MA60 & MA60media MIXER-AMPLIFIERS I 0 I 0 Installation and User Guide MA60 & MA60media Installation and User Guide v1.
WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. CAUTION: Use of controls or adjustments or performance of procedures other than those specified may result in hazardous radiation exposure.
9. 10. 11. 12. 13. Do not defeat the safety purpose of the polarized or grounding - type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
Contents Safety Information.........................................................6 Safety notes regarding installation........................................................ 6 Conformities.............................................................................................. 6 Safety Considerations and Information............................................... 7 CAUTION – High Voltages................................................................ 7 CAUTION - Mains Fuses.........................
Appendix...................................................................... 29 Installation of speaker EQ cards.......................................................... 29 Installation Instructions..................................................................... 30 PCB layout diagrams.............................................................................. 30 Table of internal jumpers and default settings.............................31 General Notes..............................................
Safety Information Safety notes regarding installation • • • • • • • • Do not expose the unit to water or moisture. Do not expose the unit to naked flames. Do not block or restrict any air vent. Do not operate the unit in ambient temperatures above 35 °C. Do not touch any part or terminal carrying the hazardous live symbol ( ) while power is supplied to the unit.
Safety Considerations and Information The unit must be earthed. Ensure that the mains power supply provides an effective earth connection using a three-wire termination. When the mains switch is in the off (‘O’) position the live and neutral conductors of the mains transformer are disconnected. CAUTION – High Voltages Do not touch any part or terminal carrying the hazardous live symbol ( ) while power is supplied to the unit.
General Description The Cloud MA60 and MA60media are compact and versatile mixer-amplifiers suitable for use in Licensed Premises, Retail, Leisure and many other venues. The units can deliver 60 W (mono) into 4 ohm loads; a transformer option is available for driving 100 V, 70 V or 50 V-line loudspeaker systems. The MA60media has an integral digital media player which replays audio files in various formats from SD cards or USB memory devices. In all other respects, the two models have identical facilities.
• Auxiliary output source selection (by internal jumper) – source may be fixed or following main output • Remote Standby control input • 2U half-width (9.
Block diagram CONNECT INPUT TO 0V TO OPEN MIC CHANNEL PHANTOM POWER 15V ACCESS BYPASS ACCESS INPUT 0V ISOLATION TRANSFORMER MIC 1 MIC EQ BYPASS TEL INPUT TRANSFORMER 0V SPEAKER OUTPUT OPTIONAL LINE OUTPUT TRANSFORMER 100Hz 100V 70V 50V COM 8 OHMS MOH SOURCE 0V 0V 0V 600 OHMS MIN LOAD 4 OHMS AVO MOH OUTPUT 0V MUTE CONTACT TYPE MEDIA PLAYER MUSIC MUTE LINE 1 + VCA LINE 2 FORCE FRONT PANEL SOURCE SELECT REMOTE LEVEL CONNECTOR 3 2 1 LINE 3 0V LINE 4 LINE 4 PRIORITY 3s RELEASE TIME
Front panel description 15 16 17 18 10 11 12 13 14 I 0 1 1. 2. 3. 4. 5. 6. 7. 2 3 5 4 6 7 8 9 AC Power switch Power ON LED MICROPHONE LEVEL control – sets volume of mic input MUSIC LEVEL control – adjusts music volume PEAK LED – illuminates when internal signal clipping occurs MUTE LED – illuminates when external Music Mute control is active MUSIC SOURCE – rotary switch selecting music source (LINE 1* to LINE 4) The following front panel items are only fitted to the MA60media: 8. 9. 10. 11.
Rear panel description 1 20 3 5 2 6 7 15 16 14 4 13 11 10 12 9 8 17 18 19 1. LINE 1 to LINE 4 – stereo line inputs for music sources (phono sockets) 2. MP3/Laptop input – alternative LINE 2 input (3.5 mm stereo jack) 3. GAIN 1 to GAIN 4 – level trims for each line input 4. OUTPUT EQ – LF and HF EQ adjustment for music and mic signal (selectable to music-only by internal jumper) 5. MIC 1– balanced mic input 6. GAIN – mic input gain 7. ACCESS – external paging control input for MIC 1 8.
15. REMOTE MUSIC CONTROL – for connection of RL-1 or RSL-4 remote control panels 16. REMOTE/LOCAL – enables remote music control 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.
