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MA60 & MA60

media

Installation and User Guide v1.0

14

Installation

Mechanical

The MA60 and MA60

media

mixer-amplifiers may either be mounted in a standard 19”

equipment rack or used free-standing. Each unit occupies 2U of vertical rack space

and half a standard rack width. In order to install MA60/MA60

media

units in a 19”

rack, rackmount kits (available from Cloud) must be fitted. Two types of rackmount

kit are available: one for mounting a single unit, the other for mounting two MA60/

MA60

media

units side-by-side. See below for mounting instructions.

If using the MA60/MA60

media

free-standing, the rubber feet (supplied with each

unit) should be fitted. The unit should always be stood on a flat surface. Care should
be exercised in selecting a location for a free-standing unit, which should allow

ventilation but be clear of any liquid or similar hazard.

Rackmounting a single unit

A single MA60/MA60

media

may be rackmounted with the RE-L mounting kit.

The RE-L kit consists of two rack brackets and eight M4 countersunk-head screws.

To rack-mount a single MA60/MA60

media

, simply fit the two brackets as shown in the

diagram below, using the screws provided.

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Summary of Contents for MA60

Page 1: ...MA60 MA60media Installation and User Guide v1 0 1 MA60 MA60media MIXER AMPLIFIERS Installation and User Guide I 0 I 0 ...

Page 2: ... voltages within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance IMPORTANT SAFETY INSTRUCTIONS 1 Read these Instructions 2 Keep these Instructi...

Page 3: ...e does not operate normally or has been dropped Do not expose the apparatus to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the apparatus L appareil ne doit pas être exposé aux écoulements ou aux éclaboussures et aucun objet ne contenant de liquide tel qu un vase ne doit être placé sur l appareil The mains plug is used as the disconnect device an...

Page 4: ...features 8 Applicable Models 9 What s in the Box 9 Block diagram 10 Front panel description 11 Rear panel description 12 Installation 14 Mechanical 14 Rackmounting a single unit 14 Rackmounting two units 15 Ventilation 16 Connections and adjustments 16 Music inputs 16 Mic input 18 Outputs 20 Music Mute Input 25 Ext Standby Input 26 MA60media digital media player 27 Compatible media 27 File types a...

Page 5: ...tallation of speaker EQ cards 29 Installation Instructions 30 PCB layout diagrams 30 Table of internal jumpers and default settings 31 General Notes 32 Multi zone applications 32 EMC considerations 33 Earthing 33 Technical specifications 34 General specifications 35 ...

Page 6: ...sonnel If the moulded plug is cut off the AC power lead for any reason the discarded plug is a potential hazard and should be disposed of in a responsible manner Conformities This product conforms to the following European EMC Standards BS EN 55103 1 2009 BS EN 55103 2 2009 This product has been tested for use in commercial and light industrial environments If the equipment is used in controlled E...

Page 7: ...itted with a replaceable mains fuse This is located on the rear panel below the AC mains input connector Only replace the fuse with one of an identical type and rating ACVOLTAGE FUSETYPE FUSE RATING 230V or 115V 20 mm x 5 mm T2A 2 amp Note that the failure of the mains fuse may indicate an internal fault If a replacement fuse fails immediately the power is restored no further attempt should be mad...

Page 8: ...ined level control music source selector can be wired to the unit for installations that require remote control MA60 and MA60media main features Four input mixer amplifier with integral 60 W mono power amplifier Built in digital music player supports MP3 and WMA files from USB memory sticks or SD or MMC cards at a wide range of standard data rates sample frequencies Model MA60media only Gain trims...

Page 9: ...s the installation and operation of the following models Cloud MA60 4 input 60 W mono mixer amplifier Cloud MA60media 4 input 60 W mono mixer amplifier with integrated digital media player All models are 2U half rack width units Apart from the inclusion of the digital media player in the MA60media the two models are identical for the practical purposes of installation and operation Unless specific...

Page 10: ...EAKER OUTPUT OPTIONAL LINE OUTPUT TRANSFORMER 100V 70V 50V COM MIN LOAD 4 OHMS 0V AVO 0V 0V HIGH PASS FILTER MEDIA PLAYER LINE 1 LINE 2 LINE 3 LINE 4 LINE 4 PRIORITY MUTE CONTACT TYPE MUSIC MUTE VCA EQ DCP EQ SOCKET 65Hz PRE OUT VE VE 0V 0V 0V RSL 4 RL 1 OPTIONAL REMOTE SOURCE AND LEVEL FRONT PANEL MUSIC SOURCE AND LEVEL CONTROLS REMOTE LEVEL CONNECTOR 3 2 1 FORCE FRONT PANEL SOURCE SELECT POWER A...

