Related Manuals for Cloud MPA MK2 Series
Summary of Contents for Cloud MPA MK2 Series
- Page 1 MPA MK2 SERIES SINGLE ZONE MIXER-AMPLIFIERS Installation and User Guide MPA MK2 Installation and User Guide V1.0...
- Page 2 WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. WARNING: SHOCK HAZARD – DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert you to the presence of uninsulated dangerous voltages within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS Read these Instructions. Keep these Instructions. Heed all Warnings. Follow all Instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. -
Page 4: Energy Efficiency Certification
Energy Efficiency Certification MPA MK2 Installation and User Guide V1.0... - Page 5 The Cloud MPA120 MK2 and MPA240 MK2 Mixer-amplifiers have been designed to meet the relevant provisions of the US Environmental Protection Agency’s ENERGY STAR® Program. The ENERGY STAR Program exists to identify products that contribute to the saving of energy and the reduction of harmful emissions, thereby both saving you money and protecting the environment.
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Page 6: Table Of Contents
Caution – Mains Fuse ............................... 8 Caution – Servicing ................................8 OVERVIEW ................................9 Introduction .................................... 9 Applicable Models ................................. 9 MPA MK2 Series main features ............................9 What’s in the box ................................10 Schematic Diagram ................................11 Front panel description ..............................12 Rear panel description ...............................13 INSTALLATION ...............................15... - Page 7 Facility Port ................................21 Connecting an active remote module ..........................22 Music Mute (Fire Alarm Interface) ........................23 Auto Power Down ................................23 Options and Additional Information ..........................23 Multi-zone Applications ..............................23 Control of music source and level via external DC .................................23 Using the Facility Port as an auxiliary input ......................24 APPENDIX ................................25 PCB jumper locations .................................25 Table of internal jumpers and default settings ......................26...
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Page 8: Safety Information
Only reassemble the unit using bolts/screws identical to the original parts. Cloud Electronics Limited manages its business and collaborates with its suppliers to comply with the European Union restriction of the use of certain hazardous substances... -
Page 9: Overview
• Paging control on Mic 1 input via short-to-ground access Introduction connection The Cloud MPA MK2 Series are audio mixer-amplifiers with • Mic 1 configurable as high-voltage input for paging from applications in Licensed, Retail, Leisure and similar venues. existing 70/100 V-line system Two models are available to suit different output power •... -
Page 10: What's In The Box
What’s in the box Please check the shipping carton for damage before opening. If there is damage, please contact your Cloud agent and the shippers. The packing carton should contain the following items: • MPA MK2 mixer amplifier • IEC mains lead (AC cord) with moulded plug appropriate to the territory •... -
Page 11: Schematic Diagram
Schematic Diagram MPA MK2 Installation and User Guide V1.0... -
Page 12: Front Panel Description
Front panel description MIC 1 and 2 LEVEL – level controls for Mic Inputs 1 and 2. MUSIC SOURCE – selects active Line Input (1 to 6). MUSIC LEVEL – adjusts level of selected Line Input. PEAK – red LED: illuminates if either Mic or Line signal levels are too high. MUSIC MUTE –... -
Page 13: Rear Panel Description
Rear panel description LINE 1 to LINE 6 – stereo line inputs for music sources. 10. GAIN 1 to GAIN 6 – level trims for each line input. 11. MUSIC EQ – LF and HF EQ adjustment for music channel. 12. - Page 14 24. SPEAKER SETTINGS – 3-pole DIP switch for setting output configuration: SWITCH NAME FUNCTION 65 HZ Enables 65 Hz high-pass filter (use with 70/100 V-line operation) SPK Z Configures output for low-Z or 70/100 V-line operation When SW2 = LO Z: selects output impedance to suit 4 ohm or 8 ohm loudspeakers SPK Z When SW2 = HI-Z: selects 70 V-line or 100 V-line operation 25.
