Musical Fidelity A1001 User's Manual
Contents
1. modern hi fi equipment is complex and hence may be dam aged by lightning It is possible that during electrical storms the operation of some equipment may be adversely affected For complete protection of your hi fi system during such storms mains plugs should be removed and aerial leads disconnected Always ensure that when disconnecting and reconnecting your hi fi equipment the mains supply is switched off Instructions For Use Page 2 CONNECTIONS AND FACILITIES 3 MUSICAL FIDELITY AICS 31 CLASS A SUP RINTECSRATED AMPLI I FRONT PANEL BACK PANEL 1 Power on off button i Right speaker outputs 2 Tape source select tape es input 9 Tuner input monitor button 10 Aii 3 Volume control ii ee gt input 4 Volume position amp mute LED ie inpirt 12 Aux 3 input 5 Source selector buttons 13 Tape input 6 Remote receiver lens alae 14 Tape record output 15 Preamp output 16 Left speaker outputs 17 Right preamp amp power amp link 18 Left preamp amp power amp link 19 IEC type mains inlet 7 8 9 10 11 12 13 14 15 16 66000066 00000000 Instructions For Use Page 3 INSTALLATION INSTALLATION PRECAUTIONS Your new A1001 is designed and built to provide trouble free performance but as with all electronic devices it is necessary to observe a few precautions Please ensure that you have complied with these before you connect any AC power to your amplifier Retain this guide for future reference M Heed all war2. the following No power when Mains plug not inserted Plug in securely POWER is pressed correctly Volume control is set to Turn up the volume minimum Tape Source selector tape Press Tape monitor monitor button is button depressed Preamp to power amp links Replace links or switch removed or surround on un mute as processor or other device appropriate in pre power amp loop switched off or muted Unit muted volume control Un mute with remote position LED will be off control position LED should be on Speakers are not Check speaker cables connected or are connected incorrectly Sound is not precise Speakers are connected out Make sure that both lacking in bass and of phase speakers are stereo image connected correctly If none of these actions effect a cure please contact your dealer or an authorised Musical Fidelity service agent Remember never open the case of the A1001 yourself as this will invalidate the guarantee Instructions For Use Page 7 ee SPECIFICATIONS A1001 CLASS A SUPER INTEGRATED AMPLIFIER Power output 200W RMS per channel into 8Q 400W RMS per channel into 40 Frequency response 10 Hz 30kHz 1dB THD lt 0 06 20Hz 20kHz to full rated power lt 0 003 1kHz to full rated power S N ratio gt 91dB unweighted gt 96dB A weighted Inputs 6 x Line level Input sensitivity 300mV Power consumption 1000W maximum Power requirement 100 115 230V AC 50 60Hz F
3. A1001 CLASS A SUPER INTEGRATED AMPLIFIER INSTRUCTIONS FOR USE Thank you for purchasing the Musical Fidelity A1001 Class A Super Integrated Amplifier Used properly and carefully it should give you many years of outstanding musical reproduction The A1001 has been designed for the very high est possible sound quality allied to a natural tonal ity that brings life and soul to all forms of music We have invested much time and effort in the design of this unit we sincerely hope you will be delighted with your purchase 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 anything in your audio system please consult your dealer who is there to help and advise you Series Instructions For Use Page 1 PLEASE READ IMPORTANT This unit is supplied in the UK with a mains lead fitted with a moulded 13 amp plug If for any reason you need to cut off this plug please observe the following safety precautions Please dispose of the cut off plug safely It must not be plugged into a mains power supply The wires in the mains lead supplied with this appliance are coloured in ac cordance with the following code Green and yellow Earth Ble iisesicctb teed eine Neutral BLOWN ccccceeseeeeesseesseeeees Live WARNING This appliance must be earthed As the colours of the wires of the mains
4. actory preset for country Dimensions 475 x 164 x 540mm W x H x D Height includes feet depth includes terminals and volume knob Weight 30 kgs Standard accesories 1 x IEC type mains lead 1 x A1001 remote control handset 2 x batteries AA LR6 AM6 CE Musical Fidelity reserves the right to make improvements which may result in feature or specification changes without notice Instructions For Use Page 8 A1001 97 1
5. ent to USER INFORMATION doubling the power of your amplifier SWITCH ON When you switch on the A1001 the unit will initially be in a muted state for a few seconds to allow the circuits to stabi lise and to prevent any switch on thumps etc The volume control position indicator LED will then light when the unit becomes active Note if you mute the A1001 with the remote control before you switch it off you will then need to un mute the unit with the remote after switching on CONNECTIONS All connections should be made with the power OFF The A1001 has 6 line level inputs CD Tuner Aux 1 2 and 3 and Tape All inputs are electrically identical and are suitable for use with any source compo nent with an output voltage in the hundreds of millivolts mV This includes CD play ers tuners tape machines and the audio outputs of video recorders televisions DVD and LaserDisc players etc Enthusi asts who wish to use a turntable should purchase an external phono stage such as the Musical Fidelity X LP We recom mend that you use good quality screened interconnects such as the Musical Fidelity X LINX for all connections Do not use un screened interconnect cables as they have inferior performance and in some cir cumstances can actually damage the unit TAPE RECORDING The A1001 has a single tape circuit with facilities for off tape monitoring with 3 head cassette decks Connection of your tape machine to the A1001 sho