Installation Mechanical The MA60 and MA60media 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/MA60media 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/ MA60media units side-by-side. See below for mounting instructions.
Rackmounting two units Two MA60/MA60media units may be rackmounted side-by-side with the RE-S mounting kit. The RE-S kit consists of two rack ears, two connecting plates and sixteen M4 countersunk screws. To rack-mount a pair of MA60/MA60medias, proceed as follows: 1. Fit one of the rack ears to the left-hand side of one of the MA60s as shown in the diagram below, using four of the screws provided. 2. Repeat Step 1 for the right-hand side of the other MA60 unit. 3.
Ventilation MA60 and MA60media mixer-amplifiers are cooled by natural convection, via vents in the top and bottom panels. Always allow adequate space around the unit(s) to allow a free flow of air. In 19” rack installations we recommend leaving 1U of rack space above and below each unit. In free-standing installations, always fit the rubber feet supplied, and do not stand any other items on top of the unit.
Music Level Control A front panel-mounted music level control 4 is provided. Remote control of music level is possible by connecting a remote control plate (either RSL-4/RSL-4A or RL-1/ RL-1A), see “Remote Control of Music Source Select and Level” on page 17below. If the music level is set too high, the front-panel PEAK LED 5 illuminates. Note that this LED also indicates excessive mic signal level.
Sound Store, emergency announcement system or similar source forms part of the audio system. When Music Priority mode is enabled, the unit will operate normally until a signal is detected at Line 4’s input. When this happens, the MA60/MA60media switches its music source automatically to Line 4 (assuming it is not already selected to Line 4). Once the signal at Line 4 stops (e.g., when the selected jukebox track has finished), the previously selected source will smoothly restore to its former level.
information regarding the internal jumpers. Care should be taken to ensure that phantom power is activated only when the microphone connected to the input requires it – i.e., a capacitor or electret type; other types of microphones (such as dynamic or ribbon) may be damaged if a DC voltage is applied to them. Mic gain adjustment The mic input has a preset gain control 6 adjacent to the input connector. The gain can be adjusted over a range of 40 dB, from 10 dB to 50 dB.
High pass filter The microphone signal path includes a fixed high-pass filter. This attenuates the mic signal below 100 Hz, which helps to reduce the effects of microphone handling noise. The filter may be taken out of circuit by moving internal jumper J7 from ON to OFF. See “PCB layout diagrams” on page 30 for further information regarding the internal jumpers.
100/70/50 V-line systems An optional transformer kit (CXL-50T) is available for the MA60/MA60media, to permit the unit to directly drive 100 V, 70 V or 50 V-line loudspeaker systems. The transformer is rated at 50 W output, and is mounted internally. The outputs are available on a 4-pin 5 mm-pitch screw-terminal connector which occupies the hole in the rear panel normally covered by a blanking plate.
100/70/50 V-LINE OUTPUT CONNECTOR PCB MAIN PCB Red/Brown/ Blue/Black CN15B CN15A White/Black MAINS TRANSFORMER CXL-50T OUTPUT TRANSFORMER MEDIA PLAYER PCB FRONT PANEL CONTROLS PCB FRONT PANEL 5. The primary winding of the transformer is terminated in a two-pin Molex-type connector. This should be plugged into the header marked CN15B on the main PCB. See “PCB layout diagrams” on page 30 for location. 6. On the rear panel, remove the plastic blanking plate covering the LINE OUTPUT connector hole.
Connect to CN15B Red White Brown 1 100 V 2 70 V 3 50 V 4 COM Blue Black Black Pri. Sec. CXL-50T To 100/70/50 V-line speaker system Rear panel connector 11. After plugging the connector in, the safety cover should be fitted by securing it to the female ends of the hex pillars using the two M3 screws supplied. Important - Note that the low-impedance output should not be used once the line output transformer is fitted.
The output connector is a 4-pin 3.5 mm-pitch screw terminal type on the rear panel 10 . Two of the pins (labelled ‘0 V’ and ‘8Ohm’) are the low-power, lo-Z output, with one pin connected internally to 0 V. The other two pins (labelled ‘600Ohm’) are the transfomer-isolated line level output, suitable for connection to a nominal 600 ohm load. The output level is nominally 0 dBu, and is transformer-coupled to provide full galvanic isolation from a telephone system.
