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E Series – E475 Operating Instructions

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CONTENTS

DECLARATION OF CONFORMITY ........................................................................ 4

THANKS ............................................................................................................... 5

INTRODUCTION ................................................................................................... 5

IMPORTANT SAFETY INSTRUCTIONS ................................................................ 6

INSTRUCTIONS DE SECURITE IMPORTANTES ...................................................7

Installing Your Amplifier: Electrical Considerations ......................................... 8

Installing Your Amplifier: Mechanical Considerations ...................................... 9

Installing Your Amplifier: RF Emissions ........................................................... 9

About Your Amplifier: Dynamic Amplifier Performance Measurements .

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Connecting To Your Amplifier: Inputs ............................................................... 10

Connecting To Your Amplifier: Speaker Outputs ............................................... 11

Connecting To Your Amplifier: Bridged (Mono) Operation ............................... 12

Operating Your Amplifier: Front Panel Controls and Indicators ...................... 13

Operating Your Amplifier: Notes and Switching On ......................................... 14

Operating Your Amplifier: Rear Panel Sockets and Switches ......................... 15

Looking After Your Amplifier: Maintenance ..................................................... 16

Looking After Your Amplifier: Warranty ........................................................... 16

Changing the Gain of Your Amplifier: Internal Adjustments! ........................... 17

Performance Of Your Amplifier: Specifications ............................................... 18

Содержание E4-75

Страница 1: ...weight Touring Power Amplifiers MC E475 Operating Instructions MC www mc2 audio co uk Tel 44 0 1404 44633 Fax 44 0 1404 44660 MC AUDIO Units 6 8 Kingsgate Heathpark Industrial Estate Honiton Devon England EX14 1YG 2 ...

Страница 2: ...Page 2 E Series E475 Operating Instructions ...

Страница 3: ...r Performance Measurements Error Bookmark not defined Connecting To Your Amplifier Inputs 10 Connecting To Your Amplifier Speaker Outputs 11 Connecting To Your Amplifier Bridged Mono Operation 12 Operating Your Amplifier Front Panel Controls and Indicators 13 Operating Your Amplifier Notes and Switching On 14 Operating Your Amplifier Rear Panel Sockets and Switches 15 Looking After Your Amplifier ...

Страница 4: ...00 T4 250 Ti500 Ti1000 Ti1500 Ti2000 Ti3500 Ti4 250 E15 E25 E45 E90 E100 E475 S800 S1400 and all OEM variants of these models are manufactured in accordance with EMC Directive 2004 108 EC in compliance with the following norm s or document s Technical Regulations EN55103 1 1996 EN55103 2 1996 and in accordance with the Low Voltage Directive 2006 95 EC in compliance with the following norm s or doc...

Страница 5: ...he same high standards of reliability and sound quality that our customers have come to expect of all MC2 products Proprietary current driven output stages give exceptional transient response and a resonant switchmode power supply with a large reservoir gives extremely high peak power without any bass sag Optical limiters keep mains input and output currents within a safe operating area at all tim...

Страница 6: ...ng and ensure that no objects filled with liquids such as vases are placed on the equipment To completely disconnect this equipment from the AC mains disconnect the power cord from the mains circuit breaker Where the amplifier is mounted in a rack and permanently connected to the mains then the rack should be installed with a readily accessible connector or an ALL POLE circuit breaker with 3mm bre...

Страница 7: ...des liquides comme les vases n est placé sur l équipement Pour complètement débrancher cet équipement de la conduite principale de courant alternatif débranchez la corde de pouvoir du disjoncteur de conduite principale Où l amplificateur est monté dans un égouttoir et en permanence raccordé à la conduite principale alors l égouttoir devrait être installé avec un connecteur sans hésiter accessible ...

Страница 8: ... accessible connector or an ALL POLE circuit breaker with 3mm breaking distances This unit is fitted with a 3 wire power cord THE EARTH LEAD SHOULD NOT BE DISCONNECTED IN ANY CIRCUMSTANCE If ground loops are encountered consult the section on connecting your amplifier on page 10 The wiring colours are 230V AREAS EARTH GREEN AND YELLOW 120V AREAS EARTH GREEN NEUTRAL BLUE NEUTRAL WHITE LIVE BROWN LI...

