Musical Fidelity M250 Instructions For Use Manual Download Page 1 | Manualshive

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M250

Amplifier Instructions for Use Page 1 of 8

Issue 4: May 2002

O PERATE

PO W ER

M USIC AL FIDELITY

M250

MONOBLOC AMPLIFIER

INSTRUCTIONS FOR USE

Thank you for purchasing the Musical Fidelity M250 monobloc power amplifier.

Used properly and carefully, it should give you many years of outstanding

musical reproduction.

Dust regularly with a soft duster or soft brush, but be careful when using

cleaning or polishing agents - they may harm the surface finish.

If you have any questions about your audio system,

please consult your dealer who is there to help and advise.

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Summary of Contents for M250

Page 1: ...cal Fidelity M250 monobloc power amplifier Used properly and carefully it should give you many years of outstanding musical reproduction Dust regularly with a soft duster or soft brush but be careful when using cleaning or polishing agents they may harm the surface finish If you have any questions about your audio system please consult your dealer who is there to help and advise ...

Page 2: ... which is marked with the letter E or coloured green or green and yellow or by the earth symbol The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black If connecting to a BS1363 plug a 13 amp fuse must be used WARNING The...

Page 3: ... at high temperatures operate the unit in a well ventilated area and do not touch the side heatsink fins after periods of use at high output power Do not remove covers or try to gain access to the inside There are no internal user adjust ments Refer all service work to an authorised Musical Fidelity agent NOTE Unauthorised opening of the equipment will invalidate any warranty claims There are fuse...

Page 4: ...Y CI RCUM STAN CES N O USER SERVI CEABLE CO M PO NEN TS I NSI DE REFER SERVI CI NG TO Q UALI FI ED EN G I N EER LINE INPUT LOOP OUTPUT O N O FF TRIGGER IN TRIGGER OUT 3 4 5 6 Front panel layout 1 OPERATE indicator LED blue 2 Power status button see page 6 3 POWER on indicator LED orange Back panel layout 3 Speaker output see page 5 4 Speaker output see page 5 5 Power switch 6 IEC type mains inlet ...

Page 5: ...olume control on your preampli fier to minimum and switch on its power All input output and power connections should be made with the mains power switched OFF INPUT CONNECTIONS As the M250 is a mono power amplifier two are required for stereo operation and further units can be used for multi channel surround systems or bi amplification etc The M250 can be used with a preamplifier or any audio line...

Page 6: ...o input signal present when mains power is applied to the M250 it will turn on immediately with the OPERATE LED lit Trigger Mode The M250 responds to a trigger on con trol voltage of between 5 and 12 volts posi tive or negative received via the 3 5mm TRIGGER IN socket on the rear panel The first trigger pulse received after apply ing mains power will turn the amplifier on and cancel the audio sens...

Page 7: ... the case of the M250 power amplifier yourself as this will invalidate the guarantee Problem Possible Cause Remedy No power when MAINS Mains plug not inserted Plug in securely POWER switch is operated fully into rear socket No sound Tape monitor function has Switch off tape monitor been selected on the pre at the pre amplifier amplifier Wrong connections between Check audio input lead pre amplifie...

Page 8: ...31K Ohm Input sensitivity for full power output into 8 Ohms 1 42 Volts Signal noise ratio reference full power output 115dB A weighted Input 1 RCA connector Outputs 1 amplifier channel via 2 pairs of speaker binding posts 1 RCA loop output socket Power requirements 100 115 230V AC 50 60Hz factory preset 1000 Watts maximum into 8 Ohms load 70 Watts idle Dimensions 192 mm 7 6 inches wide 125 mm 4 9 ...

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