6. inter nally structured as fully separate preamp and monobloc power amp stages The separation of the pre and power amp stages allow them to be fully optimised for their specific func tions In addition this ensures total freedom from intermodulation and other distortions and noise that can occur when these circuits are combined The preamp and each power amp stage are built on separate PCBs with separate power supplies and a separate magneti cally sheilded mains transformer each By packaging the unit as an inte grated amplifier we were then able to provide perfect interconnection between these stages particularly as regards the crucial earth return currents and re move any need for potentially sound degrading interconnects whilst also giving a more compact amplifier solu tion All signal circuitry in the A1001 is fully discrete no I C s are used all circuitry has been designed from the ground up specifically for the A1001 LOUDSPEAKERS To get the best from your A1001 for a realistic soundstage and full dy namic range use it with loudspeakers of a reasonable efficiency An average rating for a loudspeaker these days is about 88dB This should mean that for an input of 1 watt measured at 1 metre distance the sound output will be 88dB This is actually a reasonably loud sound and much daily listening will not use much more power than this Note that changing to a pair of speakers with a rating of 91dB is equival
7. lead of this appliance may not corre spond with the coloured markings identifying the terminals in your plug proceed as follows eThe wire which is coloured green and yellow must be connected to the termi nal in the plug which is marked with the letter E or coloured green or green and yellow or by the earth symbol lt b eThe wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red eThe wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black elf connecting to a BS1363 plug a 10 amp fuse must be used WARNING Speaker Terminals In order to comply with BSEN60 065 safety regulations the 4mm banana plug holes have been fitted with plastic blanking pieces Removal of these will invalidate any safety approval of this unit WARNING Radio Frequency Interference RFI This hi fi product has been tested to ensure that its operation will not be ad versely affected by normal background levels of RFI It is possible that if this prod uct is subjected to abnormally high levels of RFI the unit may be susceptible and not perform as expected In the unlikely event of this happening on a regular basis please contact Musical Fidelity s service department The unit has also been tested to ensure that it does not radiate excessive levels of RFI that could affect other pieces of electronic or electrical equipment The electronics in
8. nd power amp stages are linked by means of gold plated bars fitted between the Preamp Output and Power amp Input sockets on the rear panel By removing these links the preamp and power amp stages may be used sepa rately Alternatively a signal processor such as a surround sound unit can then be connected between the preamp and power amp stages USER INFORMATION PREAMP OUTPUT The A1001 has an additional active preamp output situated on the back panel This provides extra flexibility for use in multi room or surround sound systems etc REMOTE CONTROL amp MUTE The A1001 is supplied with a remote control handset that can be used to select any input and increase or de crease the volume by means of the motorised volume control Additionally the remote handset has a Mute button which when activated cuts off all outputs from the unit In the mute active state the red LED position indicator in the volume knob will turn off WARNING heat Because the A1001 is strongly biased into Class A operation it gives off heat through the slots in the lid Never put anything on top of your A1001 Always ensure that the unit has adequate ventilation Instructions For Use Page 6 TROUBLESHOOTING Basic troubleshooting of an amplifier is similar to troubleshooting of any other electrical or electronic equipment Always check the most obvious possible causes first To give you a few ideas of what to look for check
9. nings on the back of the unit Place your A1001 where there is adequate ventilation Only connect the unit to a power supply of the type marked on the back of the unit Position the power supply lead and signal interconnect leads where they are not likely to be walked on or trapped by items placed on them BEFORE YOU SWITCH ON Do not use near water Do not place the amplifier near direct heat sources such as radiators or other equipment that produces heat Do not remove any covers or try to gain access to the inside The war ranty will be invalid if the unit has been tampered with There are no user adjustments within Refer all service work to an authorised Musical Fidelity agent There are fuses in the A1001 In the unlikely event that one blows take your A1001 to your audio dealer Do NOT try to replace the fuse yourself or you will invalidate the warranty You should make all connections to the A1001 before switching on Follow this routine before you listen for the first time and each time you change any connections Then check again BRWN Re Turn the volume control to nil Now you can switch on the power and carefully advance the volume to Check all the inputs and outputs to the A1001 the level you want and enjoy the music Instructions For Use Page 4 THE A1001 The A1001 CLASS A SUPER INTEGRATED AMPLIFIER was conceived as a very powerful integrated amplifier of the highest quality
10. uld be as follows The tape machine s Tape Line out puts go to the A1001 s Tape input sock ets continued overleaf Instructions For Use Page 5 The tape machine s Tape Line inputs go to the A1001 s Tape Record output To record simply select the required source with the source selector buttons on the front panel The selected source will now be sent to the Tape Record outputs for recording by the attached tape machine You will also be able to hear the se lected source through the loudspeakers Note you can adjust the listening level with the volume control without affecting the recording level TAPE RECORDING OFF TAPE MONITORING In conjunction with a 3 head cassette deck off tape monitoring allows the user to compare the recorded to original sound whilst a recording is made First select the required source in the normal way and start recording now the Tape Source select but ton on the left hand side of the front panel can be used to switch between Source the source signal and Tape the recorded sig nal allowing direct comparison Note that the LED indicator lights when Tape the recorded signal is selected On some 3 head cassette decks there is an additional tape source switch on the cassette ma chine itself which will need to be in the tape position for the above to work if you are in any doubt consult your tape machine s manual PREAMP POWER AMP LINKS The A1001 s preamp a
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