Cloudmpa240 Ut 1 User Manual
Cloudmpa240D3 CLOUDMPA240D3 CLOUDMPA240D3 pdf kavson.co.uk
2017-03-29
User Manual: Pdf Cloudmpa240 CLOUDMPA240 pdf kavson.co.uk
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MPA240/MPA120/MPA60 : General Purpose Mixer Amplifier Shown without rack ears General Description The increase in demand for higher quality mixed impedance output amplifiers for general installer applications has instigated the launch of Cloud Electronics new MPA Series, MPA240, MPA120 and MPA60, 6 line + 4 microphone inputs into a single zone with configurable 25/70 or 100 Volt internal transformer plus the industry standard wall mount remote controllers (RL1 & RSL6) make the MPA Series the most flexible and reliable installer amps in the market. • 6 Line inputs, stereo inputs summed to mono • All mics have VOX priority over music signals, providing 30dB of attenuation (on/off by jumper) • Line inputs via RCA phono’s with input gain controls adjacent to connectors • Source select via front panel rotary selector or remotely via RSL6 • Integrated chime triggered by access control of Mic 1 (on/off by jumper and level by internal preset) • Line input level via front panel control or remotely via RL1 or RSL6 • Compatible with Bose® SeriesIIS EQ Cards • Line 6 priority selectable by internal jumper, release time 3s/6s/12s selectable by internal jumper • Remote Music Mute configurable for NO or NC operation • Overall “Peak Limiter” with LED indication on front panel • Music EQ by tamperproof LF & HF presets on rear panel • 4 Microphone Inputs, low impedance balanced via phoenix style connectors Amplifier features: • Microphone EQ by tamperproof LF & HF presets on rear panel •Variable speed fan cooling • 100Hz HP dedicated filter on Microphone inputs • Switch on delay • Phantom power selected by internal jumper for each microphone • DC protection • Limiter dedicated to microphone inputs with LED indication • IV Limiting • Mic 1 has access triggered priority over Mics 2 – 4 • 2U Rack chassis fitted with removable rack ears. • 63Hz HP Filter for 25/70/100V operation Cloud Electronics Limited 140 Staniforth Road, Sheffield S9 3HF. England. Telephone: +44 (0)114 244 7051 Fax: +44 (0)114 242 5462 Web: www.cloud.co.uk E-mail: info@cloud.co.uk System Example – House of Worship (MPA240/120 or 60) • • • • • The single area has two fixed mic points, lectern 1 & 2 and a Radio Mic to allow the presenter mobility. RSL-6 Mic 1 Any of the input sources can be selected and the music level controlled by the RSL-6 at the back of the area. CD Player 1 The Automatic Source is on line 6 to give priority over all other inputs. CD Player 2 Dependent on the size of the area the MPA60 (60W), MPA120 (120W) or MPA240 (240W) can be used. The output can be configured as 100V/70V or 25V line output (as shown) or low impedence. Lectern 1 Lectern 2 Radio Mic 3 Input 1 Organ Mic 2 Input 2 Input 3 Input 4 Automatic Source Input 5 Input 6 Mic 1 Access (Mic 1) Mic 2 Mic 3 Mic 4 Output Remote Output 100V line output MPA60/120 or 240 Technical Specifications Line Inputs Frequency Response Distortion Sensitivity Input Gain Control Input Impedance Headroom Noise Equalisation Power Output 20Hz +0dB -1dB, 63Hz -3dB 3rd order filter, selectable by jumper 20kHz -1dB low impedance output, 20kHz -2dB 100/70/25V line outputs <0.03% low impedance output <0.04% 25/70/100V outputs @ 1kHz 1dB below full power 80kHz bandwidth 195mV (-12dBu) to 2V (+8dBu) 20dB range 47kΩ >-20dB -90dBr 22kHz bandwidth, 0dB input Relative to full power output. HF: ±10dB/10kHz LF: ±10dB/50Hz Distortion Gain Range Input Impedance Phantom Power Headroom Input Noise Equalisation