage selector switch provides simple, external adjust- 3.11 Voltage ment for operation on all international AC power standards. Setting At each switch position there is an acceptable tolerance over which the performance of the unit will not be affected and this is 90v-130v for the 120V position, and 180V-260V for the 240V position.
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Page 13: Dc Power Connections
DC Power Connections Fig. 5 Cable Wiring Details ent connection of line to line rather than line to neutral phase voltages when using a three phase supply. In either case internal transient suppressors (VDRs) can become damaged and will consistently blow replacement fuses. -
Page 14: Audio Connections
MSR-600 II Series Audio Connections 3.3 Audio The audio connections to the MSR-604 II are via XLR style connectors on the front and rear panels and their wiring configuration is as shown Connections in figure 5. Attention must be given to maintaining a consistent earthing system for safe and noise free operation. -
Page 15: Msr-602 Ii Controls
MSR-602 II Controls Since all the audio connections are balanced, the convention of pin 2 or pin 3 ‘hot’ is of no consequence provided all connections are wired in a similar manner. Please refer to appendix B for details of the transformer balancing options. -
Page 16: Msr-604 Ii Controls
MSR-600 II Series MSR-604 II Controls 3.5 MSR-604 II Controls PHANTOM ON/OFF The MSR-602 II power supply provides each MSR-604 II with 48v DC for phantom powering capacitor microphones. This is selected by operating the individual channel switch and it is connected across the ‘input’... - Page 17 MSR-604 II Controls REMOTE ATTENUATOR A 10dB input pad is activated when the channel detects a +48v phan- tom signal is present on the MAIN OUTPUT. This allows the front of house mixing engineer to remotely reduce the input signal if he de- tects that the channel is being overdriven.
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Page 18: System Implementation And Use
MSR-600 II Series System Implementation and Use Racking System Implementation and Use It is envisaged that a number of the MSR-604 II units will be racked 4.1 Racking 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 the mains safety ground via its DC lead connection into Fig. - Page 19 Racking the MSR-602 II. The MSR-602 II has a permanent safety ground con- nection via the power cord. Please read section 4.2 for discussion of grounding of the electronic The MSR-602 II power supply unit, unlike its predecessor has been designed for mounting at the TOP of a rack, above the MSR-604 II units it powers.
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Page 20: Grounding
MSR-600 II Series Grounding Fig. 7 MSR Grounding 4.2 Grounding In any multi-channel audio system where low level signals are being routed, it is important to ensure a consistent and positive earthing system to minimise any possible noise interference and hum loops. With the use of microphones it is especially important to ensure reliable earthing and screening not only for these noise considerations but also for safety of the performers. -
Page 21: Channel Coding
Channel Coding In general the stage monitor console will be connected to the stage mains power grounding system so the signal connecting cables to the ‘MON OUTPUT’ connector will require the earth connection to be disconnected. That is, the cable screening will be derived from the monitor console, but should not be connected to the electronic 0v earthing system of the MSR-604 II via pin 1 of the connector. -
Page 22: Dual Power Supply Operation
MSR-600 II Series Dual Power Supply Operation Output Drive Level Setting 4.4 Dual Power The power supply of the MSR-600 system performs a vital role within the sound system and although designed to exacting standards for Supply Operation ultimate reliability, some systems will require a back-up which would automatically take over on failure of the main supply. - Page 23 Fig. 11 Output Level Select Jumpers The permissible settings are shown in Figure 11, and the effects of each on system gain and headroom is described in Table 2. Note that combinations of header settings other than those shown should not be used as they do not give a proper balanced drive.
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Page 24: Multiple Output Distribution Amplifier Configuration
MSR-600 II Series Multiple Output Distribution Amplifier Configuration Fig. 12 Bus Linking Block Diagram. Default Jumpers 4.6 Multiple For use as a distribution amplifier, or in any situation where more than four outputs per channel are required, the MSR-604 II system may be Output Distribution reconfigured by moving internal jumpers. - Page 25 Multiple Output Distribution Amplifier Configuration Fig. 13A Bus Linking Ch1 Drives Out1 and 2 Ch3 Drives Out3 and 4 The signal labelled EXBUS-OUT passes via the LOOP OUT connector to the EXBUS-IN terminal in the LOOP IN connector on the adjacent unit, allowing a D.A.
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Page 26: Stereo Summing Configuration
MSR-600 II Series Multiple Output Distribution Amplifier Configuration Stereo Summing Configuration Fig. 13B Bus Linking In1+In2 Drives Out1 and 2 In3+In4 Drives Out3 and 4 CONTROLS When a group of channels is linked as a D.A., the controls associated with the chosen input section are used to set the required operating conditions. -
Page 27: Compatibility With Pre Mkii Systems
Compatibility With Pre MkII Systems Installing MSR-604 IIs in a Mk 1 System Compatibility With Pre MkII Systems Limited compatibility exists between early MSR-604 systems and MSR604 II units using adaptor leads to interconnect the power cables. Please order adaptor leads as MSR-604 Mk I adaptor kit Z-MSRIIADK- 01. -
Page 28: Installing Pre Mk Ii Msr-604S Into A New System
MSR-600 II Series Installing Pre Mk II MSR-604s Into a New System Installing a Mk II Power Supply Into a Mk I System and Vice Versa 5.2 Installing Pre together as described in section 3.2. Finally the pair of adaptor leads are used to insert the Mk II units into the systems power circuit. -
Page 29: Appendix A
Appendix A System Block Diagram and Circuit Description Appendix A advice if a replacement or a second power supply is required for a Mk 6.1 System Block I system. Diagram and Figure 14 shows the block diagram of the audio section of the MSR- Circuit Description 604 II. -
Page 30: Transient Suppressor Replacement
MSR-600 II Series Transient Suppressor Replacement balanced 10dB pad using a relay controlled by a circuit which moni- tors the MAIN OUTPUT XLR for the presence of phantom DC voltage. The balanced signal then passes through the optional input trans- former, if fitted, and DC blocking capacitors to the low noise INPUT AMPLIFIER. -
Page 31: Appendix B
Appendix B Input Transformer Balancing Output Transformer Balancing Appendix B Figure 15 indicates the location and specification for the suppressors. 7.1 Input Transformer In some situations it might be necessary to provide a transformer balanced input and provision has been made within the MSR-604 II for Balancing it’s mounting. -
Page 32: Technical Specifications
MSR-600 II Series Technical Specifications Technical Specifications Please order as ‘MSR-604 II balanced output transformer kit Z- MSR-604 II MSRTX0II-01’. This is per channel with four required for one MSR-604 II unit. Full fitting instructions are provided with this kit. Channels Four: Independant or internally interconnected Inputs... - Page 33 Load impedance 4Ω to 600Ω Max output 4Ω:860mWrms 200Ω:750mW rms Level control Continuously variable -90dB to 0dB Headroom >MSR-604 II channel clip In keeping with our policy of continued improvement, BSS Audio reserve the right to alter specifications without prior notice.
- Page 34 Should you experience any difficulty in operating this equip- ment please contact your local dealer who will also be able to supply you with information on the full range of equipment manufactured by BSS Audio. DPR-402 2 Channel Compressor, De-esser, and Peak Limiter...
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Page 35: Warranty
Warranty Warranty Information This unit is warranted by BSS Audio to the original end user purchaser against defects in workmanship and the materials used in its manufac- ture for a period of one year from the date of shipment to the end user. - Page 36 MSR-600 II Series USER NOTES...
- Page 37 USER NOTES...
- Page 38 MSR-600 II Series USER NOTES...
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