MC2 Audio MC1250 Operating Instructions Manual Download Page 1 | Manualshive

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MC750

OPERATING

INSTRUCTIONS

MC

2

AUDIO Ltd.,

Units 6-8 Kingsgate,

Heathpark Industrial Estate,

HONITON,

Devon EX14 1YG

England

Tel: ++(0)1404.44633 Fax: ++(0)1404.44660

www.mc2-audio.co.uk

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Summary of Contents for MC1250

Page 1: ...MC750 OPERATING INSTRUCTIONS MC 2 AUDIO Ltd Units 6 8 Kingsgate Heathpark Industrial Estate HONITON Devon EX14 1YG England Tel 0 1404 44633 Fax 0 1404 44660 www mc2 audio co uk ...

Page 2: ...S Inputs 8 Outputs 9 Rear panel switches 9 OPERATION Switching on 10 Level controls 10 Mute switches 10 Link switch 10 Level indicator 10 Limiters 10 Temperature control 11 Fault indicators 11 2 ohm LED 11 INTERNAL CONFIGURATION SWITCHES 12 REMOTE CONTROL OPTION 13 REMOTE CONTROL SET UP INSTRUCTIONS 14 ...

Page 3: ...tional Specifications Input Impedance Active balanced k ohms 20 20 Input CMRR dB 60 60 Hum Noise dB below max output 106 106 Damping Factor 1kHz into 8 ohms 400 400 Signal Limiters set to prevent excessive clipping Yes Yes Protection Short circuit DC output Temperature Yes Yes Mains in rush control Yes Yes Output Power watts into 8 ohms Sine wave 1kHz 575 375 Continuous music with Crest Factor of ...

Page 4: ...both on the apparatus and the packaging A product Declaration of Conformity statement and information regarding auxiliary apparatus and specifications required to meet conformity is available on request from our Customer Service Department on 44 0 1404 44633 This amplifier will only operate to its very high specification if it is installed and operated as described in this manual ...

Page 5: ...d rating has been fitted Make sure power outlets conform to the power requirements listed on the back of the unit Damage caused by connecting to improper AC voltage is not covered by the warranty SAFETY WARNING This unit is fitted with a 3 wire power cord For safety reasons THE EARTH LEAD SHOULD NOT BE DISCONNECTED IN ANY CIRCUMSTANCE If ground loops are encountered consult the section on input co...

Page 6: ...ave fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the equipment 16 To completely disconnect this equipment from the AC mains disconnect the power cord from the mains circuit breaker 17 Where ...

Page 7: ...l appareil l appareil a été exposé pour pleuvoir ou l humidité n opère pas normalement ou a été baissé 15 N exposez pas cet équipement au fait de tomber goutte à goutte ou au fait d éclabousser et garantissez qu aucun objet rempli des liquides comme les vases n est placé sur l équipement 16 Pour complètement débrancher cet équipement de la conduite principale de courant alternatif débranchez la co...

Page 8: ...ONS INPUTS The inputs are made via 2 separate 3 pin XLR connectors wired in parallel Either socket can be used as the input the other one can be used to link to other amplifiers daisy chain or to the other input for mono signals They are electronically balanced and should be connected via a high grade twin core screened cable as follows PIN1 Screen see note PIN2 Hot signal PIN3 Cold signal The amp...

Page 9: ...ly joined NOTE The load impedances change when operating in the bridged mode See Load Power section below LOAD POWER SWITCH 2 ohm 4 ohm In the 4 ohm position the amplifier supply voltages are set up for loads of 4 ohms and above Lower impedance loads can be connected but the internal current limit circuit could cause clipping and unless the signal is very dynamic the internal temperature rise will...

Page 10: ...ich show the signal headroom before clipping The 0dB LED is set at approximately 1 2dB below clipping They are referenced to the supply voltages and automatically adjust when the supply changes When the level controls are adjusted the level indicators change function and show the level control position They return to their normal function after the level has been set Limiters The MC750 incorporate...

Page 11: ...er to know this All other functions remain the same Normal dynamic signals will not cause the amplifier to overheat unless the air filter is clogged or the ventilation is inadequate See installation section Fault Indicators If the outputs are shorted or if DC is present the control circuit will disengage the outputs and the fault LED will illuminate The controller will keep monitoring the amplifie...

Page 12: ...ttack time of the limiter ON Fast OFF Slow MAINTENANCE ENSURE THAT ELECTRICAL POWER TO THE UNIT IS DISCONNECTED BEFORE CARRYING OUT ANY MAINTENANCE The filter behind the air intake apertures on the front of the MC range amplifiers should be cleaned or replaced periodically e g 12 24 months Filters in amplifiers located in more dirty atmospheres may require more frequent maintenance The filter shou...

Page 13: ...om the computer This allows the system to be set up to the client s requirements and then made secure against manual interference Two levels of security are available on the management control system through the use of passwords which permit a higher level access for the senior manager through one password and more limited access at a lower level to a number of other users Full Windows software is...

Page 14: ...either end of the cable and connected as follows PIN 2 hot positive PIN 3 cold PIN 5 screen Configuring the PC 1 Launch Amplifier Explorer program can be downloaded from www mc2 mc2 audio co uk 2 Click on the Tools menu and select Serial link setup Then SET OPERATING SYSTEM e g WIN98 SET COM PORT NUMBER SET PORT ADDRESS This happens automatically Set up is now complete Each amplifier has its own i...

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