MPA120 MPA60 100Hz / -3dB(3rd order filter) 20kHz +0, -1dB low impedance output 20kHz -2dB 100/70/25V line outputs <0.03% @ 1kHz -1dB below full power 80kHz bandwidth 10dB - 50dB >2kΩ (balanced) +15V (PCB jumper for on/off) >20dB -127dB EIN 22Hz - 22kHz (150Ω) HF: ±10dB/5kHz LF: ±10dB/100Hz 240 Watts, any output @1kHz, <0.07% THD+N 120 Watts, any output @1kHz, <0.07% THD+N 60 Watts, any output @1kHz, <0.07% THD+N Power Supply Power supply Mains Fuse rating (20mm x 5mm) MPA240 MPA120 MPA60 230V/115/100VAC Depending on version 230V version 100/115V version T4A H T2A H T1A H T8A H T4A H T2A H Cooling & Protection Cooling Microphone Inputs Frequency Response MPA240 Protection Variable speed fan cooling, air intake on the front of the product, exhaust on the rear Fixed level signal limiter with a max gain reduction of 20dB, DC protection, IV limiting & short circuit protection, Switch on delay Physical Dimensions Weight 482.6mm (19 inch)x 88.0mm (2U) x 344.5 mm deep (+ connectors & knobs) MPA240 12.6 kg net MPA120 10.5kg net MPA60 9.0kg net Graphs MPA240 100/70/25V Output Frequency Response Cloud Electronics Ltd MPA240 Line Input Crosstalk Cloud Electronics Ltd MPA 240 Constant Voltage Frequency Response -62 -0 -64 -2 -66 -4 -68 -6 -70 -8 -72 -10 -74 -12 -76 -14 d B r -16 d B r -18 -20 -22 -80 -82 -86 -26 -88 -28 -90 -30 -92 -32 -94 -34 -96 -36 -98 -38 -40 20 50 100 200 500 Hz 1k 2k 5k 10k -100 20 20k MPA240 Microphone EQ Curves 50 100 200 500 Hz 1k 2k 5k 10k 20k MPA240 Music EQ Curves Cloud Electronics Ltd Cloud Electronics Ltd Microphone EQ Curves +15 MPA240 Music EQ Curves +14 +10 +12 +5 +10 +0 +8 -5 +6 -10 +4 -15 -20 d B r -25 -30 +2 +0 -2 -4 -35 -6 -40 -8 -45 -10 -50 -12 -55 -60 20 Sweep 1 2 3 4 50 Trace 1 1 1 1 Colo r Black Black Black Black Line Style Solid Dash Dash Dot Dot 100 Thick 1 1 1 1 Data Anlr.Level A Anlr.Level A Anlr.Level A Anlr.Level A 200 Axis Left Left Left Left 500 Hz 1k 2k 5k 10k -14 20k 20 Comm ent HF Boost HF Cut LF Cut LF Boost Cloud Electronics Ltd 1 2 3 4 Trace 1 1 1 1 Colo r Black Black Black Black 100 Line Style Thick Solid Dash Dash Dot Dot 1 1 1 1 Data Anlr.Ampl Anlr.Ampl Anlr.Ampl Anlr.Ampl 200 Axis Left Left Left Left 500 Hz 1k 2k 5k 10k 20k Comm ent LF Cut LF Boost HF Boost HF Cut MPA240 Crosstalk:Adjacent Microphone Channels MPA240 Line Input Frequency Response Cloud Electronics Ltd +10 -60 -62 +9 T T T T MPA240 Crosstalk: Adjacent Microphone Channels T T -64 +8 -66 +7 -68 +6 -70 -72 +5 -74 +4 -76 +3 -78 +2 -80 +1 d B r -0 -1 -2 -82 -84 -86 -88 -90 -92 -3 -94 -4 -96 -5 -98 -6 -100 -102 -7 -104 -8 -106 -9 -10 20 50 Sweep MPA240 Line Input Frequency Response d B r -78 -84 -24 d B r MPA 240 Line Input Crosstalk -60 +2 -108 50 100 200 500 Hz 1k 2k 5k 10k 20k -110 70 100 200 500 1k Hz 2k 5k 10k 20k Block Diagram ACCESS INPUTS + ACCESS BYPASS MIC 1 0V HIGH PASS FILTER BYPASS CONNECT INPUT TO 0V TO OPEN MIC CHANNEL SPEAKER EQ SOCKET HIGH PASS FILTER POWER AMPLIFIER LIMITER 0V +15V PHANTOM POWER OUTPUT MIN LOAD 4 OHMS 0V MIC 1 ACCESS TRIGGERS CHIME GAIN PROTECT LINE OUTPUT TRANSFORMER MIC 1 ACCESS CHIME 100V 70V MIC 2 0V GAIN MIC 1 OVER MIC 2, 3 & 4 PRIORITY LINE 1 +15V PHANTOM POWER MIC EQ LIMITER LINE 3 MIC 3 0V COM AVO LINE 2 HIGH PASS FILTER 50V AUTO VOICE OVER MUSIC EQ GAIN +15V PHANTOM POWER VCA LINE 4 FORCE FRONT PANEL SOURCE SELECT FRONT PANEL MUSIC SOURCE AND LEVEL CONTROLS LINE 5 MIC 4 0V MUSIC MUTE GAIN REMOTE LEVEL CONNECTOR LINE 6 +15V PHANTOM POWER LINE 6 PRIORITY 3 3s RELEASE TIME 6s 12s - NO JUMPER 2 FRONT PANEL / REMOTE SWITCH ON / OFF 1 0V RSL-6 OPTIONAL REMOTE SOURCE AND LEVEL Architect’s and Engineer’s Specification The mono mixer-amplifier shall be equipped with six