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Page 15: Installation
Power Supply INSTALLATION The MPA MK2 has an internal power supply of the “universal” Hardware considerations type, and will operate on all AC mains supplies of between 85 V and 265 V, 45 to 65 Hz. An IEC mains cable with a plug The MPA MK2 mixer-amplifier is built in a 1U-high 19”... -
Page 16: Connections And Controls
Connections and Controls MPA MK2 mixer-amplifiers are compatible with standard Music Inputs Cloud remote control plates: RSL-6 Series (music source select and level) and RL-1 Series (level only). The unit has six stereo line inputs; these inputs are suitable Either type of plate may be connected at the rear 3-pin, 5... -
Page 17: Music Equalisation
Mic Input 2 and the selected line input: when J1A and J1B from OFF (factory default position) to ON. When reconfigured for paging, it operates as a standard Cloud- this priority is enabled, the unit will operate normally until a... -
Page 18: Gain Control
Hi-Z input Mic Input 2 - connections Mic Input 1 is provided with a second, alternative method of Connect microphones as shown below: connection, which by default is routed to the mic channel when selected. This is a high impedance, transformer-isolated input which can be connected directly to a 70 V-line or 100 V-line loudspeaker system. -
Page 19: Paging Control And Mic Priority
1 input operates as a standard microphone input. In the In either VOX or ACC mode, the music signal is faded back up PG position (switch down), it operates as a typical Cloud after the announcement is complete over a period of approx. -
Page 20: Outputs
Connecting to 70/100 V-line systems Outputs The MPA MK2 is a transformerless design and can directly Speaker Output drive 70 V-line or 100 V-line loudspeaker systems. The power amplifier stage is rated at 120 W (MPA120 MK2) or 240 W The power amplifier stage is fully protected against DC (MPA240 MK2). -
Page 21: Auxiliary Output
The wiring is as follows: The various optional Cloud remote active modules operate from DC power supplied by the MPA MK2. The current consumed by each module is minimal and in the vast majority of installations there will be no power supply issues. -
Page 22: Connecting An Active Remote Module
MPA MK2. The module also includes the functions of a Cloud RSL-6 Remote Control Plate, which allows remote control of the MPA MK2’s music level and music source PRIORITY selection. -
Page 23: Music Mute (Fire Alarm Interface)
Options and Additional Information Music Mute (Fire Alarm Interface) Multi-zone Applications In some installations (such as licensed premises or retail Where the sound system specification calls for separate outlets within a shopping mall), there may be a local authority control in several zones, multiple MPA MK2 mixer-amplifiers or fire service requirement to mute the music signals from can be used. -
Page 24: Using The Facility Port As An Auxiliary Input
pull-up will cause ‘OFF’ to be selected. The output impedance of the control voltage source should be low enough to overcome the effect of this resistor. +12 V CONTROL SYSTEM Using the Facility Port as an auxiliary input SOURCE CONTROL LEVEL CONTROL 0 V REF The Facility Port provides a balanced audio input. -
Page 25: Appendix
APPENDIX PCB jumper locations The MPA MK2 has various internal jumpers, the setting of which may require alteration during installation. The diagram below shows the locations of the internal jumpers (not to scale), all of which are located on the main PCB. The table below lists each jumper and its purpose, together with the factory default setting. -
Page 26: Table Of Internal Jumpers And Default Settings
Table of internal jumpers and default settings The table below lists each jumper and its purpose, together with location and factory default setting. JUMPER DESCRIPTION EFFECT DEFAULT REMARKS J1A & J1B must J1A, J1B Line 6 priority OFF: Line Input 6 operates as other line inputs. always be moved together. -
Page 27: Troubleshooting
Troubleshooting EMC Considerations Fault conditions are indicated by the front panel STATUS LED MPA MK2 mixer-amplifiers fully conform to the relevant [6] flashing either red or green. electromagnetic compatibility (EMC) standards and are technically well behaved. You should experience no problems interfacing units to other items of equipment and under Status LED flashes GREEN - Output Power reduced normal circumstances, no special precautions need to be... -
Page 28: Technical Specifications
TECHNICAL SPECIFICATIONS Line Inputs Frequency Response 20 Hz to 20 kHz, ±1 dB Sensitivity 195 mV (-12 dBu) to 2.0 V (+8 dBu) Input impedance 47 kohms Headroom 16 dB Noise <-90 dB (22 kHz bandwidth) Equalisation HF: ±10 dB @ 10 kHz; LF: ±10 dB @ 50 Hz Microphone Inputs Frequency Response -3 dB @100 Hz (fixed filter) to 20 kHz, ±1 dB... - Page 29 General Power input Universal type, 85 to 265 VAC, 45 to 65 Hz Fuse details 5 x 20 mm, time delay, 4 A 0 °C to 35 °C (Note: performance and specifications cannot be guaranteed Normal operating temperature outside of this range) MPA120 MK2 Natural convection Cooling...
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