Страница 9: ...ing systems ENSURE THERE IS ADEQUATE VENTILATION The cooling fans suck cool air in through the front and blow hot air out at the rear of the unit through the ventilating grills The front and rear of the amplifier should have free exposure to the air i e in a rack leave the front rear doors off with 2cm air gap at the sides IF AIR IS NOT ALLOWED TO ESCAPE FROM THE REAR OVER HEATING WILL OCCUR Take ...

Страница 10: ...lanced sources If it is unavoidable however the following wiring should be used The cable should still be twin core plus screen PIN1 Screen connected to the chassis of the unbalanced equipment or left disconnected at the unbalanced end PIN2 Hot signal PIN3 Cold ground 0V NOTE This amplifier is wired to the latest industry recommendations PIN1 is connected directly to the chassis mains earth If gro...

Страница 11: ...ey are not both at ground potential Connecting them together will damage the amplifier and void the warranty As the currents involved are very high and to ensure best performance the speaker cables should be kept as short as possible and conform to the following minimum requirements E475 14A into 4 Ohm speaker loads When operating the amplifier into loads of less than 4 Ohms be aware that the curr...

Страница 12: ...nel pair C D The method is the same for both channel pairs Supply signal to Channel A or C input only and push in the appropriate rear panel switch marked LINK A B or LINK C D Use Channel A or C s Output Speakon connector and connect as follows Pin 2 Hot Pin 1 Cold When operating in bridged mode the minimum impedances are doubled The minimum load in bridged mode is 8 ohms ...

Страница 13: ...Limit indicator can operate independently of the bar graph meter Typical conditions that may trigger the output current monitor circuitry would be very low load impedance or high subsonic or VHF levels 4 Attenuation Controls These are analogue controls allowing precise level settings Note that when channels are linked using the rear panel link switches some controls may be inactive see page NN for...

Страница 14: ...t If the unit is used in an extremely dusty or smoky environment it should be cleaned of any collected debris at regular intervals Please also see the notes regarding maintenance on page NN It is important that the power output of your amplifier is matched to the power handling capacity of your loudspeaker If not damage to the loudspeaker could occur Switching On At switch on the protection circui...

Страница 15: ...fering 3B of Power Reduction Control The settings for these switches are on the rear panel for quick reference 4 Input XLR sockets Connect signal inputs to these sockets wired pin 2 hot 3 cold 1 ground For sensitivity and impedance of these inputs please see the specifications on page NN 5 Fan outlet The variable speed fans suck air in through the front vents and out through the back of the amplif...

Страница 16: ...nts as they will damage the paint finish and could remove printing If you have any doubts about carrying out maintenance please refer to a service engineer or contact your local dealer Looking After Your Amplifier Warranty Your amplifier is guaranteed for a period of five 5 years from the date of manufacture Please note that this does not apply to OEM versions of the amplifier please consult your ...

Страница 17: ...justment is by moving a link on the top input PCB one link for each channel The gain may be set to 32dB factory default 26dB or 31dB Remember setting higher gain does not change the maximum available power but changes the level of signal input to achieve maximum power In any case provided that the input signal is less than 20dBu 7 7V the built in limiter circuit will prevent distortion within the ...

Страница 18: ...oxed shipping 12 6 Additional Specifications Parameter Units E90 Input Impedance Active Balanced Ohms 20k Input CMRR dB 60 SNR dBA 105 Damping Factor 1kHz 8 ohms 400 Signal Limiters Present Yes Protection Present Short Circuit DC Output Temperature Yes Mains In rush Control Present Yes Output Power per channel 8 Ohms Watts Sine Wave 1kHz 725 Continuous music Crest Factor of 2 8 or 9dB 750 Continuo...

Страница 19: ... 8 2 4 3 4 5 0 9 4 288 319 367 494 120 4 2 4 3 6 5 4 10 1 288 321 379 515 120 2 No Sig l Quiescent Light Crest Factor of 7 8 18dB Average Crest Factor of 4 8 14dB Heavy Crest Factor of 2 8 9dB For details of measurement methods please refer to the Technical Support area of our website PRC Settings and Maximum Output Power Reduction Control Setting Per Channel Bridged Output Power per channel Crest...

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