unbalanced stereo music inputs on phono sockets (RCA jacks) and four balanced microphone inputs on multipin connectors.The music input to be used shall be selectable by a 6-position front panel rotary switch.The four mic inputs shall be mixed to a mono signal and summed with a mono (L+R) sum of the selected music input. Each mic input shall have its own front panel level control. It shall be possible to control the level of the music source independently of the mic levels. Each music input and each mic input shall also have a rear panel gain control. 2-band equalisation adjustment shall be provided independently for the selected music source and summed mic signals. A second high-pass filter shall be included to remove LF content below 65Hz (-3dB) from the mixed music and mic signals to minimise transformer saturation in 100v/70v/25v line systems; this filter shall be internally by-passable. Two separate internal fixed limiter circuits shall be fitted; these shall be located at i) the output of the microphone mixer stage and ii) at the input of the power amplifier stage. Operation of either limiter shall be indicated by a front panel LED.The mixer-amplifier shall incorporate protection circuitry that isolates the output i) during power-up, ii) in the event of DC being detected at the amplifier output, iii) if the internal heatsink temperature exceeds 90C (194F). A control input shall be provided to activate one mic input (Mic 1) by external contact closure; it shall be possible to configure the mixer-amplifier such that this function is overriden and Mic 1 is always active. It shall be possible to configure the mixer-amplifier to perform the following additional functions: i) when activated by its control input, Mic 1 will take priority over any other mic input in use; ii) detection of a signal on any mic input will automatically reduce the music level by 30dB, iii) one line input will automatically override all others, even if unselected. Optional remote control panels shall be available to permit control of music level only or music level and input selection; it shall be possible to retrofit these to the mixer-amplifier at any time. An external control input shall be provided to allow muting of the music source by a fire alarm or other external emergency system. The mixer-amplifier will include a chime generator circuit triggered by a signal on Mic 1 input; it shall be possible to internally disable/enable this function. The mixer-amplifier shall be available in three models with different output powers of 240W, 120W or 60W , into a 4 ohm load.The mixer-amplifier shall be capable of driving either low impedance (4 ohms or higher) loads, or 100V, 70V or 25V line systems via an internal transformer fitted as standard. It shall not be possible to use both types of output simultaneously. The 100V, 70V and 25V transformer outputs shall be available on separate rear panel output terminals, shrouded by a screw-attached safety cover. The mixer-amplifier shall accept internal Bose™ Series IIS plug-in equaliser cards to permit use with compatible Bose™ loudspeakers.The mixer-amplifier shall be built in a 2U steel chassis for mounting in a standard 19” rack. Temperature-controlled forced-air fan cooling with front-to-rear airflow shall be employed.The amplifier will be fitted with a front-panel power switch with LED indication. The microphone mixer stage shall include a high-pass filter to remove background LF noise below 100Hz (-3dB). The mixer-amplifier shall be the Cloud MPA240 (240W output), the Cloud MPA120 (120W output) or the Cloud MPA60 (60W output). E&OE
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