Page 11: ...of USB memory device containing audio files 9 SD Card slot accepts SD or MMC memory cards containing audio files 10 PLAY PAUSE button starts or pauses playback of current track file 11 STOP button stops playback 12 PREVIOUS button moves playback point to start of previous track or file 13 NEXT button moves playback point to start of next track or file 14 MODE button selects Random and Repeat Modes...

Page 12: ...6 GAIN mic input gain 7 ACCESS external paging control input for MIC 1 8 LOW Z OUTPUT speaker output for low impedance circuits 9 LINE OUTPUT under protective cover for connection to 100 70 50V line loudspeaker system when optional internal transformer is fitted 10 MOH UTILITY OUT auxiliary output can be used to provide Music On Hold to telephone system 11 MOH UTILITY MIC LEVEL sets level of micro...

Page 13: ...ol connector and disables front panel controls remote source select may be overridden by internal jumper 17 EXT STANDBY for remote power down by PIR sensor or other external control equipment 18 IEC mains input 19 Mains fuse The following rear panel item is only fitted to the MA60media 20 MEDIA L1 switch selects Line 1 input to be external source or internal media player ...

Page 14: ...wo MA60 MA60media units side by side See below for mounting instructions If using the MA60 MA60media free standing the rubber feet supplied with each unit should be fitted The unit should always be stood on a flat surface Care should be exercised in selecting a location for a free standing unit which should allow ventilation but be clear of any liquid or similar hazard Rackmounting a single unit A...

Page 15: ... the diagram below using four of the screws provided 2 Repeat Step 1 for the right hand side of the other MA60 unit 3 Remove the two raised head hex socket M4 screws at the right hand side of the front panel of the first unit and the corresponding two screws on the left hand side of the front panel of the second unit 4 Line the two units up next to each another and fit one of the two flat connecti...

Page 16: ...input on a single connector Plugging into this socket will disconnect any source connected at Line 2 s phono connectors Line 4 input can be configured to have priority over any other music source see Music Priority on page 17 Sensitivity Gain Control Each of the stereo line inputs has an input impedance of 47k ohms and a pre set gain control on the rear panel below the respective input sockets 3 T...

Page 17: ...URCE LEVEL CONTROL WIRING RSL 4 USE TWO CORE SCREENED CABLE 1 2 3 REMOTE MUSIC CONNECTOR 1 2 3 REMOTE LEVEL CONTROL WIRING RL 1 SINGLE CORE SCREENED CABLE MAY BE USED Use two core RSL 4 RSL 4A or RL 1 RL 1A or single core RL 1 RL 1A only screened cable to connect the remote level plate The maximum recommended cable length is 100 m Pressing the REMOTE LOCAL button 16 above the rear panel connector ...

Page 18: ...and MA60media are provided with a single microphone input allowing the unit to be used for announcements By default the mic input has automatic priority over the music source It is also compatible with paging microphones with zone selection by contact closure such as the Cloud PM range including the PM1 single zone microphone See Paging control on page 19 for more details The MA60 s microphone pre...

Page 19: ... level Paging control The mic input is equipped with an external access control input this is a 2 pin 5 mm pitch screw terminal connector 7 adjacent to the mic input connector The access input is primarily intended to provide compatibility with paging microphones and their associated switching arrangements By default mic priority over music is via AVO mode AutomaticVoiceOver and the access port is...

Page 20: ...internal jumpers This inserts a transformer in series with the input connector to provide full electrical isolation from the telephone system Note that the mic input sensitivity is decreased by 10 dB when the transformer is enabled and this results in the mic gain control operating over the range 0 dB to 40 dB The audio or paging output of the phone system should be connected to the MIC 1 input in...

Page 21: ...inated in a PCB mounted 4 pin connector M6 countersunk head fixing bolt Safety cover 2 x M3 hex pillars 2 x M3 x 6 screws Mating 4 pin connector 2 x cable ties Proceed as follows 1 Disconnect the MA60 MA60media from AC mains 2 Take the top panel off by removing the eight M3 screws six on the top panel itself two through the front panel securing it 3 Turn the unit upside down and remove the plastic...

Page 22: ...plate covering the LINE OUTPUT connector hole 7 Fit the 4 pin connector on the ends of the secondary winding leads from the transformer the remaining four into this hole so that the threaded holes in the two PCB mounting brackets line up with the two holes alongside the connector Use the male ends of the hex pillars supplied to secure the PCB and connector in place 8 Use the two cable ties supplie...

Page 23: ... are of the preset type and are located on the rear panel 4 The treble control has a range of 10 dB at 10 kHz and the bass control has a range of 10 dB at 50 Hz By default this EQ adjustment affects only the music signal but it may be enabled for the microphone input by moving internal jumper J10 in which case the rear panel controls will affect the both the music source and the microphone signal ...

