The Cloud MPA Series is intended to provide a complete audio solution for Houses of Worship, retail outlets, hotels, licensed premises and other spaces where music, announcements and/or flexible paging are required. It combines the functions of a two-channel microphone mixer with full paging facilities, a six-input music source selector and a mono power amplifier in a single 1U unit. The MPA mixer-amplifiers have six unbalanced stereo line inputs for music sources, and two balanced microphone inputs. Each microphone input has its own rear panel sensitivity control and front panel gain control, allowing multiple mics to be mixed together. Each line input has a rear panel sensitivity control; the required music source is selected by a front panel rotary switch and the volume is also adjusted on the front panel. The selected music source is mixed with the summed mic signals before being fed to the power amplifier stage. The MPA Series is compatible with the Cloud PM1 single-zone paging microphone, and may also be used for one of the zones supported by the Cloud PM4/8/12/16/4-SA/8-SA multizone paging microphones. Alternatively, Mic 1 input may be configured to suit most OEM paging systems; paging is activated by a short-to-ground access connection, and Mic 1 will have priority over Mic 2 to prevent announcement clashes (this priority may be overridden by moving an internal jumper). Mic inputs may be selected to have automatic priority over the selected music source, and additionally, Line Input 6 may be set to have priority over any other input selected to facilitate connection of a digital sound store or similar device. A pre-announcement chime may also be enabled at installation. To allow integration into existing 70/100 V-line PA/VA systems, the mic channel also has a high impedance input which allows the local subsystem being driven by the MPA MK2 to carry paging and/or emergency announcements made using the building’s main system. If the building’s existing system is used for background music, the high impedance connection can alternatively be routed to the LINE 5 input by moving an internal jumper: this permits the background music to be fed into the area covered by the MPA MK2, with the advantage of local or remote level control for that area alone.
Cloud MPA120MKII Features
• Super compact design with very low power consumption
• Six (unbalanced) stereo line inputs with individual sensitivity adjustment
• Two balanced mic inputs – 12 V phantom power available on either or both
• Separate HF/LF EQ adjustments for mic and music source
• Paging control on Mic 1 input via short-to-ground access connection
• Mic 1 configurable as high-voltage input for paging from existing 70/100 V-line system
• Selectable VOX mic-over-music priority on all mic Inputs
• Automatic Mic 1-over-Mic 2 priority in Page mode
• Selectable LINE 6 priority with choice of release times
• Selectable pre-announcement chime
• Music Mute
• Facility Port supports BT-1 Bluetooth and/or LM-2 Active Input Plates
• Compatible with standard Cloud remotes RL-1 &RSL-6 Series
• Power amplifier protection circuitry & input limiter
• Transformerless output stage 70/100 V-line systems directly, or low impedance loudspeakers (4/8 ohms)
• Aux output from pre-amp (balanced, line level)
• Automatic power-down function (user-selectable)
• ENERGY STAR Certification applied for
• Convection cooled (MPA120MK2); forced-air cooling with variable speed control (MPA240MK2)
• 1U 19” rack mounting unit
Cloud MPA120MKII 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 Sensitivity 2.54 mV (-50dBu) to 245 mV (-10 dBu) Input Impedance 3.3 kohms (balanced) Phantom Power 12 V, switchable per-input by jumpers Headroom 16 dB Noise (EIN) -126 dBu Equalisation HF: ±10 dB @ 5 kHz LF: ±10 dB @ 100 Hz High voltage input Frequency Response via Mic I i/p -3 dB @100 Hz (fixed filter) to 20 kHz, ±1 dB via Line 5 i/p 20 Hz to 20 kHz, ±1 dB Input Gain Control 10 dB to 20 dB Noise <-90 dB (22 kHz bandwidth) Facility Input Frequency Response 20 Hz to 20 kHz, ±1 dB Sensitivity 0.775 V (0 dBu) Input impedance 10 kohms (balanced) Headroom 18 dB Noise Gate -60 dB Main Outputs Output Power (1 kHz continuous sine wave) MPA120 MK2 120 watts MPA240 MK2 240 watts Minimum load Low-Z output 4 ohms High-Z output 70 V-line MPA120 MK2 41 ohms MPA240 MK2 66 ohms 100 V-line MPA120 MK2 21 ohms MPA240 MK2 33 ohms Frequency response Low-Z output 20 Hz to 20 kHz, ±1 dB High-Z output 20 Hz to 20 kHz, ±1 dB (65 Hz filter off) THD + N < 0.05% @ 1 kHz Protection Fixed level signal limiter: DC, over-current and over-temperature protection Auxiliary Output Nominal output level 0 dBu (0.775 Vrms), balanced Noise <-90 dB, 22 kHz bandwidth