Pre Out To permit the connection of additional amplifiers (or other equipment), a balanced output from the MA60/MA60media’s pre-amplifier section is available at a rear panel 3-pole, 3.81 mm-pitch screw terminal connector. MA60 Pre Out: pin 1 ground pin 2 cold pin 3 hot Balanced Input (e.g., XLR): pin 1 ground pin 2 hot pin 3 cold 3 1 2 3 - SCN + SCN MA60 Pre Out: pin 1 ground pin 2 cold pin 3 hot 1 2 1 2 SCN - + Unbalanced Input (e.g.
connector on the rear panel. The input is usually connected to a pair of isolated relay contacts activated by the fire system. Note that the Music Mute function only mutes the MA60/MA60media’s main output; the MOH/Utility output remains active. When Music Mute is activated, the front panel MUTE LED 6 illuminates to confirm that the resulting silence is due to an external Music Mute command.
MA60media digital media player NOTE: This section of the manual applies to the MA60media only The MA60media includes an integral digital audio player, which can play audio recorded as WMA or MP3 files from either USB memory devices or SD cards plugged into their respective sockets on the front panel 8 and 9 . A standard set of “transport” controls is provided on the front panel to play, stop, pause, etc., programme material.
The front panel transport controls operate in a similar manner to the standard controls on, say, a CD player. Plugging a memory device into one of the front panel sockets will activate the player and after a short delay, the player will enter PLAY mode, confirmed by the illumination of the PLAY LED 15 . In Normal Mode (see below), the first track played is the one whose filename starts with the lowest numeric/alpha characters.
Repeat mode If Repeat Mode is enabled while a track is playing, the track will be repeated when it has finished. This repetition will continue until Repeat Mode is cancelled. Repeat Mode may also be selected from Stop Mode; the next track played when H is pressed will then repeat until Repeat Mode is cancelled. Note that Repeat Mode only applies to individual tracks; it is not possible to repeat a sequence of tracks.
Installation Instructions Refer to the PCB layout diagram (see “PCB layout diagrams” on page 30) for the location of the EQ module connector and its associated bypass jumper J8. To install an EQ module, proceed as follows: 1. 2. 3. 4. 5. Switch off the power and isolate the unit from the mains. Remove the top panel. Move jumper J8 on the main PCB from ‘ON’ to ‘OFF’.
6S 3S ON OFF (REMOVE J11 FOR 12S) J11 J12A&B J9 L1 MP3 L2 L3 L4 SW SW FR OFF ON J10 J6 MA60 INPUT PCB VIEW FROM FRONT NOT TO SCALE - Only primary components shown Table of internal jumpers and default settings JUMPER ON PCB PURPOSE OPTIONS DEFAULT J1 Main Mic input phantom power ON/OFF OFF J2 Main J3 Main Mic input transformer isolation ON/OFF OFF 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
General Notes Multi-zone applications MP3 DOCK CD PLAYER TV TUNER 1 2 3 4 MAIN OUT LINE INPUTS MA60MEDIA JUKEBOX PRE OUT MIC INPUT 1 2 3 4 LINE INPUTS Where the sound system specification calls for separate control in several zones, MA60s and/or MA60medias can be used in multiples. These notes discuss the principle of connecting external input sources to several units in parallel. Note that the integral media player in any one MA60media will only play in the zone to which its output is connected.
EMC considerations MA60 and MA60media mixer-amplifiers fully conform to the relevant electromagnetic compatibility (EMC) standards and are technically well behaved.You should experience no problems interfacing units to other items of equipment and under normal circumstances, no special precautions need to be taken.
Technical specifications Line inputs Low-Z output: +0 dB/-1 dB from 20 Hz – 20 kHz (65 Hz filter out) Frequency response 100/70/50 V-line outputs (with CXL-50T transformer fitted): +0 dB/-3 dB from 20 Hz – 20 kHz (65 Hz filter switched out) Low-Z output: <0.05% @ 1 kHz, 1 dB below full power (80 kHz bandwidth) Distortion High voltage output: <0.05% @ 1 kHz, 1 dB below full power (80 kHz bandwidth) Sensitivity 195 mV (-12 dBu) to 2.
General specifications Power input 230 V, 115 V versions available Fuse rating 230/120 V - 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-50T transformer) 3.5 kg (without CXL-50T transformer) MA60 & MA60media Installation and User Guide v1.
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.