Page 24: ... The relevant signal level is zero with the preset control in its fully anticlockwise position Note that the signal at this output is NOT altered by the front panel MUSIC LEVEL control or the rear panel MUSIC EQ preset adjustments Note that the MIC LEVEL control should be turned fully down if the output is used for MOH with a telephone system otherwise internal paging announcements will be heard b...

Page 25: ...controls and settings on the front and rear panels levels source selection priority settings etc are effective at the Pre Out However note that neither the switchable 65 Hz high pass filter nor the fitting of an optional loudspeaker EQ card have any effect on this output Music Mute Input In some installations such as licensed premises or retail outlets within a shopping mall there may be a local a...

Page 26: ...alarm installation company should be consulted when making the connection The MA60 MA60media will mute on either a contact closure at the Music Mute input NO or an open circuit NC Selection of NO or NC operation is made with internal jumper J15 NO is the factory default See PCB layout diagrams on page 30 for further information regarding the internal jumpers The diagram below shows the two connect...

Page 27: ...capacity or SDHC cards up to 32 GB MMC cards of the same capacity are also compatible Filing systems supported are FAT16 or FAT32 File types and rates supported The MA60media will replay audio files recorded in either WMA or MP3 formats as follows WMA bitrates from 32 kpbs to 384 kbps MP3 MPEG 1 2 2 5 layer 2 or 3 decoding at bit rates from 32 kpbs to 384 kpbs includingVBR Sample rates supported a...

Page 28: ... or previous track may be selected for immediate play by pressing the E or F button respectively These buttons operate in any transport mode Unlike a CD player the F button will cause the play point to jump to the start of the previous track not that of the current one Three operational modes are available selected by the MODE button 14 labelled with the symbol Successive presses of the MODE butto...

Page 29: ...vailable on the memory device Note that this is not the same as the Shuffle mode found on portable MP3 players a fresh random selection from all available tracks is made at the end of each track and thus there is a possibility that the same track may be played twice in succession Appendix Installation of speaker EQ cards The MA60 and MA60media are compatible with single channel loudspeaker equalis...

Page 30: ...the top panel PCB layout diagrams The MA60 and MA60media have two PCBs which are fitted with jumpers the Main PCB and the Input PCB With the top cover removed from the unit and the rear connector panel towards you the Main PCB is fitted to the base at the rear of the chassis while the Input PCB is mounted vertically on the Main PCB immediately behind the rear panel and carries most of the connecto...

Page 31: ... Mic input transformer isolation ON OFF OFF J3 Main J4 Main J5 Main Mic Access Bypass ON OFF ON J6 Input MOH Utility music source SW L1 L2 L3 L4 MP3 SW J7 Main 100 Hz mic high pass filter ON OFF ON J8 Main EQ card bypass ON OFF ON J9 Input Force front panel source selection FR SW SW J10 Input Mic EQ bypass ON OFF ON J11 Input L4 Priority Release Time 3 s 6 s 12 s no jumper 3 s J12A Input L4 Priori...

Page 32: ...le to assume that most op amp based signal sources are easily able to drive a 10k ohm load allowing up to five MA60 MA60medias to be paralleled The input impedance of the mic input is more than 2k ohm making it suitable for microphones with a nominal impedance of 600 ohms or less A single 600 ohm microphone could therefore typically be connected to four paralleled mic inputs If this guideline figu...

Page 33: ... earth loops which may cause an audible hum on the system even with the gain controls set to minimum The 0V rail of an MA60 MA60media mixer amplifier is directly coupled to the chassis ground No interconnection problems should be encountered but if there is any hum or other extraneous noise when source equipment is connected the situation can generally be remedied by observing the following guidel...

Page 34: ... 22 kHz at speaker output relative to full power Microphone Inputs Frequency response Low Z output 3 dB 100 Hz 3rd order filter 1 dB 20 kHz High voltage output 3 dB 100 Hz 3rd order filter 2 dB 20 kHz Distortion 0 05 1 kHz 1 dB below full power 80 kHz bandwidth Gain range 40 dB range Input Impedance 2k ohms balanced Phantom Power 15V switchable per input by jumpers Headroom 20 dB Noise 127 dB EIN ...

Page 35: ...input 230V 115V 100V versions available Fuse rating 230 120V T2A H Fuse type 20 mm x 5 mm Cooling Convection cooled vents top and bottom Dimensions mm 213 0 wide x 88 high 2U x 278 deep connectors knobs Net weight 4 65 kg with CXL 60T transformer 3 5 kg without CXL 60T transformer ...

Page 36: ...Cloud Electronics Limited 140 Staniforth Road Sheffield S9 3HF England Tel 44 0 114 244 7051 Fax 44 0 114 242 5462 email info cloud co uk web www cloud co uk ...

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